Disclosed is a device for sealing a leak in a pipe or reservoir wall having an opening, comprising an elastomer plate applied to the wall at the site of the opening, a force applicator and a force distributor applied to the elastomer plate and means for applying a clamping torque to the force applicator. According to the main features of the invention, the force distributor has an inner face intended to be placed onto the elastomer plate, the inner face having an active zone corresponding to a protuberance and an inactive zone situated around the protuberance, in such a way that, when the clamping torque is applied to the force applicator, the active zone generates a pressure on the elastomer plate greater than the pressure generated by the inactive zone of the distributor on the elastomer plate.
F16L 55/17 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
2.
SEALING DEVICE FOR PLUGGING A LEAK IN THE WALL OF A PIPE OR OF A TANK COMPRISING A PART FOR DRILLING AND A PART FOR TAPPING AND SEALING METHOD
The invention relates to a sealing device with a longitudinal axis for plugging a leak in the wall of a pipe or tank, further comprising a drive means at one end, a plug and a tap. According to the main features, at its other end the device comprises a drilling head suitable for drilling a cylindrical hole in the thickness of the wall at the location of the leak, the plug comprises a thread and a thread runout chamfer on which the thread ends, the end of the thread extending to a clearance groove and a smooth upper chamfer suitable for deforming the thread at the end of internal thread, the hole being intended to be sealed by the plug.
The invention relates to a sealing device with a longitudinal axis for plugging a leak in the wall of a pipe or tank, further comprising a drive means at one end, a plug and a tap. According to the main features, at its other end the device comprises a drilling head suitable for drilling a cylindrical hole in the thickness of the wall at the location of the leak, the plug comprises a thread and a thread runout chamfer on which the thread ends, the end of the thread extending to a clearance groove and a smooth upper chamfer suitable for deforming the thread at the end of internal thread, the hole being intended to be sealed by the plug.
The invention also relates to a method for sealing a leak in the wall of a pipe or tank.
Device (10, 100) for sealing a leak in a pipe or reservoir wall (70) having an opening (80), comprising an elastomer plate (40) applied to the wall at the site of the opening, a force applicator (12, 14, 16, 50) and a force distributor (20) applied to the elastomer plate and means for applying a clamping torque to the force applicator. According to the main features of the invention, the force distributor (20) has an inner face (28) intended to be placed onto the elastomer plate (40), the inner face having an active zone corresponding to a protuberance (25) and an inactive zone situated around the protuberance, in such a way that, when the clamping torque is applied to the force applicator, the active zone generates a pressure on the elastomer plate greater than the pressure generated by the inactive zone of the distributor (20) on the elastomer plate.
F16L 55/17 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
4.
SEALING DEVICE FOR PLUGGING A LEAK IN THE WALL OF A PIPE OR OF A TANK COMPRISING A PART FOR DRILLING AND A PART FOR TAPPING AND SEALING METHOD
The invention relates to a sealing device (10, 100) with a longitudinal axis (Z, Z') for plugging a leak (60) in the wall (50) of a pipe or of a tank, further comprising a driving means (12) at one end, a plug (14) and a tap (26). According to the main features, at its other end the device comprises a drilling head (28) suitable for drilling a cylindrical hole (52) in the thickness of the wall (50) at the location of the leak (60), the plug comprises a thread (24) and an end-of-thread chamfer (23) on which the thread (24) ends, the end of the thread extending to a clearance groove (13) and a smooth upper chamfer (21) suitable for deforming the thread (52) at the end of tapping (54), the hole (52) being intended to be plugged by the plug (14) in a sealed manner. The invention also relates to a method for sealing a leak (60) in the wall (50) of a pipe or of a tank.
means for reversing the direction of translation movement of the carriage so that, at each change of direction, the carriage moves in a direction opposite to the previous one and a layer of reinforcing strip is wound around the pipe, overlapping the previous layer. The means for translating the carriage include a conveying chain and the reversing means are actuated automatically without the intervention of an operator.
