Self-propelled, self-powered, propulsion devices as part of pipe lining system adapted to create an internal liner member on a pipe or other tubular structure, the system being the combination of a sprayer apparatus, an umbilical member connected to the sprayer apparatus, wherein the umbilical member supplies no power or communications to the propulsion devices, and a plurality of propulsion devices mounted externally onto the umbilical member in a removable manner. The spraying apparatus and propulsion devices are independently powered and controlled such that each may be accelerated or decelerated as required to maintain the sprayer apparatus at a constant speed during the application process.
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
F16L 55/164 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing fluid being introduced in the pipe
B05B 13/04 - Means for supporting workArrangement or mounting of spray headsAdaptation or arrangement of means for feeding work the spray heads being moved during operation
F16L 55/162 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
F16L 58/02 - Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
2.
Inverted filament winder for pipeline rehabilitation
A pipe lining apparatus having a pressure sensitive adhesive backed reinforcement filament that is helically wound onto the inner surface of a pipe or pipe lining by an inverted filament winding apparatus, the apparatus having multiple spools and applicator arms to retain and apply the filament. The applicator arms may be aligned circumferentially or axially.
E03F 3/06 - Methods of, or installations for, laying sewer pipes
F16L 1/26 - Repairing or joining pipes on or under water
F16L 55/165 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe being inserted in the damaged section
F16L 55/10 - Means for stopping flow in pipes or hoses
B65H 49/00 - Unwinding or paying-out filamentary materialSupporting, storing, or transporting packages from which filamentary material is to be withdrawn or paid-out
A pipe lining having at least two material layers, a first elastomeric layer spray applied directly to the inside of a pipe which acts as a hydrophobic, ductile membrane, and a second rigid layer is spray applied to the first layer prior to complete curing of the first layer. One or more additional layers may be applied to the second layer to provide additional abrasion, erosion or chemical resistance to the second layer. An intermediate reinforcing layer may be disposed between the first and second layers. The first layer cures into a closed cell elastomeric foam, such that stress and other forces are not passed from the pipe to the rigid second layer.
A pipe lining apparatus transport assembly having one or more positioning mechanisms for maintaining the orbiting operational components of the pipe lining apparatus in a concentric relationship with the pipe, the positioning mechanisms including alone or in combination extension/retraction mechanisms, track set rotational mechanisms, articulating joint mechanisms and/or linear translation mechanisms.
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
F16L 55/18 - Appliances for use in repairing pipes
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
F16L 55/164 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing fluid being introduced in the pipe
B05C 7/02 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work the liquid or other fluent material being projected
F16L 101/16 - Coating by application of fluent materials, e.g. painting
A material casting assembly for a pipe lining apparatus, the assembly having a housing mounted onto an extension/retraction arm and containing an impingement block controlled by an impingement valve, and a static auger bounded by a rotating cylinder which defines a mixing path to an extrusion chamber. The rotating cylinder has exit ports through which lining material is expelled from the extrusion chamber onto a pipe wall.
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
F16L 55/18 - Appliances for use in repairing pipes
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
F16L 55/164 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing fluid being introduced in the pipe
F16L 101/16 - Coating by application of fluent materials, e.g. painting
A pipe lining apparatus transport assembly having one or more positioning mechanisms for maintaining the orbiting operational components of the pipe lining apparatus in a concentric relationship with the pipe, the positioning mechanisms including alone or in combination extension/retraction mechanisms, track set rotational mechanisms, articulating joint mechanisms and/or linear translation mechanisms.
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
B05C 7/00 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
B29C 63/32 - Lining or sheathing of internal surfaces using sheet or web-like material by winding helically
B29C 63/34 - Lining or sheathing of internal surfaces using tubular layer or sheathings
F16L 55/162 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
A material casting assembly for a pipe lining apparatus, the assembly having a housing mounted onto an extension/retraction arm and containing an impingement block controlled by an impingement valve, and a static auger bounded by a rotating cylinder which defines a mixing path to an extrusion chamber. The rotating cylinder has exit ports through which lining material is expelled from the extrusion chamber onto a pipe wall.
