| Patents for F16L 17 - Joints with packing adapted to sealing by fluid pressure (2,676) |
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| 05/29/1991 | EP0428678A1 Sealing element for a joint between a pipe and connector, and a method for providing such sealing |
| 05/28/1991 | US5018704 Pipe coupling with in-coupling flow controller |
| 05/28/1991 | US5018548 Segmented coupling for pipes |
| 05/14/1991 | US5015016 Internal pressure loaded V-seal connector |
| 05/07/1991 | CA1283937C Pipe coupling |
| 04/10/1991 | EP0421287A1 Hollow body set going by pressure |
| 03/26/1991 | US5002290 Static seal |
| 03/21/1991 | DE3930164A1 Pipes for waste-water system with integral plastics lining - use plastics jointing ring and are uses where aggressive liquids need disposal |
| 03/06/1991 | EP0415761A1 Structural joint |
| 03/05/1991 | US4997212 Internal expansion pipe coupling member |
| 03/01/1991 | WO1991003674A1 A seal ring for a sleeve joint |
| 03/01/1991 | CA2040416A1 Seal ring for a sleeve joint |
| 02/27/1991 | EP0414242A1 Pipe joint and pipe with pipe joint |
| 02/25/1991 | CA2023087A1 Pipe joint and pipe with pipe joint |
| 02/19/1991 | US4993722 Apparatus and method for improved pipe to manhole sealing |
| 02/14/1991 | DE4023279A1 Method of joining two walls or flanges - consists of elastic sealing ring with space between, and bridge pieces |
| 02/13/1991 | EP0412642A1 Rigid or flexible coupling for pipes |
| 01/22/1991 | CA1279345C Pipe coupling |
| 01/10/1991 | WO1991000469A1 Universal fluid line fitting |
| 01/09/1991 | CN1048445A Gasket for leaktight locked joints |
| 01/09/1991 | CN1048444A Gasket with annular anchoring heel |
| 01/07/1991 | CA2015966A1 Casing head connector |
| 01/02/1991 | EP0406145A1 Seal assembly for locked sealed joints |
| 01/02/1991 | EP0406144A1 Seal assembly with an annular anchor bead |
| 12/27/1990 | CA1278321C Anti-blowout seal |
| 12/13/1990 | DE3918879A1 Combined seal and expansion compensator - has one or more extensible and deformable hollow pieces each with one or more hollow cavities |
| 12/05/1990 | CN1047557A Seal spacer, join sleeve and seal joint |
| 11/29/1990 | WO1990014544A1 Sealing element for a joint between a pipe and connector, and a method for providing such sealing |
| 11/28/1990 | EP0399940A1 Seal and interlocking system for receiving such seal and the seal assembly obtained |
| 11/28/1990 | EP0398892A1 Method for manufacturing a composite seal, pipe part provided with such a seal and also a pipe connection comprising such a composite seal. |
| 11/23/1990 | CA2017289A1 Packing seal, nesting to hold said seal and sealing joint made therefrom |
| 11/22/1990 | EP0398471A1 Hinged pipe coupling |
| 11/14/1990 | EP0396952A1 Pipe joint between two blunt pipe ends to connect together |
| 10/31/1990 | EP0395303A2 Flexible hoses |
| 10/30/1990 | US4966395 Rigid or flexible coupling for pipes |
| 10/18/1990 | WO1990012238A1 Internal expansion coupling device |
| 10/18/1990 | DE3926626A1 Pipe coupling for two pipe ends - includes annular elastomer sleeve with thermal insulating layer |
| 10/17/1990 | EP0392470A2 Plastic bore seal |
| 10/09/1990 | CA1275128A1 Pipe coupling |
| 10/03/1990 | EP0390746A2 Demountable sealing connection between one or more plastic pipes and a joining piece |
| 09/13/1990 | DE3907477A1 Plug-in connection which is secured with respect to axial displacement and is intended for socket pipes |
| 09/13/1990 | DE3907340A1 Sealing ring of polymeric material |
| 09/12/1990 | EP0387150A1 Static sealing |
| 09/11/1990 | US4955641 Pipe seals used in underground sealed distribution systems |
| 09/04/1990 | CA1273665A1 Hose coupling |
| 08/29/1990 | CN1009386B Thin-wall pipe union and bind structure with pipeline |
