Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band of hydrophilic paste positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome

Produits et services

(1) Pipeline renewal products, namely, saddles for connecting underground pipes.

Produits et services

Saddle pipe fittings, not of metal, for connecting underground pipes

Produits et services

(1) Pipeline renewal products, namely, pipeline repair and rehabilitation products for existing pipelines.

Produits et services

Pipe gaskets; Non-metal seals for underground pipe connections; Pipe gaskets for underground pipe

Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band of hydrophilic paste positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome

Abrégé

A method and apparatus for providing access to a buried pipe by excavating the ground to expose the pipe then attaching an access assembly to the pipe. The access assembly includes a curved plate with an aperture therein substantially aligned with an opening in the pipe. The access assembly has multiple sweeps, each sweep combined with a riser pipe. A first sweep is combined with the curved plate and substantially aligned with the aperture in the curved plate. A second sweep is in communication with the first sweep through an opening, the second sweep has an internal wall with an upper wall portion. The wall in the second sweep is angled downward and inward from the upper wall portion toward the opening so that components inserted into its riser pipe travel downward through the riser pipe then inward toward the aperture as the component passes through the second sweep. The access assembly may include a third sweep similar to the second sweep but on the opposite side of the first sweep and having an angled portion in the opposite direction.

Classes IPC  ?

• E03F 3/04 - Canalisations ou accessoires spécialement adaptés aux égouts
• F16L 41/12 - Raccordements des tuyaux aux parois ou à d'autres tuyaux, dans lesquels l'axe du tuyau est perpendiculaire au plan de la paroi ou à l'axe de l'autre tuyau utilisant des moyens de fixation qui entourent le tuyau
• F16L 41/08 - Raccordements des tuyaux aux parois ou à d'autres tuyaux, dans lesquels l'axe du tuyau est perpendiculaire au plan de la paroi ou à l'axe de l'autre tuyau
• F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau

Abrégé

A method and assembly is provided for repairing and sealing off the juncture between two pipes. The assembly includes a main liner member, a bladder assembly, and a sealing member. The main liner member is made of resin absorbent material. The sealing member may be a hydrophilic rubber gasket or gasket of similar impermeable compressible material. The sealing member is secured to the liner. The sealing member surrounds a portion of the main liner member and is positioned between the host pipes and the liner assembly in operation. The main liner is moved through the main pipe line to a position where the sealing member and the main liner extend across the access opening to the lateral pipe line. The bladder is expanded to urge the liner and sealing member against the pipe then the liner cures and hardens to permanently seal the junction between the main pipe and lateral pipe.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée

Abrégé

A method and means for repairing the junction of a main and lateral pipe are provided. A repair assembly includes a launcher device, a bladder assembly surrounding the launcher device, and a liner assembly surrounding the bladder assembly. The bladder assembly is frangibly connected to the launcher device to maintain the position of the bladder assembly relative to the launcher device during transport and positioning of the assembly. Likewise, the liner assembly, which includes main and lateral liner members, is frangibly connected to the bladder assembly. The frangible connections allow the position of the repair assembly to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly. Thus, the invention provides a way to mitigate the movement of components of the repair assembly during transport and positioning of the repair assembly.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 101/18 - Garnissage autrement que par revêtement

Abrégé

A method and means for repairing the junction of a main and lateral pipe are provided. A repair assembly includes a launcher device, a bladder assembly surrounding the launcher device, and a liner assembly surrounding the bladder assembly. The bladder assembly is frangibly connected to the launcher device to maintain the position of the bladder assembly relative to the launcher device during transport and positioning of the assembly. Likewise, the liner assembly, which includes main and lateral liner members, is frangibly connected to the bladder assembly. The frangible connections allow the position of the repair assembly to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly. Thus, the invention provides a way to mitigate the movement of components of the repair assembly during transport and positioning of the repair assembly.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 101/18 - Garnissage autrement que par revêtement

Abrégé

A method and assembly for sealing an opening in a pipe wherein the opening is a damaged/cracked section in a length of pipe or the junction between a main pipe and a lateral pipe. The assembly includes a sealing member attached to a positioning tube such as preliner. The sealing member is combined with the preliner so that when the assembly is positioned in the main pipe, the sealing member corresponds with the opening. The sealing member is sized such that it extends along the main pipe on opposite sides of the opening. A mainline liner is installed within the preliner. In some embodiments, after the mainline liner cures and hardens, a cutter is used to cut an opening in the mainline liner, preliner, and sealing member to reinstate service to the lateral pipe. The sealing member remains in place around the periphery of the lateral pipe junction to act as a water stop at the opening.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• B29C 63/34 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A method and assembly for sealing an opening in a pipe wherein the opening is a damaged/cracked section in a length of pipe or the junction between a main pipe and a lateral pipe. The assembly includes a sealing member attached to a positioning tube such as preliner. The sealing member is combined with the preliner so that when the assembly is positioned in the main pipe, the sealing member corresponds with the opening. The sealing member is sized such that it extends along the main pipe on opposite sides of the opening. A mainline liner is installed within the preliner. In some embodiments, after the mainline liner cures and hardens, a cutter is used to cut an opening in the mainline liner, preliner, and sealing member to reinstate service to the lateral pipe. The sealing member remains in place around the periphery of the lateral pipe junction to act as a water stop at the opening.

Classes IPC  ?

• B29C 63/34 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome

Abrégé

A method and assembly for sealing an opening in a pipe wherein the opening is a damaged/cracked section in a length of pipe or the junction between a main pipe and a lateral pipe. The assembly includes a sealing member attached to a positioning tube such as preliner. The sealing member is combined with the preliner so that when the assembly is positioned in the main pipe, the sealing member corresponds with the opening. The sealing member is sized such that it extends along the main pipe on opposite sides of the opening. A mainline liner is installed within the preliner. In some embodiments, after the mainline liner cures and hardens, a cutter is used to cut an opening in the mainline liner, preliner, and sealing member to reinstate service to the lateral pipe. The sealing member remains in place around the periphery of the lateral pipe junction to act as a water stop at the opening.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

An apparatus and method is provided for repairing an underground structure such as a pipe or manhole. The apparatus includes a liner assembly made of resin absorbent material. Some embodiments may further include a bladder assembly to help position the liner and press the liner against the walls of the underground structure. A sealing member is positioned in the underground structure. In some embodiments the sealing member is a separate member made from a compressible material, an absorbent material, or a hydrophilic or hydrophobic material. In other embodiments the sealing member is a portion of the liner assembly. The sealing member includes one or more channels adapted to receive a semi-liquid such as a hydrophilic or hydrophobic paste or grout. The semi-liquid is capable of swelling in response to being exposed to another liquid, such as water, and forms a seal between the liner assembly and the host pipe/ manhole.

Classes IPC  ?