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
F16L 55/16 - Devices for covering leaks in pipes or hoses, e.g. hose-menders
F16L 55/00 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems
B05C 5/00 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
A pipe lining apparatus umbilical supply train system having a pipe lining apparatus adapted to apply lining material to the interior of a pipe, a plurality of lining material supply tanks adapted to contain lining material; and an umbilical member connecting the lining material supply tanks to each other and to the pipe lining apparatus, whereby lining material retained within the lining material supply tanks is delivered through the umbilical member to the pipe lining apparatus.
B05C 7/08 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work for applying liquids or other fluent materials to the inside of tubes
B05B 13/00 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
B05B 15/00 - Details of spraying plant or spraying apparatus not otherwise provided forAccessories
B05C 7/06 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work
B25J 5/00 - Manipulators mounted on wheels or on carriages
9.
Internal pipe lining system having self-propelled, self-powered propulsion devices
Self-propelled, self-powered, propulsion devices as part of pipe lining system adapted to create an internal liner member on a pipe or other tubular structure, the system being the combination of a sprayer apparatus, an umbilical member connected to the sprayer apparatus, wherein the umbilical member supplies no power or communications to the propulsion devices, and a plurality of propulsion devices mounted externally onto the umbilical member in a removable manner. The spraying apparatus and propulsion devices are independently powered and controlled such that each may be accelerated or decelerated as required to maintain the sprayer apparatus at a constant speed during the application process.
F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
B05B 12/00 - Arrangements for controlling deliveryArrangements for controlling the spray area
F16L 55/18 - Appliances for use in repairing pipes
F16L 101/16 - Coating by application of fluent materials, e.g. painting
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
10.
Taping apparatus, system and method for pipe lining applications
A taping apparatus adapted to apply tape over voids on an interior pipe wall, the taping apparatus having a transport assembly adapted to move the apparatus through a pipe; and a rotatable taping assembly adapted to retain a roll of tape and apply the tape over a void on the interior wall of the pipe, the taping assembly comprising an extendable and tractable arm assembly and a tape applicator assembly.
A pipe lining apparatus having a resin-impregnated reinforcement filament that is helically wound onto the inner surface of a tubular first lining layer disposed within a pipe by an inverted filament winding apparatus, the apparatus having a spring-loaded, articulated frame which maintains an orbiting applicator assembly.
A method and device for measuring the thickness of a liner applied onto the inner wall of a pipe, the device comprising a sprayer assembly adapted to deposit a polymer resin onto the inner wall of a pipe to create a liner upon curing, the sprayer assembly being moved through the pipe. The sprayer assembly has a leading sensor assembly that measures the inner diameter of the pipe and trailing sensor assembly that measures the inner diameter of the liner. The trailing sensor assembly has a housing with windows through which sensor devices take readings, and a transparent film is disposed across the windows to protect the sensors from occluding contamination. The transparent film is advanced as the exposed portion of the film becomes excessively contaminated.
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
F16L 101/16 - Coating by application of fluent materials, e.g. painting
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
13.
Self-propelled internal pipe lining system having multiple propulsion devices
A self-propelled pipe lining system adapted to create an internal liner member on a pipe or other tubular structure, the system being the combination of a sprayer apparatus, an umbilical member connected to the sprayer apparatus and supplying the lining material, electrical power and communication, a plurality of propulsion devices mounted onto the umbilical member, and an accumulator reel for retaining the umbilical member. The spraying apparatus and propulsion devices are independently powered and controlled such that each may be accelerated or decelerated as required to maintain the sprayer apparatus at a constant speed during the application process. The propulsion devices are detachable from the umbilical member.
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
B05B 13/04 - Means for supporting workArrangement or mounting of spray headsAdaptation or arrangement of means for feeding work the spray heads being moved during operation
F16L 55/18 - Appliances for use in repairing pipes
F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
F16L 101/16 - Coating by application of fluent materials, e.g. painting
14.
