Abstract: A repair device for repairing a leaking section in a pipe includes a sealing member of resilient material which fully surrounds the leaking section. The sealing member includes first and second annular sealing faces arranged for sealing engagement with the pipe about a full circumference thereof on opposite sides of the leaking section, and an envelope section fully spanning between the first and second annular sealing faces. The envelope section, the first annular sealing face, and the second annular sealing face are formed of resilient sealing material integrally joined with one another A rigid housing surrounds the sealing member and a clamp compresses the sealing member between the rigid housing and the leaking section of the pipe about the full circumference.

Abstract: A segment for a rehabilitation pipe comprises an inner surface plate constituting an inner circumferential surface, and side plates and end plates provided upright on a peripheral edge of the inner surface plate. The plates are formed integrally from a plastic material and the segments are linked in a circumferential direction and in a pipe-length direction to install a segmental rehabilitation pipe inside an existing pipe. The end plates are provided with an insertion hole through which a linking member is inserted when the segments are linked in the circumferential direction, and provided separately from the insertion hole with an opening for passing therethrough a filler material injected into a space between the existing pipe and the rehabilitation pipe. The side plates are provided at upper edges thereof with notches for passing therethrough a filler material injected into the space between the existing pipe and the rehabilitation pipe.

Abstract: A fluid jacket concrete pipe system includes a concrete pipe enveloped by a fluid-filled jacket. The fluid-filled jacket includes an inner jacket wall, an outer jacket wall, and a first and second side wall interconnecting the inner jacket wall to the outer jacket wall. A fluid inlet is disposed on the outer jacket wall. The outer jacket wall has a thickness dependent on a diameter of the concrete pipe and an external loading of the fluid jacket concrete pipe system.

Abstract: A method and assembly for monitoring at least one condition outside of a containment device containing a gaseous or fluid substance and an inlet and outlet attached to the containment device. The method includes the steps of providing a monitoring system having a housing surrounding the containment device extending an inlet and outlet through openings in the housing; sealing the housing and sealing around the inlet and outlet so that a cavity internal to the housing is sealed from the exterior environment; providing at least one sensor located in the cavity between the containment device and the housing; connecting the sensor to a unit for monitoring the sensor; sensing at least one parameter indicative of a leak or potential leak of the containment device or attachment of the containment device to the inlet or outlet; and providing alerts of the leak or potential leak.

Abstract: A clamp assembly for repairing a leak caused by a hole in a pipe element. The claim assembly has first and second arcuate segments attachable to one another end to end, first and second adjustably tightenable connection members positioned at each end of the first and second segments to form first and second segment joints, first and second seals positionable between the segments and the pipe element on opposite sides of the hole, and first and second sealing plates positioned at the segment joints and positionable between the segments and the pipe element to form a seal at each segment joint.

Abstract: A segment for a rehabilitation pipe comprises an inner surface plate constituting an inner circumferential surface, and side plates and end plates provided upright on a peripheral edge of the inner surface plate. The plates are formed integrally from a plastic material and the segments are linked in a circumferential direction and in a pipe-length direction to install a segmental rehabilitation pipe inside an existing pipe. Each side plate is provided in the vicinity of the end plate with an opening used for a linking operation of the segments in the circumferential direction. It is possible to insert a linking member through the opening and readily link the segments in the circumferential direction. The opening formed in the side plate enables filler material injected into the space between the existing pipe and the segmental rehabilitation pipe to flow in or out through the opening.

Abstract: Interlocking bend limiter sections are substantially mirror images of each other and are joined to form an interlocking bend limiter segment without use of fasteners by engaging each other's interlocking ends. An interlocking bend limiter comprises a plurality of interlocking bend limiter segment secured at an end by an end piece. In alternative, related embodiments a repair system comprises one or more machinable length sections which function as chain clamps to repair a subsea pipeline while the subsea pipeline is still in service and which can comprise interlocking sections similar to bend limiter sections or which are locked in more traditional manners such as by using bolts or other fasteners.