• B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
• B29C 65/00 - Assemblage d'éléments préformésAppareils à cet effet
• B29C 73/00 - Réparation d'articles faits de matières plastiques ou de substances à l'état plastique, p. ex. d'objets façonnés ou fabriqués par utilisation de techniques couvertes par la présente sous-classe ou la sous-classe
• B29C 73/04 - Réparation d'articles faits de matières plastiques ou de substances à l'état plastique, p. ex. d'objets façonnés ou fabriqués par utilisation de techniques couvertes par la présente sous-classe ou la sous-classe utilisant des éléments préformés
• B29D 22/00 - Fabrication d'objets creux
• B29D 23/00 - Fabrication d'objets tubulaires

Abrégé

An apparatus and method is provided for repairing an underground structure such as a pipe or manhole. The apparatus includes a liner assembly made of resin absorbent material. Some embodiments may further include a bladder assembly to help position the liner and press the liner against the walls of the underground structure. A sealing member is positioned in the underground structure. In some embodiments the sealing member is a separate member made from a compressible material, an absorbent material, or a hydrophilic or hydrophobic material. In other embodiments the sealing member is a portion of the liner assembly. The sealing member includes one or more channels adapted to receive a semi-liquid such as a hydrophilic or hydrophobic paste or grout. The semi-liquid is capable of swelling in response to being exposed to another liquid, such as water, and forms a seal between the liner assembly and the host pipe/manhole.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• E03F 3/00 - Systèmes d'égouts
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• E03F 5/02 - Regards ou autres chambres de visiteOuvertures à neigeAccessoires
• F16L 101/18 - Garnissage autrement que par revêtement
• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts

Abrégé

Apparatus and methods for lining a pipe line having a first pipe section in communication with a second pipe section where the first pipe section has an inside diameter greater than an inside diameter of the second pipe section. A transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section is inverted into the pipe line along with a liner. A resinous material applied to the liner cures and hardens the liner after inversion. The transition tube creates a surface against which the liner can be compressed to help prevent the liner from being overstretched in the wider first pipe section.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

The present invention is an improved method and assembly for repairing a pipe or the junction of two pipes, such as sewer pipes. The assembly includes a launcher device having a launcher device body, a launcher device opening disposed on the launcher device body, and a main bladder substantially surrounding the launcher device body. The main bladder includes an opening that substantially aligns with the launcher device opening. The assembly further includes an absorbent liner and a lateral bladder having a tubular lateral bladder body portion and a flange portion. The flange portion of the lateral bladder is attached to the exterior of the launcher device body. A method of using the assembly includes impregnating the liner with resinous material; inserting at least a portion of the liner into the lateral bladder; inflating the bladders; pressing the liner against the pipe; and allowing the resinous material to cure and harden.

Classes IPC  ?

• B23P 6/00 - Remise en état ou réparation des objets
• B23P 6/04 - Réparation de pièces ou de produits métalliques brisés ou fissurés, p. ex. de pièces de fonderie
• B23P 11/02 - Assemblage ou désassemblage de pièces ou d'objets métalliques par des processus du travail du métal non prévus ailleurs en dilatant une pièce et en l'emmanchant ensuite sur une autre pièce par retrait, ou en rétractant une pièce et en l'emmanchant ensuite par dilatation, p. ex. en employant la pression de fluidesAssemblage ou désassemblage de pièces ou d'objets métalliques par des processus du travail du métal non prévus ailleurs par assemblage à force
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/17 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'extérieur du tuyau au moyen de bagues, de bandes ou de manchons pressés contre la surface extérieure du tuyau ou de la manche
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts

Abrégé

An apparatus and method is provided for structurally renewing and sealing a wall of a manhole. The apparatus includes a tubular sleeve impregnated with a hydrophilic or hydrophobic material capable of expanding when in contact with water, and a liner impregnated with a resinous material capable of curing and hardening. The apparatus is positioned in a manhole and inflated, which forces the tubular sleeve and the liner into contact with the wall of the manhole. The hydrophilic or hydrophobic material is forced into defects of the wall, thus sealing the wall, while the liner is allowed to cure and harden, thus structurally renewing the wall of the manhole.

Classes IPC  ?

• B29C 63/00 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet
• B32B 43/00 - Opérations spécialement adaptées aux produits stratifiés et non prévues ailleurs, p. ex. réparationAppareils pour ces opérations
• B32B 3/00 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme
• F16L 55/00 - Dispositifs ou accessoires à utiliser avec, ou en liaison avec, les tuyaux ou les systèmes de tuyaux
• F16L 5/00 - Dispositifs utilisés pour le passage des tuyaux, des câbles ou des conduits de protection au travers des murs ou des cloisons
• F16L 1/00 - Pose ou récupération des tuyauxRéparation ou assemblage des tuyaux sur ou sous l'eau
• E04B 1/00 - Constructions en généralStructures qui ne sont limitées ni aux murs, p. ex. aux cloisons, ni aux planchers, ni aux plafonds, ni aux toits
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet

Abrégé

An assembly and method of sealing a junction of a pipe and a second structure are provided. The assembly includes a pipe liner having a tubular portion and a brim portion, a compression plate, and a mechanical anchor adapted to secure the compression plate and brim portion of the pipe liner to the second structure. The assembly may further include a gasket for placement between the pipe liner and the pipe or second structure. The gasket may comprise a hydrophilic material, a hydrophobic material, or a compressible material. The methods of using the assembly include, but are not limited to, the use of a cured-in-place pipe liner.

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/162 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée

Abrégé

The present invention is an improved method and assembly for repairing a pipe or the junction of two pipes, such as sewer pipes. The assembly includes a launcher device having a launcher device body, a launcher device opening disposed on the launcher device body, and a main bladder substantially surrounding the launcher device body. The main bladder includes an opening that substantially aligns with the launcher device opening. The assembly further includes an absorbent liner and a lateral bladder having a tubular lateral bladder body portion and a flange portion. The flange portion of the lateral bladder is attached to the exterior of the launcher device body. A method of using the assembly includes impregnating the liner with resinous material; inserting at least a portion of the liner into the lateral bladder; inflating the bladders; pressing the liner against the pipe; and allowing the resinous material to cure and harden.

Classes IPC  ?