F16L 55/18 - Appliances for use in repairing pipes
B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material
B29C 63/10 - 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 around tubular articles
F16L 1/26 - Repairing or joining pipes on or under water
F16L 55/168 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
B29C 53/70 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels with rotatable winding feed member and moving axially
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 63/06 - 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 around tubular articles
The invention relates to a winding device (10) for winding a reinforcing strip onto a repair length on either side of a portion to be repaired (61) of a pipe (60) comprising: - a carriage (20) rigidly connected to a reel holder (30), - a reel of reinforcing strip (32) wound onto said reel holder, - means for rotating said carriage (65, 15, 67, 17, 12, 13) about the circumference of said pipe and means for translating (20, 40) same along the longitudinal axis of said pipe so that said strip is wound around said pipe forming a helix, - means (34, 36) for reversing the sense of translation of said carriage so that with each change of sense, said carriage moves in a direction in the opposite sense to the above, and a layer of reinforcing strip is wound around said pipe by being superimposed on the preceding layer, and wherein - the means for translating said carriage also comprise a conveyor chain (40) comprising two strands moving between a first pinion and a second pinion in directions with opposite senses, mobile means for attaching said carriage to said chain being suitable for engaging with said strands of the chain, - and in that said reversing means move the mobile attachment means of said carriage from one strand to the other strand and vice-versa, so that when one of the mobile attachment means is detached from one strand, the other mobile attachment means engages with the other strand, said reversing means thus being actuated automatically during the rotation of said carriage around said pipe.
F16L 55/168 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material
B29C 63/10 - 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 around tubular articles
B29C 63/14 - 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 around tubular articles
F16L 55/18 - Appliances for use in repairing pipes
F16L 1/26 - Repairing or joining pipes on or under water
7.
Reinforcement strip for repairing fluid transport pipes
A reinforcement strip (20) suitable for repairing a fluid transport pipe (10) during which the strip is wound, under traction, around the portion of the pipe where the repair needs to be made at the same time that a crosslinking resin is applied to the strip in such a way as to form a sleeve around the portion to be repaired. The reinforcement strip includes at least one integrated metal wire, the electrical properties of the wire being used for operations including crosslinking the resin, detecting the portion of the pipe that includes the sleeve or detecting repaired portions of the pipe that have increased in diameter due to a thinning of the wall of the pipe.
F16L 55/16 - Devices for covering leaks in pipes or hoses, e.g. hose-menders
F16L 53/00 - Heating of pipes or pipe systemsCooling of pipes or pipe systems
F16L 58/16 - Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings the coating being in the form of a bandage
G01B 7/02 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
A retaining plate (30) made from a rigid material having tips on each of the two faces of same, the tips of each of the faces of a length of between 1 and 3 mm making an angle in the forward direction with the face of between 30° and 60°. The retaining plate is secured by the tips of one of the faces of same at the final end (28) of a first reinforcing strip (26) already positioned on the degraded portion of a pipe, and secured to the initial end (32) of a second reinforcing strip to be wound following the first reinforcing strip by the tips of the other face, said tips being tilted towards the initial end (32) of the second reinforcing strip.
F16L 55/16 - Devices for covering leaks in pipes or hoses, e.g. hose-menders
F16L 55/168 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
F16L 58/16 - Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings the coating being in the form of a bandage
A coating applied to the base of an embedded metal support (16) intended to protect the support, in particular against corrosion caused by water ingress and comprising a first epoxy resin layer formed from a first part (18) covering the material in which said support is embedded and a second part (20) covering the base of said support, and at least a second elastomeric resin layer entirely covering said first layer, intended to protect said first layer at least against UV radiation. Preferably, a seal that has the function of preventing water ingress at the embedding location is applied at the intersection between the first part (18) and the second part (20) of the first layer.
B05D 7/14 - 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 metal, e.g. car bodies
B05D 7/00 - 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
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 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
A device for local repair or strengthening of an elongate body (35) exhibiting a change in its integrity, by winding one or more layers of tape around the elongate body, comprises: - two half rings (31, 32) each having two ends configured to come into contact with each other, - means for displacing the two half rings with respect to each other until they surround, without touching, the elongate body and - means for displacing the two half rings with respect to each other in translation along an axis perpendicular to the axis of the elongate body until the ends of the half rings are in contact to form a ring surrounding the elongate body. In the embodiments, the device comprises, on at least one of the half rings, at least one centring pin (34), corresponding with an opening (33) in the other half ring, having a shape complimentary to the shape of said centring pin.
B29C 63/10 - 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 around tubular articles
F16L 55/168 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
A device for displacement of a tool with respect to an elongate body (35), comprises: - a driving means for rotating the tool around the elongate body, - a driving means for translating the tool parallel to the axis of the elongate body, and - a connecting means between the driving means, configured to move the tool in a helical path with respect to the external surface of the elongate body. In the embodiments, the connecting means comprises: - a toothed wheel (51) fixed with respect to the elongate body on which is engaged a mobile toothed wheel (53) rigidly attached to a worm drive (55), the axis of the mobile toothed wheel being rotated around the elongate body by the rotation driving means and - a support for the tool displaced parallel to the axis of the elongate body by rotation of the worm drive.