Abstract: A protective seal, a protective seal kit, and a method for sealing a joint region between pipes are provided. The protective seal includes a first wrap, comprising a corrosion-resistant material, wrapped around a seal region, contacting the outer surface of the pipeline assembly. A second wrap, comprising a self-adhering fiberglass composite, wraps around the first wrap. The kit includes a flexible wrap fabricated, in part, from a corrosion-resistant material, and a second flexible wrap fabricated, in part, from a fiberglass cloth impregnated with a resinous pliable-plastic material. The method includes wrapping a corrosion-resistant, inner wrap around first and second pipes such that this wrap surrounds the joint region and adheres to the pipes. A fiberglass-composite outer wrap is wrapped around the inner wrap and the first and second pipes such that the outer wrap surrounds the inner wrap and adheres to the pipes. The outer wrap is cured.

Abstract: A disconnect transfer conduit comprising flexible tubing; a deformable sleeve surrounding a portion of the flexible tubing; wherein the sleeve is attached to the flexible tubing and is formed of a material having plasticity such that pressure applied to the sleeve causes the sleeve to deform about and seal the flexible tubing and upon continued application of pressure to the sleeve, the sleeve and flexible tubing are cut and the sleeve retains a deformed shape substantially sealing the tubing. Also provided is a method of sealing flexible tubing comprising applying pressure to a sleeve attached to flexible tubing to deform the sleeve and seal the tubing; wherein, applying further pressure to the sleeve to cut the sleeve and tubing, thereby leaving the tubing substantially sealed where cut.

Abstract: A method of repairing in situ a pipe or tank of thermo-fusible material, with a step for installing an electric heating element, the heating element including electrical conductors, and with a step for supplying said conductors with appropriate electric energy. The electrical conductors are supplied by a control panel set up prior to the repair and matching, for different thermo-fusible materials and different types of damage of the pipe or tank to be repaired, at least one technical characteristic of the pipe or tank, one characteristic of the electric energy to be applied and a profile of the application time of the electric energy.

Abstract: The present invention relates to a clamp that can be used for repairing a rupture in a pipe. The clamp includes a wrapping assembly comprising strapping that at least partially extends about the pipe, an adjustment device that is suitably in form of a claps for adjusting the effective length of the strapping about the pipe and a tensioning device that is suitably in the form an over center lever mechanism that is operable to place the wrapping assembly under different tensions.

Abstract: A system for repairing a pipe including a tool, a programmable logic controller and a patch. The tool includes a clamp base having an opening, a first jaw coupled to the clamp base with a first linkage, a second jaw coupled to the clamp base with a second linkage, an operating mechanism carried by the clamp base and operably coupled to the first and second jaws via one or more adjusting links and a junction box carried by the clamp base and operably connected to the controller, wherein the one or more adjusting links are coupled at a first end to either or both of the first and second jaws and at a second end to the operating mechanism, and wherein the first and second jaws are adapted to move, under force of the adjusting links. Methods of repairing pipes are disclosed.

Abstract: Disclosed herein is a repair apparatus and method for pipe and fittings. In one form, the method relates to utilizing fabric-like material which is intermixed with an adhesive. In one form, the adhesive is a two-part adhesive which hardens to a semi-rigid state to avoid stress fractures through repeated expansion and contraction due to physical movement or temperature variation in the pipe and/or fittings. In one form the method and apparatus are particularly useful in thermoplastic pipes. In other forms, the method is particularly useful in metal pipes and fittings, or in non-pipe structures.

Abstract: A reinforced pipe section comprises a metal pipe, a layer of dry fibers disposed around the metal pipe, and an external liner covering the layer of dry fibers. A method of manufacturing a reinforced pipe section comprises wrapping a layer of dry fibers over a metal pipe, and covering the layer of dry fibers with an external liner, thereby forming a first dry fiber wrapped metal pipe. A method of reinforcing a degraded metal pipe comprises wrapping the degraded metal pipe with a layer of dry fibers to increase the hoop strength of the degraded metal pipe, and covering the layer of dry fibers with an external liner.