• B23P 6/00 - Remise en état ou réparation des objets
• B23P 6/04 - Réparation de pièces ou de produits métalliques brisés ou fissurés, p. ex. de pièces de fonderie
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• B23P 11/02 - Assemblage ou désassemblage de pièces ou d'objets métalliques par des processus du travail du métal non prévus ailleurs en dilatant une pièce et en l'emmanchant ensuite sur une autre pièce par retrait, ou en rétractant une pièce et en l'emmanchant ensuite par dilatation, p. ex. en employant la pression de fluidesAssemblage ou désassemblage de pièces ou d'objets métalliques par des processus du travail du métal non prévus ailleurs par assemblage à force
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts

Abrégé

The present invention comprises a method and means for repairing the wall of a manhole wherein a material capable of curing and hardening is adhered to the wall. An expandable bladder engages the curable and hardenable material and presses against and smoothes the material. The bladder may be chemically bonded to the curable and hardenable material or it may be mechanically bonded.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet

Abrégé

Apparatus and methods for lining a pipe line having a first pipe section in communication with a second pipe section where the first pipe section has an inside diameter greater than an inside diameter of the second pipe section. A transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section is inverted into the pipe line along with a liner. A resinous material applied to the liner cures and hardens the liner after inversion, The transition tube creates a surface against which the liner can be compressed to help prevent the liner from being overstretched in the wider first pipe section.

Classes IPC  ?

• F16L 55/162 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/164 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau un fluide d'étanchéité étant introduit à l'intérieur du tuyau
• F16L 55/1645 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau un matériau d'étanchéité étant introduit à l'intérieur du tuyau au moyen d'un outil se déplaçant dans le tuyau

Abrégé

Apparatus and methods for lining a pipe line having a first pipe section in communication with a second pipe section where the first pipe section has an inside diameter greater than an inside diameter of the second pipe section. A transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section is inverted into the pipe line along with a liner. A resinous material applied to the liner cures and hardens the liner after inversion, The transition tube creates a surface against which the liner can be compressed to help prevent the liner from being overstretched in the wider first pipe section.

Classes IPC  ?

• F16L 55/162 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/164 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau un fluide d'étanchéité étant introduit à l'intérieur du tuyau
• F16L 55/1645 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau un matériau d'étanchéité étant introduit à l'intérieur du tuyau au moyen d'un outil se déplaçant dans le tuyau

Abrégé

Apparatus and methods for lining a pipe line having a first pipe section in communication with a second pipe section where the first pipe section has an inside diameter greater than an inside diameter of the second pipe section. A transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section is inverted into the pipe line along with a liner. A resinous material applied to the liner cures and hardens the liner after inversion. The transition tube creates a surface against which the liner can be compressed to help prevent the liner from being overstretched in the wider first pipe section.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A method and means for repairing the junction of a main and lateral pipe are provided. A repair assembly includes a launcher device, a bladder assembly surrounding the launcher device, and a liner assembly surrounding the bladder assembly. The bladder assembly is frangibly connected to the launcher device to maintain the position of the bladder assembly relative to the launcher device during transport and positioning of the assembly. Likewise, the liner assembly, which includes main and lateral liner members, is frangibly connected to the bladder assembly. The frangible connections allow the position of the repair assembly to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly. Thus, the invention provides a way to mitigate the movement of components of the repair assembly during transport and positioning of the repair assembly.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 101/18 - Garnissage autrement que par revêtement

Abrégé

An apparatus and method for sealing pipes or underground structures is provided. In one embodiment, the end of a pipe is sealed by the use of a pipe liner and a sealing member. The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. In another embodiment, a manhole is sealed by the use of a sealing member, a mechanical fastener, and a manhole liner.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/18 - Accessoires de réparation des tuyaux

Abrégé

A method of repairing a manhole is provided. A mastic material capable of curing and hardening as applied to a lower portion of the manhole, including the barrel, bench, and into at least one pipe line extending from the manhole. A resin saturated liner may also be included into a portion of the pipe extending from the manhole. A manhole liner saturated with a resinous material is then positioned in the manhole, and the manhole liner, pipe liner, and mastic material are configured to cure at approximately the same time to form a homogenous, repaired interior of the manhole, including a portion extending into the pipe. The pipe or pipes can then be repaired in a manner such as inverting a liner or bladder into the pipe. In the addition of an end seal at the juncture between the pipe and manhole is also contemplated for further sealing the juncture.

Classes IPC  ?

• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• E02D 37/00 - Réparation des fondations endommagées
• E03F 5/02 - Regards ou autres chambres de visiteOuvertures à neigeAccessoires
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 58/10 - Revêtements caractérisés par les matériaux utilisés de caoutchouc ou de matériaux plastiques

Produits et services

(1) Pipe liner used to renew a mainline section of pipe and a lateral pipe.

Abrégé

A manhole liner and a method of using the same are provided. The manhole liner is sized substantially equally to the largest diameter of the manhole, so that the liner does not have to stretch to be pressed against the manhole wall. Additionally, the liner is impregnated with a resinous material capable of curing and hardening. A bladder, preferably stretchable circumferentially and having a diameter less than the smallest diameter of the manhole, is inserted into the liner. The bladder is expanded to press the liner against the wall of the manhole to dispense resinous material from the liner, while the liner is able to fold over itself in areas having a diameter less than the original diameter of the liner. Because the bladder stretches to produce a smooth outside surface, the resinous material will migrate to areas in the folds and will cure with a smooth interior surface.

Classes IPC  ?

• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage
• B28B 19/00 - Machines ou méthodes pour appliquer le matériau sur des surfaces pour former une couche permanente sur ces dernières
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• B29C 63/20 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet avec des couches ou des gainages tubulaires en utilisant une différence de pression, p. ex. sous vide
• E03F 5/02 - Regards ou autres chambres de visiteOuvertures à neigeAccessoires
• E04B 1/66 - Étanchéités

Abrégé

A repair assembly and method of use is provided. The repair assembly includes a liner assembly for repairing a pipe system including a first pipe, a second pipe extending from the first pipe, and in some embodiments a third pipe extending from the second pipe. The third pipe may include multiple pipes. The repair assembly further includes a bladder assembly. The liner and bladder assembly are configured to work together to be positioned within the first, second, third and any additional pipes to line and repair all of the components of the pipe system in a single repair. Such repair will reduce the amount of time required to repair such pipe systems, and will increase the efficiency of repairing pipes.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A repair assembly and method of use is provided. The repair assembly includes a liner assembly for repairing a pipe system including a first pipe, a second pipe extending from the first pipe, and in some embodiments a third pipe extending from the second pipe. The third pipe may include multiple pipes. The repair assembly further includes a bladder assembly. The liner and bladder assembly are configured to work together to be positioned within the first, second, third and any additional pipes to line and repair all of the components of the pipe system in a single repair. Such repair will reduce the amount of time required to repair such pipe systems, and will increase the efficiency of repairing pipes.

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A manhole liner and a method of using the same are provided. The manhole liner is sized substantially equally to the largest diameter of the manhole, so that the liner does not have to stretch to be pressed against the manhole wall. Additionally, the liner is impregnated with a resinous material capable of curing and hardening. A bladder, preferably stretchable circumferentially and having a diameter less than the smallest diameter of the manhole, is inserted into the liner. The bladder is expanded to press the liner against the wall of the manhole to dispense resinous material from the liner, while the liner is able to fold over itself in areas having a diameter less than the original diameter of the liner. Because the bladder stretches to produce a smooth outside surface, the resinous material will migrate to areas in the folds and will cure with a smooth interior surface.

