| Patents for F16L 25 - Construction or details of pipe joints not provided for in, or of interest apart from, groups (6,088) |
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| 08/30/1988 | US4767136 Tight coupling device for two rigid, fixed pipes |
| 08/16/1988 | US4763696 Weld joint for soot blower lance tube |
| 08/16/1988 | US4763695 Coupling hose assembly |
| 08/02/1988 | CA1239954A1 Connecting concentric tube systems |
| 08/02/1988 | CA1239953A1 Reducer coupling and positioner tool for the coupling |
| 07/20/1988 | EP0274883A1 Pipeline joint |
| 07/20/1988 | EP0274548A1 Coupling device for instruments in pipelines |
| 07/19/1988 | US4758027 Recreational vehicle sewerline adapter |
| 07/14/1988 | DE3700644A1 Discharge pipes with interior plastic seal |
| 07/14/1988 | DE3700058A1 Hose-coupling system |
| 07/12/1988 | US4757160 Current-carrying connection between two elongate conductors of an electrical installation |
| 06/30/1988 | DE3642387A1 Device for setting drill stems in rotational motion and for axially moving drill stems |
| 06/28/1988 | US4753462 Adjustable tube clamping connector |
| 06/22/1988 | EP0271598A2 Method for molding corrugated pipe sleeve |
| 06/21/1988 | US4752208 Apparatus for molding corrugated pipe sleeve |
| 06/01/1988 | DE3639815A1 Tubular insulating piece for installation into a pipeline |
| 05/31/1988 | US4747621 Aquatic vacuum hose swivel cuff |
| 05/31/1988 | CA1237258A1 Vacuum cleaner wand |
| 05/05/1988 | WO1988003354A1 Conductive flanged fitting |
| 04/21/1988 | DE3634265A1 Pipe connection |
| 04/20/1988 | EP0264178A2 Assembly of tap connectors to hoses |
| 03/31/1988 | DE3632127A1 Pipe coupling |
| 03/22/1988 | CA1234255A1 Tool joint |
| 03/17/1988 | DE3630147A1 Arrangement for connecting a smooth pipe onto the corrugated inner pipe of a concentric pipe system |
| 03/09/1988 | EP0259209A1 Device for bringing about a tight connection |
| 03/09/1988 | EP0259145A2 Fire resistant seal |
| 03/09/1988 | EP0258772A2 Pipepart for pipelines, especially for radiator connecting lines |
| 03/08/1988 | US4730234 Pipe assembly module with internal electrical circuitry |
| 02/16/1988 | US4725082 Coupling |
| 02/09/1988 | US4724111 Method for molding corrugated pipe sleeve |
| 02/09/1988 | US4723796 Connector for corrugated tubing |
| 02/02/1988 | US4722556 Recreational vehicle sewerline adapter |
| 01/28/1988 | DE3623400A1 Insulating piece for service lines |
| 01/26/1988 | US4721405 Tensioned coupling assembly |
| 01/07/1988 | EP0251860A1 Sealed connecting device for two fixed pipes |
| 12/30/1987 | WO1987007935A1 Method of joining tubes having a corrugated wall of plastic material |
| 12/30/1987 | CN87104331A Tight connecting attachment for two rigid pipes |
| 12/15/1987 | US4712812 Universal fittings |
| 12/08/1987 | US4711472 Connector for non-metallic conduit |
| 12/01/1987 | USH394 Flexible coupling device with electrical bonding for metallic ducts |
| 12/01/1987 | CA1229893A1 Two-part handle assembly for electrical appliance |
| 11/25/1987 | EP0246296A1 Conductive flanges for pipe fittings |
| 11/24/1987 | US4708370 Recreational vehicle discharge pipe coupler |
| 11/17/1987 | US4706455 Filtering device for vehicle exhaust |
| 11/03/1987 | US4703956 T-fitting for use with different diameter pipes |
| 10/27/1987 | US4702502 Gasket for making joints in corrugated plastic pipe |
| 10/27/1987 | US4702500 Fire resistant seal |
| 10/15/1987 | DE3626289C1 Pipe coupling and process for producing a securing device for this pipe coupling |
| 10/14/1987 | EP0240860A2 Heating furnace |
| 10/13/1987 | US4699403 Self-contained connectors for standard tubes |
| 10/08/1987 | DE3610947A1 Connection |
| 09/23/1987 | EP0237904A1 Arrangement for the releasable connection of two pipe sections |