Abstract: A repair process for a puncture through a plumbing pipe, the process initiates with a step of machining a puncture hole to a uniformly shaped hole having a diameter for receiving a repair rivet. The process continues by inserting and securing a blind rivet through the hole. The rivet can be sealed via any of a variety of methods, including using a solderable rivet and soldering the rivet to the pipe, utilizing a sealed blind rivet, combined with a gasket assembled between a rivet flange and the pipe surface. For two punctures, a section of coupling material can be utilized, sized to cover both punctures. The section is assembled to the pipe by inserting the rivet through both the section and the pipe, securing the rivet, then soldering the coupling to the pipe. A rivet end seal can be assembled to an end of a common blind rivet creating a watertight seal.

Abstract: A multi-layered patch including a backing layer, an outer layer, polymer adhesive layers that include a polymer foam and a solvent, and a heating layer that includes a polymer substrate, a heating element and a sensor, and methods of making and using the multi-layered patch.

Abstract: A snap fitting for use in plumbing is provided. The snap fitting includes a main body formed of plastic and shaped to extend partially around a cylindrical pipe to snap over the pipe and an inset for extending from an interior side of the main body into a hole in the cylindrical pipe.

Abstract: Around a damaged area of a jacket of a flexible tube, a top coat layer whose adhesion to a polymer layer is weak is peeled off with an adhesive tape. The damaged area and its immediate surrounding area are sanded, and then wiped with ethanol for cleaning. A main agent and a hardening agent are heated and defoamed while being mixed to prepare a repair material. The repair material is applied to the damaged area and the immediate surrounding area. A heat shrink tube is opened along slits in an end portion and covers the flexible tube. The heat shrink tube is shrunk with hot air, pressing the repair material and making it flush with a surface of the jacket. The flexible tube is heated with an electric hot plate to harden the repair material. Thereafter, the heat shrink tube is peeled off from the flexible tube.

Abstract: An arrestor for arresting an axial ductile propagating fracture in a pipeline transporting a high-energy fluid is made from a material such that the arrestor deforms sufficiently when encountering a propagating fracture that the propagating fracture continues at least under the arrestor but the arrestor has enough strength that it ceases the crack propagation without ring-off of the pipeline. The material is filled with fiber characterized by having a stress-strain curve that passes thru the ranges between about 25 and 200 ksi in stress, and a deformation ranging from between about 5% strain and 35% strain, and having a diameter ranging between about 0.002 and 0.020 inches.

Abstract: A closure means (10) for containing fluid leaking from a ruptured pipe (24). The closure means (10) fits over a ruptured pipe (24) to contain any fluid that may be leaking from the pipe (24). The closure means (10) forms an enclosed cavity around the rupture (78) in the pipe (24), the enclosed cavity being defined by a housing (12) of the pipe (24) and the pipe (24) itself. The closure means may comprise a single housing (12), or may comprise two housing (12, 14) members. Where a single housing (12) is used, the closure means may be applied as a patch to cover a rupture. In this embodiment, a fastening means (20) holds the housing (12) in sealed engagement with the pipe (24). Where two housing (12, 14) members are used, the closure means (20) may also comprise a hinged link (16) between the two housing members (12,14). In this embodiment, the fastening means (20) holds the two housing members (12, 14) together in sealed engagement around the pipe (24).

Abstract: A modular pipe repair enclosure system includes first and second enclosure portions, and an enclosure attachment device. The first and second enclosure portions create an enclosure around the pipe for covering leaks. The enclosure has three openings for accommodating the pipe. The first and second openings are arranged at an angle of 180 degrees with respect to each other, and at an angle of 90 degrees with respect to the third opening, such that a straight line section of pipe may be accommodated by the first and second openings, an elbow section of pipe by the first and third openings, and a T-section of pipe by the first, second, and third openings. The system may further include a blank, for closing one of the openings, for use with a straight or elbow section, and a sleeve, for reducing the inner diameter of an opening, for accommodating pipes of different diameters.