Classes IPC  ?

• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage
• B28B 19/00 - Machines ou méthodes pour appliquer le matériau sur des surfaces pour former une couche permanente sur ces dernières
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• B29C 63/20 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet avec des couches ou des gainages tubulaires en utilisant une différence de pression, p. ex. sous vide
• E03F 5/02 - Regards ou autres chambres de visiteOuvertures à neigeAccessoires

Abrégé

A method and apparatus for repairing a pipe system including a main pipe extending between a first and second manhole and one or more lateral pipes extending from the main pipe is provided. Aspects of the invention include the use of a main liner member having a plurality of lateral liner tubes in fluid connection and extending from the main liner member. The main liner member is used to line a main pipe, while the multiple lateral liner tubes extend into separate lateral pipes extending in various orientations from the main pipe. This method and apparatus provides for a single assembly to be able to line multiple pipes, which reduces time and cost for pipe repair.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts

Abrégé

A method and apparatus for repairing a pipe system including a main pipe (14) extending between a first and second manhole (10, 12) and one or more lateral pipes (16, 17) extending from the main pipe (14) is provided. Aspects of the invention include the use of a main liner member (26) having a plurality of lateral liner tubes (27, 28) in fluid connection and extending from the main liner member (26). The main liner member (26) is used to line the main pipe (14), while the multiple lateral liner tubes (27, 28) extend into the separate lateral pipes (16, 17) extending in various orientations from the main pipe (14). This method and apparatus provides for a single assembly to be able to line multiple pipes, which reduces time and cost for pipe repair.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts

Abrégé

ABSTRACT The method for rehabilitating a damaged section of a pipe without a need for a resin absorbent liner is provided. The method includes pumping a low viscosity material towards a damaged section of pipe and changing the viscosity prior to dispensing of the material. For example, the material may be partially cured prior to dispensing. The partially cured or higher viscosity material is compressed between an inflating bladder and interior wall of the pipe, and the material that is allowed to fully cure. The bladder either can then be removed from the pipe or could be allowed to maintain in the pipe providing a new interior surface for the repaired pipe.

Classes IPC  ?

• F16L 55/162 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau

Abrégé

A method and system for dispensing a material through a delivery apparatus is provided. The material initially comprises or is manipulated to comprise a low viscosity. The material either can comprise a curable material or can comprise initiators, which can be activated to raise the viscosity at a later time and position. The low viscosity material is moved through the delivery apparatus for a relatively long distance using low energy. Upon nearing an end use application, the material and/or initiators can be activated by a curing agent, such as a light or heat source, such that the viscosity of the material be raised prior to the end use application thereof. Therefore, the present invention provides a method and system for moving a material normally having a higher viscosity a long distance requiring lower energy and pressure.

Classes IPC  ?

• B05B 5/00 - Pulvérisation électrostatiqueDispositifs de pulvérisation comportant des moyens pour charger électriquement le pulvérisatPulvérisation de liquides ou d'autres matériaux fluides par voies électriques

Abrégé

An apparatus and method is provided for structurally renewing and sealing a wall of a manhole. The apparatus includes a tubular sleeve impregnated with a hydrophilic or hydrophobic material capable of expanding when in contact with water, and a liner impregnated with a resinous material capable of curing and hardening. The apparatus is positioned in a manhole and inflated, which forces the tubular sleeve and the liner into contact with the wall of the manhole. The hydrophilic or hydrophobic material is forced into defects of the wall, thus sealing the wall, while the liner is allowed to cure and harden, thus structurally renewing the wall of the manhole.

Classes IPC  ?

• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet

Abrégé

The invention relates towards a bladder tube having an open and a closed end. The closed end of the bladder tube is formed by folding a surplus portion of the bladder tube, inserting a grommet through the folded portion of the bladder tube, banding at least a portion of the surplus portion of the bladder tube, and passing at least a portion of the banding through the grommet. The banding may comprise a rope or other material that can be tied. An exhaust port may also be punched through the layers of the folded portion of the bladder tube to exhaust steam or other fluids.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A liner assembly and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member and a lateral liner tube. A collar disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.

Classes IPC  ?

• B29C 73/00 - Réparation d'articles faits de matières plastiques ou de substances à l'état plastique, p. ex. d'objets façonnés ou fabriqués par utilisation de techniques couvertes par la présente sous-classe ou la sous-classe
• B32B 43/00 - Opérations spécialement adaptées aux produits stratifiés et non prévues ailleurs, p. ex. réparationAppareils pour ces opérations
• B65C 3/26 - Pose d'étiquettes sur des réceptacles non rigides, p. ex. des bouteilles en polyéthylène, sur des boîtes devant être gonflées par pression d'air interne avant l'étiquetage
• B65C 3/16 - Pose d'étiquettes sur des réceptacles courts et rigides sur le corps du réceptacle le réceptacle étant présenté pour l'étiquetage de manière à ce que la ligne médiane soit verticale en enroulant les étiquettes sur des réceptacles cylindriques, p. ex. des bouteilles
• B29C 65/00 - Assemblage d'éléments préformésAppareils à cet effet
• B32B 37/00 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons
• B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
• B29D 22/00 - Fabrication d'objets creux
• B29D 23/00 - Fabrication d'objets tubulaires
• B32B 1/08 - Produits tubulaires
• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• B29C 65/48 - Assemblage d'éléments préformésAppareils à cet effet en utilisant des adhésifs
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• B29C 65/52 - Application d'un adhésif

Abrégé

A method and means for repairing the junction (60) of a main (56) and lateral (58) pipe are provided. A repair assembly (10) includes a launcher device (12), a bladder assembly (22) surrounding the launcher device (12), and a liner assembly (32) surrounding the bladder assembly (22). The bladder assembly (22) is frangibly connected to the launcher device (12) to maintain the position of the bladder assembly (22) relative to the launcher device (12) during transport and positioning of the assembly. Likewise, the liner assembly (32), which includes main (34) and lateral liner members (36), is frangibly connected to the bladder assembly (22). The frangible connections allow the position of the repair assembly (10) to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly (10). Thus, the invention provides a way to mitigate the movement of components of the repair assembly (10) during transport and positioning of the repair assembly (10).

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome

Abrégé

A method and means for repairing the junction of a main and lateral pipe are provided. A repair assembly includes a launcher device, a bladder assembly surrounding the launcher device, and a liner assembly surrounding the bladder assembly. The bladder assembly is frangibly connected to the launcher device to maintain the position of the bladder assembly relative to the launcher device during transport and positioning of the assembly. Likewise, the liner assembly, which includes main and lateral liner members, is frangibly connected to the bladder assembly. The frangible connections allow the position of the repair assembly to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly. Thus, the invention provides a way to mitigate the movement of components of the repair assembly during transport and positioning of the repair assembly.

