| Patents for F16L 13 - Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints (5,381) |
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| 06/25/1991 | US5026098 Coupling |
| 06/25/1991 | US5025546 Method of joining pipes |
| 06/16/1991 | WO1991009247A1 Fusion pipe joining system and method |
| 06/13/1991 | WO1991008413A1 Pipe joint |
| 06/11/1991 | US5022685 Secondary containment system and method |
| 05/08/1991 | EP0426147A2 Concrete pipe having a corrosion resistant inner lining, suitable pipe connection pieces and sealing arrangements integrated into the end pieces of the pipes |
| 05/08/1991 | DE4034953A1 Concrete pipe with anti-corrosion inner living |
| 05/04/1991 | CA2029144A1 Concrete pipe with a lining resistant to corrosion and with fitting connecting members and furthermore with sealing means integrated in the terminal parts of the pipe |
| 04/30/1991 | US5010952 Tubular member secured within a well support member with a preload |
| 04/23/1991 | US5009737 Method of joining pipes at their ends to form a pipeline |
| 04/18/1991 | WO1991005197A1 Method of joining tubular sections |
| 04/16/1991 | US5007667 Crimped sleeve to tube joint |
| 04/16/1991 | CA1283139C Metal to composite tubular joint |
| 04/10/1991 | EP0421798A1 A throttle modulator assembly |
| 04/04/1991 | WO1991004433A1 Method of forming a connection between two objects such as tubes using a shape memory alloy component |
| 04/03/1991 | CN1050434A 管接头 Fittings |
| 03/26/1991 | US5002822 Composites to form a fabric to form pressure resistant splice case for telecommunication cables |
| 03/19/1991 | US5001320 Welding fixtures by which pipe ends are joined together |
| 03/12/1991 | US4998337 Method for the permanent mutual connection of already finished metal tubes |
| 02/27/1991 | EP0414589A2 Double-wall system for a water containment |
| 02/23/1991 | WO1991002918A1 Pipe joint |
| 02/19/1991 | US4993756 Sealing in flow of fluid |
| 02/13/1991 | EP0412626A1 Hydraulic fitting |
| 02/13/1991 | EP0412208A2 Pipe coupling |
| 02/06/1991 | CN2070857U Soldered joint of cold extrusion formed copper pipe |
| 02/05/1991 | US4989904 Connector for push-on bell-type pipe joint |
| 01/23/1991 | EP0409404A2 High pressure tube atachment mechanism |
| 01/22/1991 | CA1279344C Pipe joint |
| 01/18/1991 | CA2013126A1 High pressure tube attachment mechanism |
| 01/16/1991 | EP0408317A2 Method of forming gaskets by injection and compositions for use therein |
| 01/14/1991 | CA2011914A1 Pipe coupling |
| 01/02/1991 | CN2068635U Pipe orifice sealing fitting |
| 01/02/1991 | CA1278442C Weld joint |
| 01/01/1991 | US4981250 Explosion-welded pipe joint |
| 12/19/1990 | EP0403037A1 Compression fitting |
| 11/20/1990 | CA1276663C Restrainer device for couplings in pipelines |
| 11/20/1990 | CA1276662C Recuperator tube assembly |
| 11/07/1990 | EP0396273A2 Electro-fusion fittings |
| 11/07/1990 | EP0396204A2 Method and device for joining well tubulars |
| 10/24/1990 | CN1010120B Improved joint for connection of ends of two concentric pipes |
| 10/18/1990 | WO1990012237A1 Method of applying axial force between two objects |
| 10/18/1990 | DE3936569A1 Pipe connector for two pipe ends - has sealing sleeve producing outwardly sealed gas-conveying bridging member |
| 10/10/1990 | EP0390925A1 Crack growth limiter in high-pressure welded pipelines and method of making it |
| 10/09/1990 | US4961598 Welded pipe joint |
| 10/03/1990 | EP0390747A2 Sealing connection for multilayer plastic pipes |
| 10/03/1990 | EP0390047A1 Method for connection of pipe ends and similar |
| 09/26/1990 | EP0316333B1 Weld joint |
| 09/26/1990 | CN1009753B Weld joint |
| 09/19/1990 | CN1009678B Metal pipes jointed at their ends, production process and apparatus for carrying it out |
| 09/11/1990 | US4955970 Method of forming a joint between a connecting piece and a product formed of composite material, said joint, and said connecting piece for forming said joint |