Abstract: The invention features an encapsulating device and system to contain a fluid or substance spilled during a blowout of a pipe at subsea level. The system features a semi-circular housing that fits underneath the flange of a pipe. A heater is provided inside the housing. The system features a tri-flange system having flanges on the top and sides of the housing. The side flanges are closed and sealed and then the top flange is closed. Side flanges divert pressure in the system. The system discloses arms and sealants to aid in sealing the pipe.

Abstract: A method and apparatus for modular pipe repair, the method comprising attaching two enclosure halves over a leak in a pipe to assemble a first repair enclosure and determining if another repair enclosure is needed for another leak in the pipe. If another repair enclosure is needed, the method further comprises drilling in the first repair enclosure drill hole passages in selected angled grooves thereof to connect to a primary groove in the enclosure, attaching a second repair enclosure to pipe, drilling in the second repair enclosure drill hole passages in selected angled grooves thereof to connect to the primary groove in the second enclosure, and attaching hub clamps to the first repair enclosure and the second repair enclosure. Finally, the method comprises injecting sealant into a plurality of injection points to fill the selected angled grooves and the primary grooves in the repair enclosures.

Abstract: A pipe-clamping tool (100) comprises a tool body (102) and first and second tool jaws (104, 106). The tool further comprises a bar (110) in threaded engagement with a portion of the tool body. One end of the bar engages with a boss (108) on a side of the first tool jaw opposite the curved surface thereof. The tool jaws may be closed and opened by rotation of a handwheel (112). The first tool jaw has projections (111A, 111B) which engage respective grooves (101A, 101B) on opposite sides of the tool body; together with the bar and boss, these inhibit rotation of the first tool jaw with respect to the tool body. The pipe-clamping tool may be used to stop a leak in a pipe by applying a layer of deformable material around the pipe and clamping it in place using the tool. The tool enables a substantially complete (360°) azimuthal seal around a pipe with only a single operation on the tool (i.e. rotation of the handwheel to close the tool jaws). The tool jaws remain mutually aligned as they are opened and closed.

Abstract: A system and method of repairing a pipe including securing a reinforcing material, such as a dry fiber structure (e.g., a carbon fibers) to the surface of the pipe. A polymeric material is placed on top of the reinforcing material, self-penetrating the dry fiber structure. The polymeric material substantially saturates the reinforcing material and cures to form a reinforced polymeric composite which may increase or restore the pressure rating or operating pressure capacity of the pipe. Optionally, an outer containment component, such as a sleeve, shell, box, wall, outer pipe, and so on, may be installed around the reinforcing material prior to introduction of the polymeric material. In this case, the polymeric material may be placed (i.e., poured) into the interior of the containment component on top of the reinforcing material.

Abstract: A repair assembly is provided for repairing a pipe that in one embodiment includes a layer of thermoplastic material substantially surrounding the pipe in an area needing repair; a heating element located to provide heat to the layer of thermoplastic material; and an overpress at least partially surrounding the pipe and the layer of thermoplastic material. The layer of thermoplastic material may be configured as a sleeve surrounding the pipe, and the sleeve may be configured in two semicylindrical halves with longitudinal seams where the semicylindrical halves meet. The seams extend generally parallel to a longitudinal axis of the pipe, and the sleeve may further include outwardly extending flanges along the edges of the semicylindrical halves at the seams.

Abstract: The present invention relates to a clamp that can be used for repairing a rupture in a pipe. The clamp includes a wrapping assembly comprising strapping that at least partially extends about the pipe, an adjustment device that is suitably in form of a claps for adjusting the effective length of the strapping about the pipe and a tensioning device that is suitably in the form an over centre lever mechanism that is operable to place the wrapping assembly under different tensions.

Abstract: Methods for repairing a defect in a pipeline. In some embodiments, the method includes filling the defect with a filler such that an outer surface of the defect is substantially flush with an adjacent outer surface of the pipeline, curing the filler, wrapping a reinforcing material around the pipeline over the defect region for a plurality of turns, coupling the reinforcing material to the pipeline, wherein a pressure load applied to an inner surface of the pipeline is transferred through the pipeline and the filler to the reinforcing material so as to increase a safe operating pressure of the pipeline, and electrically coupling the reinforcing material and the pipeline, whereby an electrical potential in the pipeline is transmitted to the reinforcing material.

