| Patents for F16L 13 - Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints (5,381) |
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| 10/17/1989 | US4874193 Heat-recoverable composition coupling device |
| 10/10/1989 | US4872713 Coupling device |
| 09/26/1989 | US4869319 Wellhead structure |
| 09/26/1989 | US4868964 Apparatus for joining pipe |
| 09/26/1989 | CA1260242A1 Means for splicing two pipes |
| 09/20/1989 | EP0332661A1 A welded pipe joint |
| 09/19/1989 | US4867133 Solar collector method and apparatus |
| 09/13/1989 | CN2044310U Wrapped cement pressur pipe with antiseep layer |
| 09/12/1989 | US4866252 Heat-recoverable article |
| 09/12/1989 | US4865359 Press fit pipe joint and method |
| 09/06/1989 | EP0331412A2 Connection arrangement and method for forming the same |
| 08/29/1989 | US4860656 Joining metal tubes in a liquid environment |
| 08/22/1989 | US4858968 Lockring tube joint |
| 08/22/1989 | US4858958 Slip-joint coupling |
| 08/17/1989 | DE3803668A1 Connection of two ends of gas pipes, inner sleeve for this connection and process for producing this connection |
| 08/09/1989 | CN1034610A Clamping ring pipe connection for metallic pipes |
| 07/25/1989 | US4850621 Structure having interconnected metal tubes |
| 07/25/1989 | US4850096 Method of joining pipes |
| 07/11/1989 | EP0267234A4 Heat-recoverable devices. |
| 07/06/1989 | DE3837359A1 Clamping-ring tube (pipe) connection for metallic tubes |
| 07/04/1989 | US4844517 Tube coupling |
| 07/04/1989 | US4844516 Connector for coil tubing or the like |
| 07/04/1989 | CA1256663A1 Heat-fusion pipe fitting system |
| 06/27/1989 | US4842310 Tube connection for thin-walled small-diameter metal pipes |
| 06/13/1989 | CA1255481A1 Pipe joining method |
| 06/06/1989 | US4836586 Composite coupling |
| 05/24/1989 | EP0317190A1 Filtration of fluid media |
| 05/24/1989 | EP0316333A1 Weld joint. |
| 05/23/1989 | US4832382 Coupling device |
| 05/17/1989 | EP0316071A2 Wellhead structure |
| 05/09/1989 | US4828557 Sterile connector and method |
| 05/03/1989 | DE3806841C1 Sleeve |
| 05/02/1989 | US4826347 Force-fitted connection of a circular metal tube in an oval housing |
| 04/20/1989 | WO1989003494A1 Pipe connections |
| 04/19/1989 | EP0312023A2 Method for fixing a connecting piece to a product made of a composite material, and a connecting piece used in the method |
| 04/11/1989 | US4820561 Recoverable article for encapsulation |
| 04/11/1989 | US4819315 Process for attachment of a hollow cylindrical component within a tube and cylindrical component for carrying out this process |
| 04/05/1989 | EP0310369A1 Connecting device |
| 04/05/1989 | EP0309597A1 Coating of the jointing area of steel pipes welded together |
| 03/29/1989 | EP0309084A2 Joining metal tubes |
| 03/14/1989 | CA1251104A1 Composite structure and method and apparatus for making same |
| 03/09/1989 | DE3728886A1 Means for securing a pipe connection against torsional forces, and process for producing pipe-connection pieces which are secured against torsion |
| 02/21/1989 | US4805945 Tube joint comprising means for anchoring a sleeve at its end |
| 02/21/1989 | US4805430 Tool for cold forging tubular members |
| 02/14/1989 | US4804209 Plummer's union |
| 02/14/1989 | CA1250027A1 Process for welding pipe ends and an insulating ring therefor |
| 02/14/1989 | CA1249918A1 Heat recoverable article |
| 02/09/1989 | WO1989001118A1 Solar collector apparatus and method |
| 02/08/1989 | EP0302618A1 Connecting device |
| 01/31/1989 | CA1249618A1 Method for manufacturing a sleeve, and such a sleeve for tightly jointing it to a submarine pipe laid at great depth |
| 01/24/1989 | US4799715 High pressure tube attachment mechanism |
| 01/24/1989 | CA1249114A1 Sealing of a pipe joint |
| 01/12/1989 | DE3736812C1 Cast junction for connecting tubes in steel construction work |