| 08/16/1990 | DE3943417A1 Detachable push-in joint for pipes - with (chlorinated) PVC or socket, lip seal ring and screw cap |
| 08/08/1990 | EP0381357A1 Pipe couplings |
| 08/07/1990 | US4946206 Bidirectional corrugated pipe-rib seal |
| 07/26/1990 | WO1990008287A1 Socket-type union for high-pressure line connections |
| 07/19/1990 | DE4000067A1 Plug-in-type pipe union - has sheet-metal bush with internal collar sealed into elastomer ring |
| 07/12/1990 | WO1990007627A1 System and method for sealed connection between two abutting tube ends |
| 06/19/1990 | US4934716 Pipe sealing ring and method of manufacturing the same |
| 06/13/1990 | EP0372963A1 Apparatus and method for improved pipe to manhole sealing |
| 06/05/1990 | US4930791 Plastic bore seal |
| 05/23/1990 | EP0368850A1 Flexible pipe coupling. |
| 05/22/1990 | US4927189 Internal expansion coupling device |
| 05/01/1990 | US4921258 Adapter seal |
| 04/17/1990 | US4917530 Structural joint |
| 04/17/1990 | CA1267853A1 Drainage element |
| 04/11/1990 | CN1041213A Joint for pipelines |
| 04/10/1990 | US4915422 Pipe coupling |
| 04/10/1990 | US4915418 Hinged pipe coupling |
| 04/04/1990 | EP0361765A2 Pipe coupling segments |
| 04/04/1990 | EP0360946A1 Coupling for butt-joining tubes |
| 04/03/1990 | US4913469 Wellhead slip and seal assembly |
| 03/28/1990 | EP0360690A1 Fluid-tight coupling device with a metal lip |
| 03/27/1990 | CA1267175A1 Joint for connecting a spigot to the bell of a pipe or coupling |
| 03/21/1990 | EP0359355A1 Wellhead slip and seal assembly |
| 03/21/1990 | EP0197050B1 Metal-to-metal wedge thread coupling connector |
| 03/14/1990 | EP0358256A1 A sealing and protective device for pipes |
| 03/13/1990 | CA1266690A1 Slip joint seal assembly |
| 03/06/1990 | US4906010 Joint for connecting a spigot to the bell of a pipe or coupling |
| 02/20/1990 | US4902044 Well apparatus |
| 02/15/1990 | DE3826114A1 Sealing sleeve for a pipe coupling |
| 02/06/1990 | US4898407 Coupling for pipes with plain ends |
| 01/30/1990 | US4896902 Segmented transition coupling |
| 01/23/1990 | US4895394 Method and system maintaining tightness between parts rotating in relation to one another |
| 01/23/1990 | CA1264784A1 Metal-to-metal wedge thread coupling connector |
| 01/11/1990 | DE3822159A1 Plug-in connection which can be pre-mounted on the socket side |
| 12/27/1989 | EP0347608A1 Sealing ring |
| 12/14/1989 | DE3819961A1 Sealing element for sockets of two-part plug-in sockets on pipes |
| 12/12/1989 | US4886303 Coupling with improved elastomeric face seal |
| 12/07/1989 | DE3817714A1 Device for the sealed connection of two cast-iron pipes |
| 11/28/1989 | CA1263425A1 Plastic encased gasket |
| 11/28/1989 | CA1263424A1 Sealing element for cast iron piping joints |
| 11/28/1989 | CA1263419A1 Pipe joint seal |
| 11/16/1989 | WO1989011056A1 Tubing collar |
| 11/08/1989 | EP0340658A2 Activatable seal for pipes to be driven in the ground |
| 11/08/1989 | EP0340385A2 Inflatable sealing |
| 11/07/1989 | CA1262748A1 Externally threaded quick connect coupling having integral fluid pressure assisted seal |
| 11/07/1989 | CA1262743A1 Self-reinforced face seal |
| 11/02/1989 | DE3813580A1 Connecting process for pipes |
| 10/04/1989 | CN1036068A Self-sealing and locking pressure tester for tubes |
| 10/03/1989 | US4871180 Seal construction in bell and spigot type concrete pipe connection |
| 09/28/1989 | DE3814035C1 Connection between a straight steel pipe and an arcuate cast pipe |
| 09/26/1989 | CA1260982A1 Tube coupling |
| 09/26/1989 | CA1260033A1 Gasket incorporating implants for interfitting pipes |
| 08/29/1989 | US4861077 Trapezoidal seal ring connection |
| 08/29/1989 | US4861075 Coupling for rigidly connecting pipe sections |