Abstract: The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4?; 44, 44?; 64, 64?; 74, 74?; 84), which has two opposite ends and an opening (40, 40?) that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.

Abstract: Methods for repairing a defect in a pipeline. In some embodiments, the method includes filling the defect with a paste such that an outer surface of the defect is substantially flush with an adjacent outer surface of the pipeline, curing the paste, manually wrapping a reinforcing material around the pipeline over the defect region for a plurality of turns, coupling the reinforcing material to the pipeline, wherein a pressure load applied to an inner surface of the pipeline is transferred through the pipeline and the paste to the reinforcing material so as to increase a safe operating pressure of the pipeline, and electrically coupling the reinforcing material and the pipeline, whereby an electrical potential in the pipeline is transmitted to the reinforcing material.

Abstract: The invention relates to the control of leakage from ducts, such as fluid-carrying pipework, without necessarily requiring direct access to the leakage site itself; since leakage sites are often difficult to locate with the necessary degree of precision to permit access to reliably be made thereto, and moreover, even if a site can be located, it is not always convenient or economically possible to secure access thereto. The invention provides an apparatus and methods for duct leakage control wherein a sealing element (1) is introduced into the duct and is automatically drawn or otherwise guided to the locality of a leak; the element being caused, by reason of a pressure differential attributable to the leak, to move into and stem or seal the leak. The sealing element may comprise a plurality of individual members of differing buoyancy, each capable of being carried along at a predetermined level in the duct by the flow of fluid therein.

Abstract: The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4?; 44, 44?; 64, 64?; 74, 74?; 84), which has two opposite ends and an opening (40, 40?) that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.

Abstract: Disclosed herein is a repair apparatus and method for pipe and fittings. In one form, the method relates to utilizing fabric-like material which is intermixed with an adhesive. In one form, the adhesive is a two-part adhesive which hardens to a semi-rigid state to avoid stress fractures through repeated expansion and contraction due to physical movement or temperature variation in the pipe and/or fittings. In one form the method and apparatus are particularly useful in thermoplastic pipes. In other forms, the method is particularly useful in metal pipes and fittings, or in non-pipe structures.

Abstract: An apparatus for sealing a pipe having a defect or penetration comprises a housing coupled to the pipe by a clamp member. A piston is mounted in the housing and the piston and housing define a chamber. The piston further comprises a port for providing fluid communication between the pipe and the chamber. A seal member is provided between the piston and the pipe and, in use, the apparatus is located over and/or around the defect or penetration in the pipe such that the seal member engages the pipe. The piston is urged towards the pipe by a fluid pressure force generated by fluid in the pipe thereby maintain sealing engagement between the seal member and the pipe and to prevent leakage of fluid through the penetration.

Abstract: Patches consisting of transparent or translucent shape memory material can be manufactured so as to affect repair of transparent or translucent parts that have been damaged. These patches can be used to cover cracks and holes or provide additional structural support for the damaged parts. The patches can vary greatly in size and properties depending on the desired application.

Abstract: A repair process for a puncture through a plumbing pipe, the process initiates with a step of machining a puncture hole to a uniformly shaped hole having a diameter for receiving a repair rivet. The process continues by inserting and securing a blind rivet through the hole. The rivet can be sealed via any of a variety of methods, including using a solderable rivet and soldering the rivet to the pipe, utilizing a sealed blind rivet, combined with a gasket assembled between a rivet flange and the pipe surface. For two punctures, a section of coupling material can be utilized, sized to cover both punctures. The section is assembled to the pipe by inserting the rivet through both the section and the pipe, securing the rivet, then soldering the coupling to the pipe.

