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| Number | Title | Issue Date |
| 7854449 | Composite laminated sheet material for containment sumps 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 ... | 12/21/2010 |
| 7523962 | Connection between a wall and a pipe A fitting for providing a substantially fluid-tight seal between an opening in a chamber wall and a pipe passing through the opening, the fitting including a tubular sleeve adapted to pass through the opening in the chamber wall and further adapted to allow the pipe... | 04/28/2009 |
| 7490861 | Couplings An electrofusion coupling for joining together two or more sections of pipe or for joining a section of pipe and a pipework fitting, said coupling comprising: (i) a first part (14) having a first internal diameter at a first end adapted to form a tight slidin... | 02/17/2009 |
| 7385163 | Fuel tank assembly and method of assembly A method is provided for attaching a component to a fuel tank having a wall defining a tank cavity, an inner surface, an outer surface, and an access opening extending through the wall. The component is placed in contact with the inner surface of the fuel tank. The ... | 06/10/2008 |
| 7338085 | Fusion-bonded processed product of resin member, method for producing same and method for fusion-bonding resin members When resin members (3, 4) are fusion-bonded to each other by electric-conduction heating, a net-form or pattern-form metal wire (2) as a resistance heating element is disposed at a joint portion of the resin members (3, 4), and a metal wire (... | 03/04/2008 |
| 7328493 | Self restrained fitting for PVC and ductile iron pipe A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. The restraint system includes both a sealing ring and a combination gripping ring which... | 02/12/2008 |
| 7322922 | Method and device for jointing of cores End-to-end joining of sleeves. A first glue strand is applied to the end joint surface of one of the sleeves, the first glue strand having properties that cause an immediate fixing of the end joint surfaces of the sleeves. A second glue strand is applied to the end ... | 01/29/2008 |
| 7316427 | Hollow plastic product having a connector pipe A hollow plastic product including a hollow main body, a reinforce member and a connector pipe is provided. Such a hollow plastic product is, for example, used advantageously as a component of an air-intake system or fuel supply system of an automobile. In one examp... | 01/08/2008 |
| 7316269 | Enclosed radial wire-line cable conveying method and apparatus A relatively light weight radial wire-line conveyance mechanism capable of sustained high pressure incorporated into a wire-line riser set-up and configured to allow multiple radial bends without sheaves. The conveyance mechanism includes a segmented tubular body st... | 01/08/2008 |
| 7264279 | Segmented conduit having a monolithic lining A conduit (100) comprising a plurality of conduit segments (112A–112C) each having a body (120A–120C) and a segment lining (136A–136C) made of a lining material. Each body includes a joint face (132A– | 09/04/2007 |
| 7226649 | Laser weldable flexible medical tubings, films and assemblies thereof The present invention provides a tubing assembly having a sidewall having a first layer. The first layer is fabricated from a first polymer blend comprising a first component of a material not thermally responsive to laser beam and selected from the group consisting... | 06/05/2007 |
| 7207601 | Electrofusion coupling particularly useful for coupling plastic pipes An electrofusion coupling for coupling a first device to a second device, includes a first part having an outer end for coupling to the first device, and an inner end formed with a surface of a curved configuration; and a second part having an end engaging the inner... | 04/24/2007 |
| 7204520 | Device for joining components made of fusible plastic A device for connecting components (1, 2, 3) made of fusible plastic, especially pipes (12, 60) of a fuel pipeline or a fuel line to a fuel tank (8) of a vehicle. The device includes a heating element (4) having ends (44, 46) which... | 04/17/2007 |
| 7156423 | Plastic tube joint A connector assembly for creating a plastic tube joint in a length of plastic tubing having a distal end, a proximal end and a hollow lumen includes forming a flare in the tube proximate the proximal end thereof by means of a flared ferrule disposed in the lumen and... | 01/02/2007 |
| 7144045 | Electrofusion socket forming system An electrofusion joint assembly includes a meltable member, such as a pipe or fitting, and a heating element secured to the pipe or fitting. The pipe or fitting may be tapered to facilitate receiving another pipe to form an electrofusion weld joint. Fasteners are us... | 12/05/2006 |
| 7125054 | Self restraining gasket and pipe joint A sealing and restraining gasket for preventing separation of a pipe joint used to join a bell end of a female pipe to the male end of a mating pipe. The gasket is formed from a compressible body of elastomeric material and carries a rigid ring with gripping teeth f... | 10/24/2006 |
| 7067032 | Tubular coupling element for producing a glued joint with a fluid line A tubular coupling element for producing a glued joint with a fluid line and a method for producing such a glued joint. The coupling element includes an inner tube that is insertable into a fluid line and an outer tube that is constructed concentric to the inner tub... | 06/27/2006 |
| 7044221 | Apparatus for coupling a tubular member to a preexisting structure An apparatus for coupling a tubular member to a preexisting structure. ... | 05/16/2006 |
| 7025388 | Method and apparatus for forming leak-proof coupling for beverage distribution system A method and apparatus is provided for forming a leak proof coupling between two thin walled metallic ends in a beverage distribution system. The pipe ends are prepared by cutting the ends and ensuring that the cross-section of the ends are round. An alignment devic... | 04/11/2006 |
| 7017951 | Strengthened pipe fitting having encapsulated reenforcing collar A strengthened pipe fitting has an internally threaded surface and a compression band. The compression band is sized to compress the internally threaded surface sufficiently so that the pipe fitting is subjected to a compressive preload. The compression band is cove... | 03/28/2006 |