| 09/15/1987 | US4693421 Apparatus for conducting hot gases from an exhaust pipe |
| 09/10/1987 | DE3606953A1 Modular preparation apparatus for compressed air and other media |
| 09/09/1987 | EP0235818A1 Coupling socket protected against shearing |
| 09/03/1987 | DE3606370A1 Flexible joint seal for structural parts |
| 09/03/1987 | DE3605605A1 Socket coupling for pipe and hoses, in particular for suction lines with suction nozzles |
| 09/01/1987 | US4690434 Pipe coupling |
| 08/25/1987 | US4688833 Recreational vehicle discharge pipe adapter |
| 08/20/1987 | DE3605330A1 Sealing means for the axial connection of transversely corrugated plastic pipes |
| 08/20/1987 | DE3605329A1 Double-walled seepage-line pipe of plastic |
| 08/18/1987 | US4687232 Pipe slip joint system |
| 08/11/1987 | US4685705 Large deflection pipe coupling |
| 08/05/1987 | CN86104548A Tubular article |
| 07/23/1987 | DE3643835A1 Device for connecting the ends of, or for closing openings in, corrugated pipes |
| 07/14/1987 | CA1224164A1 Electrode supporting conduit tube for electrical heating of underground hydrocarbon resources |
| 07/02/1987 | DE3620341C1 Process and apparatus for connecting two gas pipelines |
| 06/23/1987 | US4675780 Conductive fiber hose |
| 06/23/1987 | US4675221 Fire sleeve for hose |
| 06/23/1987 | US4674775 Coupling for corrugated conduit |
| 06/23/1987 | US4674773 Insulating coupling for drill collars and method of manufacture thereof |
| 06/16/1987 | US4672728 Pressure signal instrumentation having removable flanges and mounting method therefor |
| 06/11/1987 | DE3543233A1 Contact element for hoses having a metal insert |
| 06/11/1987 | DE3542877A1 Insulating and sealing element for flange connections |
| 06/09/1987 | US4671541 Flexible pipe coupling |
| 06/04/1987 | DE3541972A1 Transportation line for gas or fluids |
| 06/04/1987 | DE3541388A1 Pipe connector for pipes having spherical pipe ends |
| 06/02/1987 | US4669999 Lubricant delivering and containment overload shearable coupling |
| 06/02/1987 | US4669762 Dual duct connector |
| 05/27/1987 | EP0223510A1 Couplings for connecting vehicle exhaust tail pipes to exhaust conduits for removing vehicle exhaust gases |
| 05/26/1987 | US4667988 Clamping element |
| 05/21/1987 | WO1987003162A1 Conductive flanges for pipe fittings |
| 05/20/1987 | EP0222027A1 Pipe connection for a high pressure gas main |
| 05/19/1987 | US4665960 Coded coupling |
| 05/05/1987 | US4662658 For reducing the gas flow |
| 04/28/1987 | US4660864 Sealing adapter for pipe for differing material |
| 04/28/1987 | US4660860 Flexible pipe coupler |
| 04/21/1987 | US4659870 Socket-less pipe joints |
| 04/21/1987 | US4659118 Pipe seal connection between confronting ends of two coaxial relatively rotatable pipes |
| 04/21/1987 | US4659115 Reducer coupling and positioner tool for the coupling |
| 04/08/1987 | EP0217321A2 Shut-off valve |
| 04/08/1987 | EP0217313A2 Dielectric isolation of metallic conduits |
| 03/31/1987 | US4654747 Dielectric isolation of metallic conduits |
| 03/26/1987 | WO1987001788A1 Pipe coupling for refrigerant fluid pipes |
| 03/25/1987 | EP0215522A2 Reducer coupling and positioner tool for the coupling |
| 03/24/1987 | US4652018 Multi-fastening coupler for electrical conduit |
| 03/19/1987 | DE3600707A1 Separators, made from non-metallic material, between a radiator and pipeline and intended to interrupt the pipeline itself in order to prevent the transmission of electric and acoustic signals |
| 03/18/1987 | EP0214395A1 Elastic pipe joint, especially a flexible pipe coupling |
| 03/17/1987 | US4650226 For use in a wellhead |
| 03/10/1987 | US4648926 Electrically-isolating coupler suitable for high pressure cryogenic gas flow |