| Patents for F16L 47 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics (7,981) |
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| 02/20/1992 | DE4025840A1 Joining polyolefin pipe to connector - by cold expanding end of pipe with inner dia., smaller than outer dia. of connector fitting over connector, etc. |
| 02/19/1992 | EP0471574A1 Taper fitting with protective skirt means |
| 02/12/1992 | EP0470170A1 Sleeve-shaped weld connecting piece of thermoplastic material with weld indicator element, and welded joint formed therewith |
| 02/11/1992 | US5087308 Method of connecting pipes of plastics material of a double pipe system |
| 02/11/1992 | US5087083 Connector for connecting small diameter pipe |
| 02/06/1992 | DE4024292A1 Connector for large dia. pipes - has rigid push=on sleeve with ring gap containing elastic tubular hose |
| 02/04/1992 | US5086213 Device for detecting, during welding, variation in the physical state of the plastic material in a coupling piece of joining pipes |
| 01/28/1992 | WO1992002754A1 Double walled tubular article |
| 01/28/1992 | US5083890 Threaded coupling of two parts of different hardness |
| 01/28/1992 | US5083820 Pipe coupling |
| 01/28/1992 | CA2087708A1 Double walled tubular article |
| 01/22/1992 | EP0467309A1 Joint sleeve and tube fitting |
| 01/22/1992 | CN1015326B Pipe joint element |
| 01/08/1992 | EP0465419A1 Electrically heated welding sleeve |
| 01/07/1992 | US5079056 Smoothness, corrosion resistant joint |
| 01/07/1992 | US5078433 Rotating adapter for catheters and the like |
| 12/31/1991 | US5076318 Tapping tee cutter for plastic pipe |
| 12/31/1991 | CA1293628C Valve and tapping tee apparatus and method |
| 12/31/1991 | CA1293607C Closure for wraparound sleeve |
| 12/27/1991 | EP0305462B1 Device for bonding tubular plastic parts |
| 12/26/1991 | CA2045246A1 Pipe fitting |
| 12/24/1991 | US5074599 Tube fitting |
| 12/24/1991 | CA1293525C End connectors for filament wound tubes |
| 12/18/1991 | EP0461308A1 Transition piece for connecting plastic pipes with a metallic reinforcement, in particular in the sanitary and heating fields |
| 12/12/1991 | WO1991018733A1 Method of joining threaded non-ferrous pipe sections |
| 12/10/1991 | US5071173 Plastic pipe for sewer pipe reconstruction |
| 12/10/1991 | US5070597 Tubular article |
| 12/04/1991 | EP0459797A1 Pipe joints and couplings |
| 12/04/1991 | EP0459724A1 Improved drain pipe trap |
| 12/04/1991 | EP0458957A1 Fusion pipe joining system and method. |
| 12/02/1991 | CA2043590A1 Method of joining threaded non-ferrous pipe sections |
| 11/28/1991 | WO1991018239A1 A container, particularly for pressure fluid |
| 11/28/1991 | WO1991018233A2 Element of a socket-pipe system, and process for manufacturing it |
| 11/27/1991 | EP0457947A1 Process for manufacturing pipe-coupling out of plastic by injection moulding |
| 11/25/1991 | CA2043123A1 Drain pipe trap |
| 11/21/1991 | EP0423196A4 Composite thread coupling for reinforced pipe |
| 11/14/1991 | DE4015151A1 Syphon angle for sanitary installation - has overlength adjustable on final assembly and sealing nipple with support lip locating on wall front edge |
| 11/12/1991 | US5064223 Throttle modulator assemblies and thermoplastic fluid direction tubes for insertion therein |
| 11/12/1991 | US5064207 Sealing ring for sealing a pipe joint |
| 11/06/1991 | EP0454976A2 Connecting device between a pipe of plastic material and another pipe |
| 11/05/1991 | US5062914 Method for affixing a metallic tip to a tube made of composite wound material |
| 10/30/1991 | EP0311635B1 Method of joining tubes having a corrugated wall of plastic material |
| 10/16/1991 | EP0451900A1 Sealing ring for use in a pipe coupling |
| 10/15/1991 | USRE33716 Coupling devices for use with electrofusion fittings of thermoplastic material |
| 10/15/1991 | US5057263 Method of forming a pipe socket |
| 10/09/1991 | EP0449928A1 Pipe coupling. |
| 10/08/1991 | US5054824 Coupling for plastic pipe formed by centrifugal casting |
| 10/08/1991 | US5054818 Joining and connecting block between flexible elastomer material ducts |
| 10/08/1991 | CA1290361C Pipe connecting member |
| 10/02/1991 | EP0448921A1 Pipe joint |
| 10/02/1991 | DE4018396C1 Weld fitting of thermoplastic weldable material - comprises thermal conductor and cut=out section open externally with display pin and annular display gap for sealing |