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome

Abrégé

A method and means for repairing the junction (60) of a main (56) and lateral (58) pipe are provided. A repair assembly (10) includes a launcher device (12), a bladder assembly (22) surrounding the launcher device (12), and a liner assembly (32) surrounding the bladder assembly (22). The bladder assembly (22) is frangibly connected to the launcher device (12) to maintain the position of the bladder assembly (22) relative to the launcher device (12) during transport and positioning of the assembly. Likewise, the liner assembly (32), which includes main (34) and lateral liner members (36), is frangibly connected to the bladder assembly (22). The frangible connections allow the position of the repair assembly (10) to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly (10). Thus, the invention provides a way to mitigate the movement of components of the repair assembly (10) during transport and positioning of the repair assembly (10).

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome

Abrégé

A method and means for repairing the junction of a main and lateral pipe are provided. A repair assembly includes a launcher device, a bladder assembly surrounding the launcher device, and a liner assembly surrounding the bladder assembly. The bladder assembly is frangibly connected to the launcher device to maintain the position of the bladder assembly relative to the launcher device during transport and positioning of the assembly. Likewise, the liner assembly, which includes main and lateral liner members, is frangibly connected to the bladder assembly. The frangible connections allow the position of the repair assembly to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly. Thus, the invention provides a way to mitigate the movement of components of the repair assembly during transport and positioning of the repair assembly.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 101/18 - Garnissage autrement que par revêtement

Abrégé

The present invention provides a liner assembly for repairing the wall of a pipe that includes a transmitter or transmitters capable of transmitting information, such as identification information and physical characteristics of the area around the transmitter. Embedded in the liner is a transmitter, which includes a radio-frequency identification and at least one sensor. The RFID transmits identification information about the repaired wall, while the sensor provides physical characteristics of the environment in and around the pipe. Examples of physical characteristics may include temperature, pressure, flow, chemical reactions, velocity of the pipe, and the like. Additional transmitters may be used along the length of the pipe to determine characteristics at multiple locations, with each additional transmitter including the same or different sensors.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts

Abrégé

The present invention provides an apparatus and method for repairing a manhole. The wall of the manhole is lined with a liner to form a new wall. The liner includes a resin that cures to form the new wall that is similar to the repaired wall. Embedded in the liner is a wireless data transfer mechanism that includes a transmitter, such as a radio-frequency identification (RFID). The RFID transmits identification information about the liner or the repaired wall. The transmitter may be capable of data entry in the field or may be otherwise field-programmable and further capable of transmitting at least one physical characteristic. Examples of physical characteristics may include temperature, pressure, chemical reactions, flow within the manhole, and the like. Additional transmitters may be used along the length of the manhole to determine characteristics at multiple locations, with each additional transmitter including the same or different sensors.

Classes IPC  ?

• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet

Abrégé

The invention utilizes temperature sensing to measure the internal temperature of an underground structure, such as a pipe, for the purpose of determining a proper cure interval and/or mix ratio of a resin system during a lining operation. A temperature sensor is placed within a pipe or other underground structure to be rehabilitated and at least one temperature measurement is taken within the structure prior to or simultaneously with the installation of a liner. Once the temperature of an internal aspect of the structure is taken, a cure schedule is utilized to determine the appropriate curing time based on test data obtained from baseline tests performed under simulated conditions in a soil cell apparatus. A computer program may be utilized such that upon entering the type of resin, the lowest recorded temperature of the structure, and the initial resin temperature, a cure schedule is supplied.

Classes IPC  ?

• B29C 63/00 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet

Abrégé

An apparatus and method for sealing pipes or underground structures is provided. In one embodiment, the end of a pipe is sealed by the use of a pipe liner (140) and a sealing member (110). The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. In another embodiment, a manhole is sealed by the use of a sealing member, a mechanical fastener, and a manhole liner.

Classes IPC  ?

• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

An assembly and method of sealing a junction of a pipe and a second structure are provided. The assembly includes a pipe liner having a tubular portion and a brim portion, and a mechanical anchor adapted to secure the brim portion of the pipe liner to the second structure. The assembly may further include a compression gasket for placement between the pipe liner and the pipe or second structure. The compression gasket may comprise a hydrophilic material, a hydrophobic material, or a compressible material. The methods of using the assembly include, but are not limited to, the use of a cured-in- place pipe liner.

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau

Abrégé

An assembly and method of sealing a junction of a pipe (102) and a second structure (104) are provided. The assembly includes a pipe liner (110) having a tubular portion and a brim portion (112), and a mechanical anchor (114) adapted to secure the brim portion 112 ()of the pipe liner (110) to the second structure (104). The assembly may further include a compression gasket for placement between the pipe liner (110) and the pipe (102) or second structure (104). The compression gasket may comprise a hydrophilic material, a hydrophobic material, or a compressible material. The methods of using the assembly include, but are not limited to, the use of a cured-in-place pipe liner.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

An assembly and method of sealing a junction of a pipe and a second structure are provided. The assembly includes a pipe liner having a tubular portion and a brim portion, and a mechanical anchor adapted to secure the brim portion of the pipe liner to the second structure. The assembly may further include a compression gasket for placement between the pipe liner and the pipe or second structure. The compression gasket may comprise a hydrophilic material, a hydrophobic material, or a compressible material. The methods of using the assembly include, but are not limited to, the use of a cured-in-place pipe liner.

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

An assembly and method of sealing a junction of a pipe (102) and a second structure (104) are provided. The assembly includes a pipe liner (110) having a tubular portion and a brim portion (112), and a mechanical anchor (114) adapted to secure the brim portion 112 ()of the pipe liner (110) to the second structure (104). The assembly may further include a compression gasket for placement between the pipe liner (110) and the pipe (102) or second structure (104). The compression gasket may comprise a hydrophilic material, a hydrophobic material, or a compressible material. The methods of using the assembly include, but are not limited to, the use of a cured-in-place pipe liner.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

An apparatus and method is provided for lining the wall of a manhole. The apparatus may include a liner assembly, which includes an expansion device, an auxiliary bladder, a primary bladder, and a liner. The auxiliary bladder is first inflated near the top of the manhole. Next the primary bladder may be expanded to press the liner against the wall of the manhole. The liner, being impregnated with a resinous material, is pressed against the wall until the resinous material cures and hardens. The expansion device, auxiliary bladder, and primary bladder are then removed from the manhole. The result is a repaired manhole wall.

Classes IPC  ?

