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| Number | Title | Issue Date |
| 7341285 | Chemical fusion of non-metallic pipe joints A pipe joint for joining pipes having a low surface energy and resistance to solvents. The components are an extrudable adhesive; a first pipe having a socket with an inside diameter, where the socket has a mouth, a self-centering bottom, and a cylindrical wall with... | 03/11/2008 |
| 7178557 | CPVC drain waste and vent fittings A drain, waste and vent (“DWV”) fitting is made from chlorinated polyvinyl chloride. ... | 02/20/2007 |
| 7014219 | Pipe joint and method of producing a pipe joint A pipe joint includes at least a first and a second pipe. A section of the first pipe is opened out and a further section of the second pipe is inserted into the section, so that both pipes overlap in an overlap region. A gap is formed between the section and the fu... | 03/21/2006 |
| 6994379 | Tubular assembly having an internal plug A tubular assembly that includes a plug (45) residing within at least a portion of each of a first tube (12) and a second tube (30), is described. Each of the first and second tubes have perforations (21 and 39) that are separately... | 02/07/2006 |
| 6494498 | Latchable line connector, in particular for fuel lines A latchable line connector having a plug-in part for connecting at least one pressure or flow line, such as a fuel line, into a plug-in opening of a connector counterpart. Mechanical stress between the plug-in part and the connector counterpart is reduced... | 12/17/2002 |
| 6305719 | Pipe repair clamp A clamp for repairing a damaged pipe member. Shell members are matingly engaged around the damaged pipe member. Segmented inserts are received in a complementary annular channel formed in an inside face of the shell members to form a ring assembly support... | 10/23/2001 |
| 6012743 | Quick connection device for fluid conduit under pressure A quick-coupling device for a duct for fluid under pressure, in particular for a motor vehicle, the device comprising a metal sleeve (10) having a first end which includes an overmolded sealing lining (18) and is engaged on an enlarged end (24) of the duc... | 01/11/2000 |
| 5955020 | Apparatus and method for injecting corrosion control compounds into pipe flanges and the like An apparatus and method for injecting corrosion control compound into a crevice or void such as pipe flanges featuring a corrosion control kit comprising a syringe injector having a detachable nozzle, a corrosion control compound, pipe tape and a mantle f... | 09/21/1999 |
| 5901987 | Method of making an endpiece, an endpiece and a connector made by the method, and a circuit including such a connector The present invention relates mainly to a method of making an endpiece, to an endpiece and a connector made by said method, and also to a circuit including such a connector. According to the invention, a single gasket is provided which serves simultaneous... | 05/11/1999 |
| 5887909 | Joint for different-diameter pipes and method of connecting different-diameter pipes A joint which is a cylindrical body having an inner circumferential surface, a diameter of which is larger than any of outer diameters of two pipes to be connected, the cylindrical body being provided with an annular projecting strip portion formed in an ... | 03/30/1999 |
| 5868437 | Composite pipe structure A pipeline is made by joining a number of pipe sections, each of which includes an inner pipe structure and an outer pipe structure. The outer pipe structure, which may be zinc plated or encased in an protective elastomeric material, includes mating coupl... | 02/09/1999 |
| 5851036 | Permanent fitting for fluid-tight connections A pipe connector has a coupling with a first cylindrical land, a second cylindrical land, and a third cylindrical land. There is a first annular recess defined between the first cylindrical land and the second cylindrical land, and a second annular recess... | 12/22/1998 |
| 5722701 | Method and assembly for joining pipes An assembly for joining pipes which completely prevents fluid from leaking from connections of pipes when they are joined, in which a seal member is wrapped around connections of pipes disposed longitudinally to one another, a watertight device is placed ... | 03/03/1998 |
| 5685577 | Permanent fitting for fluid-tight connections A pipe connector has a coupling with a first cylindrical land, a second cylindrical land, and a third cylindrical land. There is a first annular recess defined between the first cylindrical land and the second cylindrical land, and a second annular recess... | 11/11/1997 |
| 5486024 | Socket for connecting pipe ends by injection of adhesive A socket is provided whereby pipe ends are joined together so that a gas and water-tight connection is established between the pipes. The socket is generally in the form of a tubular shell having at least one projection extending radially from an inner fa... | 01/23/1996 |
| 5433486 | Pipe connection for flue-gas pipes The invention refers to a process and an arrangement to connect and seal tubes (2, 4) made of glass, metal or ceramic materials, that are joined to form flue-gas pipes. The sealing system according to the invention is distinguished by the fact that it can... | 07/18/1995 |