Abstract: A method for repairing a pipeline by means of at least one shell that is adapted to the outer contour of the pipeline, wherein the at least one shell is attached to the outer wall of the pipeline using an intermediate layer between the interior of the shell and the outer wall of the pipeline. The intermediate layer is made of an adhesive that can be activated, which is used to substantially completely coat the interior of the at least one shell. The attachment of the shell is carried out by applying a force acting at least in the radial direction, and the activation of the adhesive. A shell that is coated in this manner is also disclosed.

Abstract: A method of repairing a composite component having a damaged area including: laying a composite patch over the damaged area; activating the shape memory polymer resin to easily and quickly mold said patch to said damaged area; deactivating said shape memory polymer so that said composite patch retains the molded shape; and bonding said composite patch to said damaged part.

Abstract: An inexpensive method for quickly and safely sealing illicit taps in a pipe, such as for example a pipe through which a combustible material like oil or gasoline is flowing. The method first seals the valve outlet of the illicit tap with epoxy and removes the valve handle from the valve. Finally the entire tap including the valve and surrounding pipe area is wrapped with an epoxy impregnated material such as fiberglass or carbon composite fabric.

Abstract: Disclosed herein is a repair apparatus and method for pipe and fittings. In one form, the method relates to utilizing fabric-like material which is intermixed with an adhesive. In one form, the adhesive is a two-part adhesive which hardens to a semi-rigid state to avoid stress fractures through repeated expansion and contraction due to physical movement or temperature variation in the pipe and/or fittings. In one form the method and apparatus are particularly useful in thermoplastic pipes. In other forms, the method is particularly useful in metal pipes and fittings, or in non-pipe structures.

Abstract: The present invention provides an apparatus for repairing the outer sheath of a pipe, said apparatus comprising a sleeve (12) adapted to surround the pipe, sealing means (16) for establishing at least two circumferential seals between the surface of the pipe and means (17, 18) for forcing a sealing solution against the surface of the pipe between the two circumferential seals, the arrangement being such that in use the sleeve is spaced from the outer sheath of the pipe to form a sealed annulus therebetween and a method of repairing an outer sheath of a pipe, said method comprising the steps of mounting a sleeve over the pipe to provide an annulus therebetween, securing the sleeve in place around the pipe, providing two circumferential seals between the sleeve and the pipe and forcing a sealing solution against the surface of the pipe between the two circumferential seals to form a pressure seal between the circumferential seals and sealing the annulus between the pipe and the sleeve.

Abstract: A mountable traversing carriage for traversing a workpiece, method of traversing a workpiece, performing an operation on a workpiece and manufacturing a mountable traversing carriage is described. The carriage has first and second end plates coupled to first and second clamps for attaching the end plates to a workpiece, with a connector for connecting the first end plate to the second end plate. A mid plate is movably mounted to the connector and arranged between the first and second end plates. A saddle, having a third clamp, is mounted to the mid plate. The carriage is moved along the workpiece via a traversing device attached to one of the end plates for advancing the mid plate along the workpiece when the first and second clamps are engaged. The carriage advances the first and second end plates along the workpiece via the traversing device when the third clamp is engaged.

Abstract: A protective seal, a protective seal kit, and a method for sealing a joint region between pipes are provided. The protective seal includes a first wrap, comprising a corrosion-resistant material, wrapped around a seal region, contacting the outer surface of the pipeline assembly. A second wrap, comprising a self-adhering fiberglass composite, wraps around the first wrap. The kit includes a flexible wrap fabricated, in part, from a corrosion-resistant material, and a second flexible wrap fabricated, in part, from a fiberglass cloth impregnated with a resinous pliable-plastic material. The method includes wrapping a corrosion-resistant, inner wrap around first and second pipes such that this wrap surrounds the joint region and adheres to the pipes. A fiberglass-composite outer wrap is wrapped around the inner wrap and the first and second pipes such that the outer wrap surrounds the inner wrap and adheres to the pipes. The outer wrap is cured.