• B29C 63/34 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet

Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/162 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau

Abrégé

A pipe liner and a method of using the same are provided. The method includes inserting a pipe liner impregnated with a resinous material into a length of pipe, where the pipe liner has an outer diameter substantially equal to or greater than an inner diameter of the pipe. A bladder having an unstretched outer diameter less than the inner diameter of at least a portion of the length of pipe and capable of stretching circumferentially is inserted into the pipe liner. The bladder is expanded under fluid pressure against the pipe liner, pressing the pipe liner against an inner wall of the length of pipe. The resinous material is allowed to cure and harden, leaving a renewed pipe wall. The length of pipe may have a plurality of inner diameters, and the bladder stretches to produce a smooth interior surface of the pipe liner across the plurality of pipe diameters.

Classes IPC  ?

• B29C 65/00 - Assemblage d'éléments préformésAppareils à cet effet
• B31B 1/60 - Assemblage des surfaces ou des bords opposés; Collage
• B32B 37/00 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons
• B28B 19/00 - Machines ou méthodes pour appliquer le matériau sur des surfaces pour former une couche permanente sur ces dernières
• B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement

Abrégé

The present invention comprises a method and kit for repairing the wall of a manhole wherein a material capable of curing and hardening is adhered to the wall. An expandable bladder engages the curable and hardenable material and presses against and smoothes the material. The bladder may be chemically bonded.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet

Abrégé

The present invention includes a device and method for reinforcing the portions of an inflation bladder not contained by a liner in pipeline renewal applications. A liner/bladder assembly is provided wherein the liner is positioned relative to the bladder such that a portion of the bladder having a greater wall thickness extends beyond the ends of the liner. The present invention also includes a device and method for repairing the junction of a main pipe and the lateral pipe with bladders reinforced in areas unconstrained by the liners.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

An apparatus and method for sealing pipes. In one embodiment, the end of a pipe is sealed by the use of a pipe liner and a sealing member. The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste, and may also be a unitary member or formed from a sheet of material. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. The mechanical fastener aids in holding the sealing member in place at the end of the pipe.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

An apparatus and method for sealing pipes or underground structures is provided. In one embodiment, the end of a pipe is sealed by the use of a pipe liner and a sealing member. The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. In another embodiment, a manhole is sealed by the use of a sealing member, a mechanical fastener, and a manhole liner.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

Alignment systems and more particularly, to a split-screen camera system where multiple camera views are incorporated into a single composite image to align a component orthogonally to a target are provided. At least a first and second imaging device is used in conjunction with a processing unit adapted to extract or delete portions of at least a first image and a second image captured by the first and second imaging devices. The processor mirrors one of the images and creates a composite image of the first image and the second image as a split-screen image. The resulting processed image is displayed on a display terminal, and an operator aligns a component with a target.

Classes IPC  ?

• G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. The tubular sleeve is held in place by a mechanical fastener and a pipe liner is installed or otherwise placed through the tubular sleeve and against the wall of the pipe. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a mechanical fastener, a pipe liner, and a manhole liner.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a pipe liner, and a manhole liner.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

The pipe access device is comprised of a curved plate adapted to engage an underground pipe along an arc of the outer surface of the pipe, and a boss extending upwardly from the curved plate about an aperture in the curved plate. The curved plate extends along an arc of the outer surface of the curved plate that corresponds to a central angle of the pipe less than or equal to 180°. The curved plate includes a concave surface with a radius of curvature less than a radius of curvature of the outer surface of the pipe so as to bias the curved plate against the outer surface of the pipe when the curved plate is flexed to engage the pipe. The pipe access device is for use in providing access to the buried pipe that requires minimal excavation and disruption of the soil.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux

Abrégé

An apparatus and method of making a cured-in-place pipe repair to a lateral pipe having an area in need of repair. The method and apparatus use a liner assembly comprising a bladder tube and a liner tube. The liner tube comprises at least one layer of non-stretching material, which includes strands of non-stretching material oriented in the longitudinal direction of the liner tube. The strands allow radial stretching but ensure that the liner tube does not stretch longitudinally, which prevents the liner tube from stretching into a main pipe or past the area in need of repair during use. The liner tube may also comprise second and third layers of a resin impregnable material, such as felt, which surround the layer of non-stretching material such that the liner tube may be impregnated with a resinous material to repair a pipe having an area in need of repair.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a pipe liner, and a manhole liner.

Classes IPC  ?

• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts
• E03F 5/02 - Regards ou autres chambres de visiteOuvertures à neigeAccessoires
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 58/02 - Protection des tuyaux ou des accessoires pour tuyaux contre la corrosion ou l'entartrage au moyen de revêtements internes ou externes

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. The tubular sleeve is held in place by a mechanical fastener and a pipe liner is installed or otherwise placed through the tubular sleeve and against the wall of the pipe. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a mechanical fastener, a pipe liner, and a manhole liner.

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 58/02 - Protection des tuyaux ou des accessoires pour tuyaux contre la corrosion ou l'entartrage au moyen de revêtements internes ou externes

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a pipe liner, and a manhole liner.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• B65D 69/00 - Objets groupés pour commodité de stockage ou de transport sans utiliser d'éléments d'emballage

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. The tubular sleeve is held in place by a mechanical fastener and a pipe liner is installed or otherwise placed through the tubular sleeve and against the wall of the pipe. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a mechanical fastener, a pipe liner, and a manhole liner.

Classes IPC  ?

• F16J 15/02 - Joints d'étanchéité entre surfaces immobiles entre elles

Abrégé

The present invention comprises a method and means for repairing the wall of a manhole wherein a material capable of curing and hardening is adhered to the wall. An expandable bladder engages the curable and hardenable material and presses against and smoothes the material. The bladder may be chemically bonded to the curable and hardenable material or it may be mechanically bonded.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a pipe liner, and a manhole liner.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. The tubular sleeve is held in place by a mechanical fastener and a pipe liner is installed or otherwise placed through the tubular sleeve and against the wall of the pipe. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a mechanical fastener, a pipe liner, and a manhole liner.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

The present invention is directed to methods and assemblies for repairing pipes or pipe junctions. The assembly includes a launcher device having a launcher device with a main bladder substantially surrounding the launcher device body. The assembly further includes an absorbent liner and a lateral bladder having a tubular lateral bladder body portion and a flange portion. The flange portion of the lateral bladder may be attached to the exterior of the launcher device body. The lateral bladder may include an open end, a closed end, and an opening or hole proximal the closed end. A method of using the assembly includes impregnating the liner with resinous material, inserting at least a portion of the liner into the lateral bladder, pressing the liner against the pipe, and allowing the resinous material to cure and harden.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 55/162 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau
• F16L 55/26 - Hérissons ou chariots, c.-à-d. dispositifs pouvant se déplacer dans un tuyau ou dans une conduite et portant ou non un moyen de propulsion autonome
• F16L 58/18 - Protection des tuyaux ou des accessoires pour tuyaux contre la corrosion ou l'entartrage spécialement conçue pour les raccords de tuyaux

Abrégé

The present invention is an improved method and assembly for repairing a pipe or the junction of two pipes, such as sewer pipes. The assembly includes a launcher device having a launcher device body, a launcher device opening disposed on the launcher device body, and a main bladder substantially surrounding the launcher device body. The main bladder includes an opening that substantially aligns with the launcher device opening. The assembly further includes an absorbent liner and a lateral bladder having a tubular lateral bladder body portion and a flange portion. The flange portion of the lateral bladder is attached to the exterior of the launcher device body. A method of using the assembly includes impregnating the liner with resinous material; inserting at least a portion of the liner into the lateral bladder; inflating the bladders; pressing the liner against the pipe; and allowing the resinous material to cure and harden.