| 5403045 | Joint connection To improve a joint connection comprising a first part and a second part which are fixed relative to one another by positive connection in a direction of load such that essentially no lumped loads occur, it is proposed that the first part and the second pa... | 04/04/1995 |
| 5301983 | Pipe component seal assembly A pipe component seal assembly comprising a pipe system component capable of carrying a fluid under pressure and having means communicating to the atmosphere through which the fluid in the pipe system component can flow, a housing secured to the outer sur... | 04/12/1994 |
| 5152481 | Kite frame connector A kite frame connector adapted to receive an elongated frame of a kite is provided. The connector has a main body with a surface defining a channel adapted to receive the kite frame member. A retention element extends from that surface into the channel fo... | 10/06/1992 |
| 5133577 | Refractory pipeline with gas-tight joint A refractory pipeline having ceramic pipe sections with joints therebetween located at areas where in which there are the greatest temperature differences in the pipeline. Adjacent pipe sections are connected together by shoulders at the ends of each such... | 07/28/1992 |
| 4666188 | Coupling apparatus A coupling apparatus and method is disclosed for coupling a first and a second hose to enable the flow of fluid therethrough upon the application of fluid pressure comprising a first coupling member having a first internal bore connected to the first hose... | 05/19/1987 |
| 4610740 | Method for joining insulated conduits A method for joining insulated conduits is disclosed, in which the bared ends of the medium-carrying pipes are first interconnected in a per se known manner and a union piece is thereafter placed around the resulting joint, such that the union piece has a... | 09/09/1986 |
| 4591193 | Line pipe of synthetic material especially for waste water A line pipe of synthetic material for nominal sizes about 200 mm, especially a waste water pipe, comprising a separate smooth inner pipe and a transversely corrugated outer pipe, the pipes being telescoped into one another in such a manner that the wave t... | 05/27/1986 |
| 4569541 | Heavy duty hose coupling and method for manufacture of hose-coupling combination The coupling has a stem and a ferrule. The stem is placed against an uncured hand-built steel cable reinforced hose. The steel reinforcement cable is spiraled onto a smaller diameter portion of the stem. The ferrule is then slid over the stem and over the... | 02/11/1986 |
| 4523779 | Pipe coupling and sealing device therefor A coupling for joining two pipe sections, having end terminals, comprises: (a) a collar forming a through opening and having bore surfaces bounding said opening to closely receive a pipe section so that the collar is movable axially of the pipe section into co... | 06/18/1985 |
| 4477108 | Flexible hose having an end connection fitting A flexible hose having an end connection fitting capable of withstanding high pressures and high end loads comprises a nipple having a stop ring on its outer periphery and a plurality of protruberances between the stop ring and the rear end of the nipple.... | 10/16/1984 |
| 4372562 | Inflatable packer with liquid resin anchored reinforcing sheath An inflatable packer includes a reinforcing element constructed from first and second layers of alternately biased calendered steel cables. Fixed and sliding end shoes each are a single machined structure and include a roughened inner cylindrical surface ... | 02/08/1983 |
| 4240650 | Leaking weld repair clamp A clamp assembly for sealing a leaking pipe weld or pipe flange joints. The clamp comprises a collar having hinged-together arcuate segments. The collar is further provided with flanges adapted to be bolted together to connect the hinged segments which ma... | 12/23/1980 |
| 4226444 | Pipe joints A method of joining pipes in which a sleeve is placed over the adjacent ends of the pipes so as to overlap each pipe. The sleeve fits with clearance around the pipe ends. The ends of the clearance space are closed by inflating hollow sealing rings and the... | 10/07/1980 |
| 4061872 | Cable splice kit An enclosure for encapsulating and sealing a splice between two or more underground cables is disclosed. A tubular chamber is provided to receive the splice, and the chamber has a radial access hole for pouring plastic compound into the chamber. The cable... | 12/06/1977 |
| 4049480 | Method and apparatus for forming a joint in a confined space between two abutting ends of conduit liners Disclosed is a method and apparatus for forming a joint in a confined space between two abutting ends of conduit liners. In the method, an excavation is formed to provide access to a buried conduit. Thereafter, the conduit is opened and cleaned of debris ... | 09/20/1977 |
| 3989281 | Joint system for filament wound aluminum pipe A system for joining aluminum pipe designed as a housing for electrical cable surrounded with oil under pressure is provided. The aluminum pipe sections which are to be joined are filament wound. The pipe sections are joined by welding or soldering. Seali... | 11/02/1976 |
| 3977704 | Pipe coupler A pipe coupler utilized for connecting two sections of pipe to prevent the escape of gas from within the pipe through the joint therebetween. An annular coupling member comprises two end sections and an intermediate section therebetween, with the two end ... | 08/31/1976 |