| 6979025 | Joining of lined pipes A metal pipeline section that has a metal flange at one end is lined with a plastic liner such that some of the liner extends beyond the flange end of the pipeline section. An annular plastic member is electrofusion joined onto the outside of the portion of plastic ... | 12/27/2005 |
| 6974160 | Self restraining gasket and pipe joint A restraining element for preventing separation of a pipe joint used to join a bell end of a female plastic pipe to the male end of a mating pipe. The restraining element is formed from a compressible body of elastomeric material, the compressible body having a segm... | 12/13/2005 |
| 6883835 | Polyfusion pipe repair system and method An apparatus and method for sealing a leak in a plastic pipe is provided. The apparatus includes a body and an electrofusion element. The body is constructed of a substantially rigid material and has an upper surface and a lower surface. The lower surface is adapted... | 04/26/2005 |
| 6840545 | Welded flange connection A welded flange connection and methods and apparatus for producing the connection are disclosed. A weld insert is disposed between the flared ends of abutted plastic pipe or plastic-lined pipe sections. The weld insert includes an annular support disc having a resis... | 01/11/2005 |
| 6840546 | Electrofusion joint The invention provides an electrofusion joint made of a thermoplastic resin for connection with a resin pipe by heat generation of heating wires embedded in its saddle portion through electric conduction, such as a saddle joint comprising a saddle portion to be fitt... | 01/11/2005 |
| 6769719 | Multilayer tube with butt weldable end and welding method for a multilayer tube A weldable plastic tube has at least one end designed to be butt welded and designed for the conveyance of a fluid producing a drop in mechanical resistance of the weldable plastic. The tube includes an internal layer for protection of the plastic of the tube from c... | 08/03/2004 |
| 6761187 | Tubular assembly having an internal plug A tubular assembly which includes a first (or outer) tube (12), a second (or inner) tube (21) and a plug (42) within the second tube (21) is described. The plug (42) resides within at least a portion of the second tube (21),... | 07/13/2004 |
| 6676165 | Tank joint parts and a process for manufacturing an annular molded product of resins A tank joint part has a welding member welded to the outer surface of a fuel tank and a main body formed of a material of low fuel permeability and welded or otherwise joined to the welding member. The welding member is formed of modified polyethylene, wh... | 01/13/2004 |
| 6616191 | Pipes, based on polyamide and polyolefin, for gas transmission and/or distribution The present invention relates to pipes for the transmission and/or distribution of combustible gases, and liquefied gases, comprising a polyethylene layer and a polyamide inside and/or outside layer. These pipes may advantageously be connected together by... | 09/09/2003 |
| 6590189 | Method of measuring a welding voltage at a heating coil of a heating coil fitting and a heating coil welding apparatus In a method and apparatus for measuring the welding voltage at the heating coil of a heating coil fitting a welding current supply unit is connected to the connecting elements of the heating coil fitting by way of connecting lines and junction elements, a... | 07/08/2003 |
| 6478338 | Coupling sleeve for high-pressure pipe A coupling sleeve (4) for connecting to at least one pipe section (2,3) fitted in an insertion end (29) thereof comprises an inner bush (5) made of thermoplastic material and an outer bush (6), in which inner bush resistance wires are accommodated, which ... | 11/12/2002 |
| 6450544 | Combination mechanical/fusion pipe fitting A piping system that includes a plurality of pipe made of thermoplastic material, a coupling and an arrangement for securing the pipe to the coupling. The coupling is configured so that either a fusable seal or mechanical seal can be used with the couplin... | 09/17/2002 |
| 6406063 | Pipe fittings A pipe fitting for coupling together opposed ends of two plastics pipes by fusion welding, the pipe fitting comprising an annular body having an inner cylindrical surface of plastics material surrounding a cylindrical cavity for receiving opposed ends of ... | 06/18/2002 |
| 6398264 | Thermally activated joining apparatus A thermally activated joining apparatus is provided for reversibly joining piping components of a fluid management system. The joining apparatus includes a thermally activated sealant layers for securing the components together in a leakage free manner. A... | 06/04/2002 |
| 6394502 | Electrofusion coupler A fusion welding socket (18) for coupling together plastic pipes, is adapted to receive the pipe parts to be coupled together with a tight fit. The diameter of the ends (19) of the socket is greater than the diameter of the socket along an intermediate pa... | 05/28/2002 |
| 6394501 | Structural assembly device A structural assembly device and method for securing together a pair of surfaces of two fusible materials wherein an electrically conductive thermal element is located between the surfaces which will melt, without substantially degrading, when heated. Whe... | 05/28/2002 |
| 6375226 | Pipe connector having mechanical and fusion connections A pipe connector (1) for a multi-layer composite pipe, the pipe comprising at least one reinforcing layer (13, 14), or layer of high axial strength, at least one inner thermoplastic layer (9, 10) and at least one outer protective layer (15, 16), the conne... | 04/23/2002 |
| 6364367 | Weldable clamp for a pipe made of thermally weldable material A clamp of a thermally weldable material for a pipe of a thermally weldable material has two segments surrounding the pipe in a position of use of the clamp. The segments have heating mats of heatable electrical conduits integrated into inner surfaces of ... | 04/02/2002 |
| 6322653 | Method for joining spiral wound pipes A method for joining thermoplastic pipes made by spiral winding a hollow profile with mainly rectangular cross section. The method includes: cutting an end of the pipe along an inside of a profile side wall fastened to a nearest preceding wound round of s... | 11/27/2001 |
| 6309890 | Locking structure for securing a fluid transfer tube A test sample card is provided with a locking feature for achieving a positive, locking engagement with a transfer tube that conducts fluid into the interior of the test sample card. The locking feature consists of a tubular channel inwardly disposed from... | 10/30/2001 |