Classes IPC  ?

• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• B23P 11/02 - Assemblage ou désassemblage de pièces ou d'objets métalliques par des processus du travail du métal non prévus ailleurs en dilatant une pièce et en l'emmanchant ensuite sur une autre pièce par retrait, ou en rétractant une pièce et en l'emmanchant ensuite par dilatation, p. ex. en employant la pression de fluidesAssemblage ou désassemblage de pièces ou d'objets métalliques par des processus du travail du métal non prévus ailleurs par assemblage à force
• B23P 6/04 - Réparation de pièces ou de produits métalliques brisés ou fissurés, p. ex. de pièces de fonderie
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement
• B23P 6/00 - Remise en état ou réparation des objets

Abrégé

The present invention is directed to methods and assemblies for repairing pipes or pipe junctions. The assembly includes a launcher device having a launcher device with a main bladder substantially surrounding the launcher device body. The assembly further includes an absorbent liner and a lateral bladder having a tubular lateral bladder body portion and a flange portion. The flange portion of the lateral bladder may be attached to the exterior of the launcher device body. The lateral bladder may include an open end, a closed end, and an opening or hole proximal the closed end. A method of using the assembly includes impregnating the liner with resinous material, inserting at least a portion of the liner into the lateral bladder, pressing the liner against the pipe, and allowing the resinous material to cure and harden.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux

Abrégé

A manhole liner and a method of using the same are provided. The manhole liner is sized substantially equally to the largest diameter of the manhole, so that the liner does not have to stretch to be pressed against the manhole wall. Additionally, the liner is impregnated with a resinous material capable of curing and hardening. A bladder, preferably stretchable circumferentially and having a diameter less than the smallest diameter of the manhole, is inserted into the liner. The bladder is expanded to press the liner against the wall of the manhole to dispense resinous material from the liner, while the liner is able to fold over itself in areas having a diameter less than the original diameter of the liner. Because the bladder stretches to produce a smooth outside surface, the resinous material will migrate to areas in the folds and will cure with a smooth interior surface.

Classes IPC  ?

• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• B29C 63/34 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires
• E03F 5/02 - Regards ou autres chambres de visiteOuvertures à neigeAccessoires
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée

Abrégé

A manhole liner and a method of using the same are provided. The manhole liner is sized substantially equally to the largest diameter of the manhole, so that the liner does not have to stretch to be pressed against the manhole wall. Additionally, the liner is impregnated with a resinous material capable of curing and hardening. A bladder, preferably stretchable circumferentially and having a diameter less than the smallest diameter of the manhole, is inserted into the liner. The bladder is expanded to press the liner against the wall of the manhole to dispense resinous material from the liner, while the liner is able to fold over itself in areas having a diameter less than the original diameter of the liner. Because the bladder stretches to produce a smooth outside surface, the resinous material will migrate to areas in the folds and will cure with a smooth interior surface.

Classes IPC  ?

• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage
• B28B 19/00 - Machines ou méthodes pour appliquer le matériau sur des surfaces pour former une couche permanente sur ces dernières
• B29C 63/20 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet avec des couches ou des gainages tubulaires en utilisant une différence de pression, p. ex. sous vide
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• E03F 5/02 - Regards ou autres chambres de visiteOuvertures à neigeAccessoires

Abrégé

A method of providing a seal between pipe liners in a pipe, or at the juncture between a main and lateral pipe is provided. A first liner, which has been impregnated or otherwise coated with a resinous material capable of curing and hardening, is positioned in a pipe about an area in need of repair. A second liner, also including the resinous material, is place in the same pipe, with a portion of the second liner overlapping a portion of the first liner. A sealing member, such as a hydrophilic or hydrophobic band or material, is placed between the two liners at the overlap to seal the connection of the two liners.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée

Abrégé

A method of providing a seal between pipe liners in a pipe, or at the juncture between a main and lateral pipe is provided. A first liner, which has been impregnated or otherwise coated with a resinous material capable of curing and hardening, is positioned in a pipe about an area in need of repair. A second liner, also including the resinous material, is place in the same pipe, with a portion of the second liner overlapping a portion of the first liner. A sealing member, such as a hydrophilic or hydrophobic band or material, is placed between the two liners at the overlap to seal the connection of the two liners.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 58/10 - Revêtements caractérisés par les matériaux utilisés de caoutchouc ou de matériaux plastiques
• F16L 58/18 - Protection des tuyaux ou des accessoires pour tuyaux contre la corrosion ou l'entartrage spécialement conçue pour les raccords de tuyaux

Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/162 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau

Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A liner assembly (10) and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member (12) and a lateral liner tube (14). A collar (16) disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A liner assembly and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member and a lateral liner tube. A collar disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.

Classes IPC  ?

• B29C 73/00 - Réparation d'articles faits de matières plastiques ou de substances à l'état plastique, p. ex. d'objets façonnés ou fabriqués par utilisation de techniques couvertes par la présente sous-classe ou la sous-classe
• B32B 43/00 - Opérations spécialement adaptées aux produits stratifiés et non prévues ailleurs, p. ex. réparationAppareils pour ces opérations
• B65C 3/26 - Pose d'étiquettes sur des réceptacles non rigides, p. ex. des bouteilles en polyéthylène, sur des boîtes devant être gonflées par pression d'air interne avant l'étiquetage
• B65C 3/16 - Pose d'étiquettes sur des réceptacles courts et rigides sur le corps du réceptacle le réceptacle étant présenté pour l'étiquetage de manière à ce que la ligne médiane soit verticale en enroulant les étiquettes sur des réceptacles cylindriques, p. ex. des bouteilles
• B29C 65/00 - Assemblage d'éléments préformésAppareils à cet effet
• B32B 37/00 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons
• B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
• B29D 22/00 - Fabrication d'objets creux
• B29D 23/00 - Fabrication d'objets tubulaires
• B32B 1/08 - Produits tubulaires
• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A liner assembly (10) and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member (12) and a lateral liner tube (14). A collar (16) disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues

Abrégé

A new apparatus for repairing a damaged portion of a pipe includes a liner having a tubular sleeve of resin absorbent material that is capable of being stretched circumferentially and a plastic film laminated to an exterior surface of the sleeve. The plastic film contains resinous material in the liner until the liner is stretched circumferentially to thereby breech the integrity of the plastic film and expose the resinous material to a damaged section of pipe in need of repair. A method of lining a damaged section of pipe using the liner is also provided.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement

Abrégé

The present invention relates to a new liner for repairing a damaged portion of a pipe. A lining tube formed from a non-resin absorbent material has an exterior surface adapted to receive a curable resin and contact an interior wall of the pipe. The present invention also includes a main/lateral liner assembly for repairing the junction between main and lateral pipes using a non-resin absorbent liner for at least a portion of the lining.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage

Abrégé

The present invention includes a device and method for reinforcing the portions of an inflation bladder not contained by a liner in pipeline renewal applications. A liner/bladder assembly is provided wherein the liner is positioned relative to the bladder such that a portion of the bladder having a greater wall thickness extends beyond the ends of the liner. The present invention also includes a device and method for repairing the junction of a main pipe and the lateral pipe with bladders reinforced in areas unconstrained by the liners.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 58/16 - Protection des tuyaux ou des accessoires pour tuyaux contre la corrosion ou l'entartrage au moyen de revêtements internes ou externes le revêtement ayant la forme d'un bandage

Abrégé

The present invention includes a device and method for reinforcing the portions of an inflation bladder not contained by a liner in pipeline renewal applications. A liner/bladder assembly is provided wherein the liner is positioned relative to the bladder such that a portion of the bladder having a greater wall thickness extends beyond the ends of the liner. The present invention also includes a device and method for repairing the junction of a main pipe and the lateral pipe with bladders reinforced in areas unconstrained by the liners.

Classes IPC  ?

• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 58/16 - Protection des tuyaux ou des accessoires pour tuyaux contre la corrosion ou l'entartrage au moyen de revêtements internes ou externes le revêtement ayant la forme d'un bandage

Abrégé

The present invention includes a device and method for reinforcing the portions of an inflation bladder not contained by a liner in pipeline renewal applications. A liner/bladder assembly is provided wherein the liner is positioned relative to the bladder such that a portion of the bladder having a greater wall thickness extends beyond the ends of the liner. The present invention also includes a device and method for repairing the junction of a main pipe and the lateral pipe with bladders reinforced in areas unconstrained by the liners.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A liner tube (38, 40) (74) is provided for repairing either a single pipe line (70) or a main pipe line (50) having a lateral pipe line (52) connected thereto. The liner tube assembly includes a liner tube (38, 40) (74) impregnated with a liquid material capable of curing and hardening. The liner tube (38, 40) (74) includes a gasket (56) or band (62) positioned about the juncture of the pipe lines (50, 52). The gasket (56) or bands (62) (76) (78) form a tight seal between the liner tube (38) (40) (74) and the pipe line.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/18 - Accessoires de réparation des tuyaux

Abrégé

A liner tube (38, 40) (74) is provided for repairing either a single pipe line (70) or a main pipe line (50) having a lateral pipe line (52) connected thereto. The liner tube assembly includes a liner tube (38, 40) (74) impregnated with a liquid material capable of curing and hardening. The liner tube (38, 40) (74) includes a gasket (56) or band (62) positioned about the juncture of the pipe lines (50, 52). The gasket (56) or bands (62) (76) (78) form a tight seal between the liner tube (38) (40) (74) and the pipe line.

Classes IPC  ?

• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 58/10 - Revêtements caractérisés par les matériaux utilisés de caoutchouc ou de matériaux plastiques

Abrégé

A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A liner tube (38, 40) (74) is provided for repairing either a single pipe line (70) or a main pipe line (50) having a lateral pipe line (52) connected thereto. The liner tube assembly includes a liner tube (38, 40) (74) impregnated with a liquid material capable of curing and hardening. The liner tube (38, 40) (74) includes a gasket (56) or band (62) positioned about the juncture of the pipe lines (50, 52). The gasket (56) or bands (62) (76) (78) form a tight seal between the liner tube (38) (40) (74) and the pipe line.

Classes IPC  ?

• F16L 55/165 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau par introduction d'un tuyau dans la section endommagée
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/18 - Accessoires de réparation des tuyaux

Abrégé

A liner tube (38, 40) (74) is provided for repairing either a single pipe line (70) or a main pipe line (50) having a lateral pipe line (52) connected thereto. The liner tube assembly includes a liner tube (38, 40) (74) impregnated with a liquid material capable of curing and hardening. The liner tube (38, 40) (74) includes a gasket (56) or band (62) positioned about the juncture of the pipe lines (50, 52). The gasket (56) or bands (62) (76) (78) form a tight seal between the liner tube (38) (40) (74) and the pipe line.

Classes IPC  ?

• F16L 55/1645 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau un matériau d'étanchéité étant introduit à l'intérieur du tuyau au moyen d'un outil se déplaçant dans le tuyau

Abrégé

A liner tube (38, 40) (74) is provided for repairing either a single pipe line (70) or a main pipe line (50) having a lateral pipe line (52) connected thereto. The liner tube assembly includes a liner tube (38, 40) (74) impregnated with a liquid material capable of curing and hardening. The liner tube (38, 40) (74) includes a gasket (56) or band (62) positioned about the juncture of the pipe lines (50, 52). The gasket (56) or bands (62) (76) (78) form a tight seal between the liner tube (38) (40) (74) and the pipe line.

Classes IPC  ?

• F16L 55/1645 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau un matériau d'étanchéité étant introduit à l'intérieur du tuyau au moyen d'un outil se déplaçant dans le tuyau
• F16L 55/163 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches à partir de l'intérieur du tuyau une bague, une bande ou un manchon étant pressés contre la surface intérieure du tuyau
• F16L 55/179 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches spécialement adaptés pour coudes, ensembles de branchement, tuyaux de branchement ou éléments analogues
• F16L 55/18 - Accessoires de réparation des tuyaux
• F16L 58/10 - Revêtements caractérisés par les matériaux utilisés de caoutchouc ou de matériaux plastiques

Abrégé

The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior of the pipe line.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangible connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement

Abrégé

A lining apparatus and method is provided that obviates the need for a bladder to press the liner against the host pipe. The lining apparatus may include an extension tube sealed to the liner at one of its ends with an inversion mechanism attached to the other end of the liner for inverting the liner to its desired position within the pipe to be repaired. The lining apparatus can also avoid the use of an extension tube by temporarily closing the liner during the inversion process so that the liner can be inflated when pressurized by a fluid and then sealing an open end of the liner after it has been inverted into the pipe.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches

Abrégé

A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Classes IPC  ?

• F16L 55/16 - Dispositifs pour aveugler les fuites dans les tuyaux ou manches
• B29C 63/36 - Garnissage ou gainage de surfaces internes avec des couches ou des gainages tubulaires par retournement