| 10/02/1991 | DE4010234A1 Pipe connection esp. for cable protection conduits - has inner and outer side smooth wall course in region of pipe connection places suitable for transmitting traction |
| 10/01/1991 | WO1991015706A1 Electrically fusion-bonded joint |
| 10/01/1991 | US5053097 Method of joining tubes having a corrugated wall of plastic material |
| 10/01/1991 | CA1289989C Zero dead volume connector |
| 09/25/1991 | EP0448361A1 Improvements in or relating to threaded members |
| 09/24/1991 | US5051541 Plastic electrical connector for liquidtight conduit |
| 09/24/1991 | CA1289327C Recoverable article |
| 09/18/1991 | EP0447346A2 Improvements in threaded couplings between parts of different hardness |
| 09/18/1991 | EP0446314A1 Welding muff and process for manufacturing it |
| 09/11/1991 | EP0445445A1 Novel closure device for shrinkwraps |
| 09/10/1991 | WO1991013756A1 Polymeric protective articles and electrical, optical or fluid-conduit apparatus incorporating such articles |
| 09/10/1991 | CA2075924A1 Polymeric protective articles and electrical, optical or fluid-conduit apparatus incorporating such articles |
| 08/29/1991 | DE4005826A1 Clamping connector for plastic pipe - has e.g. part to hold pipe, suitably expanded nut to clamp it against sealing ring, and outer nut |
| 08/28/1991 | EP0443417A1 Tapping clamp made of plastic |
| 08/21/1991 | EP0442505A2 Pipe junction fitting, pipe connection fitting with nut |
| 08/14/1991 | EP0441619A1 Flanged pipe joints |
| 08/14/1991 | DE4012297C1 Branch for plastics pipe - has saddle with electric heater to melt thermoplastics material to make welded joint |
| 08/13/1991 | US5038816 Drain pipe trap |
| 08/07/1991 | EP0439580A1 Pipe joint. |
| 07/31/1991 | EP0439090A1 Fluid connection method and assembly |
| 07/31/1991 | EP0438990A1 Coupling for pipes made of plastic |
| 07/25/1991 | WO1991010858A1 Flexible coupling for hoses to be rolled flat and coupling method |
| 07/23/1991 | CA1286585C Method of, and elastomeric composition for protecting a substrate |
| 07/17/1991 | EP0436805A2 Method and mould for manufacturing a joint surrounded by a joining compound and such a joint |
| 07/09/1991 | US5030489 Plastic molding for pipe systems |
| 07/09/1991 | US5030487 Heat recoverable article comprising conductive polymer compositions |
| 07/03/1991 | CN1052630A Process and connection component using electrical resistor for welding of plastic elements |
| 07/03/1991 | CN1052629A Connection component of type with improved electrical resistor for jointing together plastic elements by thermalwelding |
| 07/02/1991 | US5028081 Connection for pipes of composite materials |
| 06/26/1991 | EP0433686A1 Fibre-reinforced plastics pipe with threaded end joint section |
| 06/26/1991 | EP0433335A1 Method of providing a joint between two components. |
| 06/18/1991 | CA1285011C Recreational vehicle discharge pipe coupler |
| 06/16/1991 | WO1991009247A1 Fusion pipe joining system and method |
| 06/11/1991 | US5022941 Temperature, flame, shear resistant pressure sensitive adhesives, dimensional stability; corrosion resistance for pipes |
| 06/11/1991 | US5022421 Fluid connection method and assembly |
| 06/06/1991 | DE3939570A1 Hole boring guide for attaching pipe branches - has plastic body with radial union and is welded to current pipe by heater mat with conductor wire arrangement with wire-free central zone |
| 06/05/1991 | EP0430866A2 Connection piece |
| 06/05/1991 | EP0430762A2 Process and apparatus for detecting the heat condition of a plastic element and element for joining plastic parts |
| 06/05/1991 | EP0430761A2 Process and joining element using an electrical resistance for joining plastic parts |
| 06/05/1991 | EP0430383A1 Process and apparatus for metallic coating of the threaded ends of connectable plastic pipes. |
| 06/05/1991 | EP0430377A2 Dimensionally recoverable article |
| 06/04/1991 | US5020832 Flexible pipe saddle |
| 06/04/1991 | CA1284667C Double-walled article containing lubricant |
| 05/30/1991 | CA2031025A1 Electric resistance process and fitting for soldering plastic elements |
| 05/15/1991 | EP0427356A2 Wrap-around recoverable article |
| 05/14/1991 | US5015014 Plastic pipe section |
| 05/14/1991 | CA1284159C Gasket for making joints in corrugated plastic pipe |
| 05/07/1991 | CA1283934C Prefabricated assembly for high tensile stength pipe connections |
| 04/24/1991 | EP0423306A1 Identification of electro-fusion fittings. |