Spinner assembly for applying lining materials in pipes
A spinner apparatus for applying lining material to the interior of a pipe, the spinner apparatus having a cylindrical material accelerator coaxially positioned about a distribution manifold, the distribution manifold having a plurality of equally spaced, radially oriented slots extending from an axial chamber that receives lining material, wherein lining material is extruded through the slots onto the interior of the material accelerator and slung onto the pipe interior in an annular pattern. Movement of the spinner apparatus along the pipe produces a tubular lining member.
B05C 11/10 - Storage, supply or control of liquid or other fluent materialRecovery of excess liquid or other fluent material
B05C 7/08 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work for applying liquids or other fluent materials to the inside of tubes
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
B05D 1/00 - Processes for applying liquids or other fluent materials
B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
B05D 7/22 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
B05C 7/02 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work the liquid or other fluent material being projected
A spinner apparatus for applying lining material to the interior of a pipe, the spinner apparatus having a cylindrical material accelerator coaxially positioned about a distribution manifold, the distribution manifold having a plurality of equally spaced, radially oriented slots extending from an axial chamber that receives lining material, wherein lining material is extruded through the slots onto the interior of the material accelerator and slung onto the pipe interior in an annular pattern. Movement of the spinner apparatus along the pipe produces a tubular lining member.
B32B 37/04 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B08B 9/055 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the cross-section of the pipes, e.g. pigs or moles
A self-propelled pipe lining system adapted to create an internal liner member on a pipe or other tubular structure, the system being the combination of a sprayer apparatus, an umbilical member connected to the sprayer apparatus and supplying the lining material, electrical power and communication, a plurality of propulsion devices mounted onto the umbilical member, and an accumulator reel for retaining the umbilical member. The spraying apparatus and propulsion devices are independently powered and controlled such that each may be accelerated or decelerated as required to maintain the sprayer apparatus at a constant speed during the application process. The propulsion devices are detachable from the umbilical member.
B05C 7/08 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work for applying liquids or other fluent materials to the inside of tubes
F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
F16L 55/30 - Constructional aspects of the propulsion means, e.g. towed by cables
F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
17.
INVERTED FILAMENT WINDER METHOD FOR PIPELINE REHABILITATION
A pipe lining apparatus and methodology having a UV-curable, resin-impregnated reinforcement filament that is helically wound onto the inner surface of a tubular first lining layer disposed within a pipe by an inverted filament winding apparatus, the apparatus having a UV light to initiate curing of the filament as it is applied to the lining layer so as to bond the filament to the lining layer and rigidify the filament. A rigid second layer is then applied onto the filament winding layer and the first lining layer.
A pipe lining apparatus having a UV-curable, resin-impregnated reinforcement filament that is helically wound onto the inner surface of a tubular first lining layer disposed within a pipe by an inverted filament winding apparatus, the apparatus having a UV light to initiate curing of the filament as it is applied to the lining layer so as to bond the filament to the lining layer and rigidify the filament.
A pipe lining apparatus having a resin-impregnated reinforcement filament that is helically wound onto the inner surface of a tubular first lining layer disposed within a pipe by an inverted filament winding apparatus, the apparatus having a spring-loaded, articulated frame which maintains an orbiting applicator assembly.
A SIPP spraying apparatus for applying a liner material to the inner wall of a pipe, the apparatus having a transport unit, an articulating neck, a spinner assembly, proximity sensors and a plurality of positioning assemblies, wherein the positioning assemblies adjust the position of the spinner assembly as the apparatus moves through the pipe so as to maintain the spinner assembly centered within the pipe.
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
B05C 11/10 - Storage, supply or control of liquid or other fluent materialRecovery of excess liquid or other fluent material
B05C 7/08 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work for applying liquids or other fluent materials to the inside of tubes
B29C 48/152 - Coating hollow articles the inner surfaces thereof
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
B05D 1/00 - Processes for applying liquids or other fluent materials
B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
B05D 7/22 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05C 7/02 - Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work the liquid or other fluent material being projected
A pipe lining apparatus having a settable, resin-impregnated reinforcement filament that is helically wound onto the inner surface of a pipe or pipe lining by an inverted filament winding apparatus, the apparatus having multiple spools and applicator arms to retain and apply the filament. The applicator arms may be aligned circumferentially or axially.