| 09/07/1990 | WO1990010170A1 Method of forming a mechanical connection to an object |
| 09/04/1990 | US4953775 Method of effecting a single joint between two pipes |
| 08/28/1990 | US4951978 Heat-recoverable composition coupling device |
| 08/21/1990 | US4949895 Process of fixing internally titanium-lined doubled-walled tubing structure to titanium tube sheet |
| 08/14/1990 | CA1272690A1 High-pressure structure made of rings with peripheral weldments of reduced thickness |
| 08/07/1990 | US4946199 High pressure tube attachment mechanism |
| 07/25/1990 | EP0378882A1 Non-disconnectible joint for thin-walled pipes using a press fitting |
| 07/17/1990 | US4941692 Adhesive connection of tubes formed of carbon or graphite |
| 07/17/1990 | US4941690 Tubing clamp assembly |
| 07/17/1990 | CA2007754A1 Nondetachable press fit connector for thin-walled pipes |
| 06/21/1990 | DE3941236A1 Connecting pipe for flow circuit - consists of pipe and sleeve with rapid closure piece |
| 06/20/1990 | EP0373985A1 Plug-in connection for flexible hose with an O-ring rolling on a small angled cone |
| 06/20/1990 | EP0373843A2 Tubular joint |
| 06/12/1990 | CA1270278A1 Convertible flare/braze fitting |
| 05/31/1990 | WO1990005872A1 Improvements in or relating to connection fittings |
| 05/15/1990 | US4925220 Tubular joint |
| 05/02/1990 | EP0366579A1 Combined radiator and clothes drier |
| 05/02/1990 | EP0366299A2 Joining lined pipe |
| 05/01/1990 | US4921283 Connection of carbon or graphite tubes |
| 04/21/1990 | CA2001105A1 Laundry heating radiator |
| 04/05/1990 | DE3833748A1 Process and device for producing a non-releasable sealed connection of pipes |
| 04/04/1990 | EP0361630A1 Method and device and press-fitting for manufacturing a perfect, leak-proof junction of pipes |
| 03/27/1990 | US4911484 Clamping ring pipe connection for metallic pipes |
| 03/14/1990 | EP0357849A1 Tube coupling |
| 03/14/1990 | CN1040424A Crack arrester for high-pressure welded pipelines and method of producing same |
| 03/08/1990 | DE3834353C1 Press fitting |
| 03/08/1990 | DE3828966A1 Pipe-connecting member |
| 03/07/1990 | EP0357142A1 Method for the permanent mutual connection of already finished metal tubes |
| 03/07/1990 | EP0356719A1 Construction element for the manufacture of a chimney flue of a multilayered chimney, and its applications |
| 02/22/1990 | WO1990001671A1 Crack growth limiter in high-pressure welded pipelines and method of making it |
| 02/20/1990 | US4902049 Structure having interconnected metal tubes |
| 02/07/1990 | EP0353663A1 Construction element made of sealing joints and individual pipes for a chimney flue of a multilayered chimney, and its applications |
| 02/07/1990 | EP0353658A1 Jointing of a chimney flue in a multilayered chimney, and its applications |
| 02/07/1990 | EP0179906B1 Fluid fitting with high temperature capabilities |
| 01/25/1990 | WO1990000697A1 Coupling means and method for pipe material |
| 01/24/1990 | CN1006573B Improved pipe for building thermally insulated conduits and process for said building |
| 01/23/1990 | CA1264529A1 Method for the assembly of slim tubes into a plate or a sleeve |
| 01/23/1990 | CA1264528A1 Method and apparatus for joining pipe |
| 01/17/1990 | CN2051250U Straight four-way joint specialized for kitchen |
| 01/16/1990 | US4894070 Filtration of fluid media |
| 01/10/1990 | CN1038691A Butt joining method of steel and iron pipes |
| 01/03/1990 | EP0348685A1 Weld joint between a flexible metal tube and a hollow cylindrical metal joining piece |
| 12/19/1989 | US4887846 Subsea tubular joint |
| 12/14/1989 | WO1989012190A1 Radial pressure seal |
| 12/05/1989 | US4885044 Reducing embrittlement by reducing cooling rate |
| 11/29/1989 | EP0343395A2 Pressfitting, tap and method of manufacture |
| 11/16/1989 | DE3815492A1 Connecting system for a cylindrical, metallic pipe |
| 11/14/1989 | US4880260 Method of joining pipes |
| 10/25/1989 | EP0338164A1 Subsea tubular joint |
| 10/25/1989 | EP0338052A1 Pipe connections |