| 01/11/1989 | CN1030284A Welded pipe joint |
| 12/29/1988 | DE3719703A1 Welded connection for cylindrical pipes |
| 12/21/1988 | EP0296003A1 Device and installation procedure for the connection of a tube, hose or the like to a spigot using a shape-memory alloy element |
| 12/07/1988 | EP0294008A2 An induction weldable socket and a process and apparatus for manufacturing such a socket and a process for connecting said socket to a penetrating pipe part |
| 11/22/1988 | CA1245135A1 Method of making tubular units for the oil and gas industry |
| 11/09/1988 | EP0290114A2 Tubing packer |
| 11/09/1988 | CN88101663A Metal pipes joined at their ends, production process and aparatus for carrying it out |
| 10/27/1988 | DE3809479A1 Fuegestelle an rohren aus stahl Fuegestelle steel pipes made of |
| 10/25/1988 | US4780072 Apparatus for internally coating welded pipe at the weldment |
| 10/19/1988 | EP0287535A1 A method of effecting a single joint between two pipes |
| 10/19/1988 | EP0287429A1 Process of manufacturing metallic tubes connected at their ends |
| 10/12/1988 | EP0285863A1 Process for diminishing rest tensions in a welded seam |
| 10/11/1988 | US4776616 Coupling |
| 10/05/1988 | EP0285269A1 Self-crimping connection for inner and outer members and method of assembling the same |
| 10/05/1988 | CN87100959B Welding method and apparatus for thin-plate structural parts with low-stress and deformationless |
| 09/13/1988 | US4770449 High pressure tube attachment mechanism |
| 09/13/1988 | US4769897 Method for forming a press-fitted pipe joint |
| 09/13/1988 | US4769892 Pipe joining method |
| 09/13/1988 | CA1241979A1 Tubing fitting |
| 09/07/1988 | WO1988006505A1 Improvements relating to welding |
| 09/07/1988 | CN87100959A Welding method and apparatus for thin-plate structural parts with low-stress and deformationless |
| 09/06/1988 | US4768275 Method of joining pipe |
| 08/24/1988 | EP0279657A1 Coupling device |
| 08/24/1988 | EP0279656A1 Coupling device |
| 08/23/1988 | US4765659 High pressure tube attachment mechanism |
| 08/11/1988 | WO1988005881A1 A welded pipe joint |
| 08/09/1988 | CA1240128A1 Method of joining together two pipe ends to form a pipe, preferably of metal |
| 08/03/1988 | EP0276483A1 Tube joint, especially for a flat tube evaporator |
| 08/03/1988 | CN87202443U Thermoplastics pipe and fittings with inner embedded resistor filament |
| 08/02/1988 | US4761193 Recoverable article for encapsulation |
| 08/02/1988 | CA1239956A1 Coupling device for making a permanent pipe connection |
| 07/27/1988 | EP0276137A2 Improvements relating to pipe joints |
| 07/27/1988 | EP0275815A1 Pipe joint for thin-walled, small calibre metal pipes |
| 07/12/1988 | CA1239163A1 Joint for joining together two pipe ends |
| 07/06/1988 | EP0273224A1 Method of making a hollow pressure vessel around an elongate substrate |
| 06/16/1988 | DE3641548A1 Radial knife-edge seal |
| 06/15/1988 | EP0182806B1 A means for joining two pipe sections together |
| 06/07/1988 | US4749035 Tubing packer |
| 06/02/1988 | WO1988004005A1 Process for sealing a tubular or rod-like building component in a receiving opening of the body of a building |
| 05/31/1988 | CA1237263A1 Heat recoverable polymeric articles |
| 05/24/1988 | US4746240 Self crimping connection for inner and outer members and method of assembling the same |
| 05/24/1988 | US4746150 Joint for joining together two pipe ends |
| 05/18/1988 | EP0267234A1 Heat-recoverable devices |
| 05/11/1988 | EP0267132A1 Assembling by pressing a circular metal tube in an oval hole |
| 05/11/1988 | CN87105343A Weld joint |
| 04/27/1988 | EP0159997B1 Coupling device for the permanent connection of pipes |
| 03/02/1988 | CN87104691A Forming apparatus for forming pipe end for pipe fitting |