E03F 3/06 - Methods of, or installations for, laying sewer pipes
F16L 1/26 - Repairing or joining pipes on or under water
B29C 63/32 - Lining or sheathing of internal surfaces using sheet or web-like material by winding helically
B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material
B29C 73/04 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements
B29C 63/12 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding spirally
B29C 63/08 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically
F16L 55/18 - Appliances for use in repairing pipes
F16L 55/165 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe being inserted in the damaged section
22.
ARTICULATING NECK SPINNER ASSEMBLY FOR APPLYING LINING MATERIALS IN PIPES
A SIPP spraying apparatus for applying a liner material to the inner wall of a pipe, the apparatus having a transport unit, an articulating neck, a spinner assembly, proximity sensors and a plurality of positioning assemblies, wherein the positioning assemblies adjust the position of the spinner assembly as the apparatus moves through the pipe so as to maintain the spinner assembly centered within the pipe.
B05B 5/12 - Plant for applying liquids or other fluent materials to objects specially adapted for coating the interior of hollow bodies
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
F16L 55/16 - Devices for covering leaks in pipes or hoses, e.g. hose-menders
F16L 55/18 - Appliances for use in repairing pipes
F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
F16L 58/10 - Coatings characterised by the materials used by rubber or plastics
B05D 7/22 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
23.
PLUGGING APPARATUS, SYSTEM AND METHOD FOR PIPE LINING APPLICATIONS
A plugging apparatus adapted to plug service lateral openings in the interior of a pipe and a method of plugging service lateral openings, the plugging apparatus having a housing, transport mechanisms mounted to said housing, the transport mechanisms adapted to move the housing through a pipe having service lateral openings, a rotatable manipulator compartment mounted to the housing, the manipulator compartment containing a robotic arm assembly having a plug gripping assembly and an extension assembly; the housing retaining plugs and one or more plug loading actuators adapted to individually advance each of the plugs into the manipulator compartment and the plug gripping assembly, the extension assembly being adapted to extend a plug positioned in the plug gripping assembly radially from the manipulator compartment and into one of the service lateral openings in the pipe.
B08B 9/049 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes
E21B 23/14 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
F16L 55/1645 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
A taping apparatus adapted to apply tape over voids on an interior pipe wall, the taping apparatus having a transport assembly adapted to move the apparatus through a pipe; and a rotatable taping assembly adapted to retain a roll of tape and apply said tape over a void on the interior wall of the pipe, said taping assembly comprising an extendable and tractable arm assembly and a tape applicator assembly.
B05D 7/22 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
B29C 73/16 - Auto-repairing or self-sealing arrangements or agents
B65H 75/02 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans
F16L 55/16 - Devices for covering leaks in pipes or hoses, e.g. hose-menders
F16L 55/18 - Appliances for use in repairing pipes
F16L 59/10 - Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
25.
INVERTED FILAMENT WINDER FOR PIPELINE REHABILITATION
A pipe lining apparatus having a settable, resin-impregnated reinforcement filament that is helically wound onto the inner surface of a pipe or pipe lining by an inverted filament winding apparatus, the apparatus having multiple spools and applicator arms to retain and apply the filament. The applicator arms may be aligned circumferentially or axially.
F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
B29C 53/58 - Winding and joining, e.g. winding spirally helically
B29C 53/60 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
B29C 53/72 - Winding and joining, e.g. winding spirally helically using external forming surfaces
A pipe lining having at least two material layers, a first elastomeric layer spray applied directly to the inside of a pipe which acts as a hydrophobic, ductile membrane, and a second rigid layer is spray applied to the first layer prior to complete curing of the first layer. One or more additional layers may be applied to the second layer to provide additional abrasion, erosion or chemical resistance to the second layer. An intermediate reinforcing layer may be disposed between the first and second layers. The first layer cures into a closed cell elastomeric foam, such that stress and other forces are not passed from the pipe to the rigid second layer.
B32B 37/04 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
patents