Abstract: A method for repairing and reinforcing a pipeline includes covering a defect in a pipeline section with a composite wrap, isolating the wrap from the ambient environment, and applying a compressive force on the wrap so that the pressure on the wrap is substantially equal to the pipeline pressure. Isolating the wrap involves the use of a housing having a cavity that substantially conforms to the shape of the wrapped section. The cavity may contain a pressurized gas or liquid. Because the pressure acting on the surface of the wrap is at least substantially equal to the pressure of the pipeline section, the wrap cures as if the pipeline is at zero pressure. Once the wrap has effectively cured, the compressive force may be relieved and the housing removed. The composite is now under load and is immediately sharing load with the pipeline.

Abstract: A pipe-clamping tool (100) comprises a tool body (102) and first and second tool jaws (104, 106). The tool further comprises a bar (110) in threaded engagement with a portion of the tool body. One end of the bar engages with a boss (108) on a side of the first tool jaw opposite the curved surface thereof. The tool jaws may be closed and opened by rotation of a handwheel (112). The first tool jaw has projections (111A, 111B) which engage respective grooves (101A, 101B) on opposite sides of the tool body; together with the bar and boss, these inhibit rotation of the first tool jaw with respect to the tool body. The pipe-clamping tool may be used to stop a leak in a pipe by applying a layer of deformable material around the pipe and clamping it in place using the tool. The tool enables a substantially complete (360°) azimuthal seal around a pipe with only a single operation on the tool (i.e. rotation of the handwheel to close the tool jaws). The tool jaws remain mutually aligned as they are opened and closed.

Abstract: The present invention is a composite laminated sheet material suitable for structures such as containment sumps. The laminated material comprises a fabric-backed thermoplastic layer upon which thermoset plastic is applied to the fabric side. The thermoplastic layer is formed by contacting a layer of fabric onto a layer of molten thermoplastic such that the liquid thermoplastic permeates a portion of the fabric layer to form a mechanical bond with the fabric layer when the thermoplastic layer cools and hardens. Thermoset plastic, such as fibreglass resin, is sprayed onto the fabric side of the thermoplastic layer to allow the liquid resin to permeate the fabric layer. Once the resin cures and hardens, the fabric layer is mechanically bonded to the cured thermoset plastic layer to effectively bond the thermoplastic layer to the thermoset plastic layer.

Abstract: The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4?; 44, 44?; 64, 64?; 74, 74?; 84), which has two opposite ends and an opening (40, 40?) that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.

Abstract: A method for repairing a pipeline by means of at least one shell that is adapted to the outer contour of the pipeline, wherein the at least one shell is attached to the outer wall of the pipeline using an intermediate layer between the interior of the shell and the outer wall of the pipeline. The intermediate layer is made of an adhesive that can be activated, which is used to substantially completely coat the interior of the at least one shell. The attachment of the shell is carried out by applying a force acting at least in the radial direction, and the activation of the adhesive. A shell that is coated in this manner is also disclosed.

Abstract: Disclosed herein is a repair apparatus and method for pipe and fittings. In one form, the method relates to utilizing fabric-like material which is intermixed with an adhesive. In one form, the adhesive is a two-part adhesive which hardens to a semi-rigid state to avoid stress fractures through repeated expansion and contraction due to physical movement or temperature variation in the pipe and/or fittings. In one form the method and apparatus are particularly useful in thermoplastic pipes. In other forms, the method is particularly useful in metal pipes and fittings, or in non-pipe structures.

Abstract: A composite plug system and a process to repair a hole in a tubular pipe. The process includes the steps of inserting a fastener through an opening in an oblong inner plate having an elongated diameter and a shorter diameter. The oblong plate is inserted into the pipe hole wherein the elongated diameter is greater than a diameter of the pipe hole and wherein the shorter diameter is less than the pipe hole diameter so that the oblong plate is within the tubular pipe beneath the hole. An initially liquid adhesive filler is applied over the oblong inner plate over the pipe hole. An outer plate having a central opening and a diameter larger than the pipe hole diameter is affixed over the pipe hole so that the central opening receives the fastener. The outer plate is secured to the oblong inner plate and the tubular pipe with the fastener until the adhesive filler solidifies. After the filler solidifies, the oblong plate and the outer plate are structurally bonded to the pipe wall through adhesion.