B29C 63/10 - 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 around tubular articles
F16L 55/168 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
A retaining plate (30) made from a rigid material comprising tips on each of the two faces of same, the tips of each of the faces of a length of between 1 and 3 mm making an angle in the forward direction with the face of between 30° and 60°. The retaining plate is secured by the tips of one of the faces of same at the final end (28) of a first reinforcing strip (26) already positioned on the degraded portion of a pipe, and secured to the initial end (32) of a second reinforcing strip to be wound following the first reinforcing strip by the tips of the other face, said tips being tilted towards the initial end (32) of said second reinforcing strip.
F16L 58/16 - Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings the coating being in the form of a bandage
A reinforcement strip (20) suitable for repairing a fluid transport pipe (10) during which the strip is wound, under traction, around the portion of the pipe where the repair needs to be made at the same time that a crosslinking resin is applied to the strip in such a way as to form a sleeve around the portion to be repaired. The reinforcement strip comprises at least one integrated metal wire, the electrical properties of the wire being used for operations comprising crosslinking the resin, detecting the portion of the pipe that comprises the sleeve or detecting repaired portions of the pipe that have increased in diameter due to a thinning of the wall of the pipe.
F16L 53/00 - Heating of pipes or pipe systemsCooling of pipes or pipe systems
F16L 58/16 - Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings the coating being in the form of a bandage
G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
G01B 7/02 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
A device (10) for protecting a mechanical part (20) against damage, in particular corrosion, said mechanical part bearing on a support (22), or being under pressure as a result of weight, in particular, including a flexible area (12) designed to be in direct contact with the mechanical part and at least one row of rectilinear pads (14) designed to be in direct contact with the support, said row comprising a plurality of pads (14-1, 14-2, 14-3) rigidly connected to the flexible area and more rigid than the flexible area. Preferably, the pads are rectangular in shape.
F16L 57/06 - Protection of pipes or objects of similar shape against external or internal damage or wear against wear
F16L 3/18 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in axial direction
The present invention concerns a device (110) and a method for locally repairing or reinforcing an elongate body (100), said device (110) being intended for winding one or a plurality of layers of a pre-impregnated polymerisable strip around the elongate body (100), said device (110) comprising: - releasable means (112, 113) of attachment around the elongate body (100), - means for the rotational movement of a support structure (125) around the means (112, 113) of attachment, - means for the longitudinal movement of a spool (135) of a pre-impregnated polymerisable strip relative to the support structure (125), said support (125) comprising means for limiting the movement of the spool to a predetermined path, said spool (135) being unwindable when it is subjected to a given tension, - means for bringing the spool (135) into rotational and translational movement around the elongate body (100), causing the pre-impregnated polymerisable strip to be wound around said body.
F16L 55/168 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
B29C 63/10 - 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 around tubular articles
A device for sealing a leak in a pipe (10) having at least one hole or crack (12), including an elastomer plate (14) applied to the leak site by a force distributor (16), and a tightening strap (20, 22) arranged around the pipe in order to apply a force onto the force distributor. The force distributor includes a support grid and separate force modules, each of the modules being placed so as to be slidable in one of the units of the grid and arranged perpendicular to the pipe so as to apply shear forces to the elastomer plate at the leak site, forcing the elastomer to deform so as to closely match the concave or convex shape of the pipe at the leak site and thus to seal the hole or crack.
F16L 55/16 - Devices for covering leaks in pipes or hoses, e.g. hose-menders
F16L 55/172 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
17.
METHOD FOR REINFORCING A PYLON, IN PARTICULAR FOR SUPPORTING CATENARIES, AND PYLON THUS REINFORCED
SOCIETE NATIONALE DES CHEMINS DE FER FRANCAIS SNCF (France)
Inventor
Machet, Alexandre
Mentel, Jean-Paul
Slimani, Hacen
Boulet D'Auria, Stanislas
Abstract
The invention relates to a repair method which applies to a pylon having an H-shaped cross-section (1), in particular for supporting catenaries, having at least one embrittled portion. Two substantially box-shaped metal inserts (7b) are placed opposite one another on either side of the core of the H, as well as two metal plates on each wing (3a, 3b) of the H, and said two inserts (7b) and said two metal plates (9a, 9b) are simultaneously attached by means of at least of one strip of composite material (11) having a self-hardening resin matrix.
The invention relates to a device for sealing a leak in a pipe (10) having at least one hole or crack (12), including an elastomer plate (14) applied to the site of the leak by a force distributor (16), and a tightening strap (20, 22) arranged around the pipe in order to apply a force onto the force distributor. The force distributor consists of a support grid and separate force modules, each of the modules being placed so as to be slidable in one of the units of the grid and arranged perpendicular to the pipe so as to apply shear forces to the elastomer plate at the site of the leak, forcing the elastomer to deform so as to closely match the concave or convex shape of the pipe at the site of the leak and thus to seal the hole or crack.
F16L 55/172 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
patents
