| Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444) |
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| 01/05/1994 | DE4220636A1 Coupling sleeve for self-tapping injection anchors for flushing medium injection during percussion drilling - includes internal thread and axial abutment for screwed-in injection anchor |
| 01/04/1994 | US5275845 Applying a ceramic based lubricant paste, oil and gas production equipment |
| 01/04/1994 | US5275445 Gas-tight pipe connection |
| 12/21/1993 | CA1325421C Drill rod for percussion drilling |
| 12/15/1993 | EP0574102A1 Pretreatment process for the elements of a gastight pipe connection |
| 12/15/1993 | EP0573483A1 Improvements in and relating to pipe connectors |
| 12/07/1993 | USRE34467 Tubular connection |
| 11/23/1993 | US5263748 Couplings for standard A.P.I. tubings and casings |
| 11/23/1993 | CA1324624C Elastomer seal structure |
| 11/18/1993 | EP0570028A2 Lengthened tubular pin member/nose for improving sealing integrity and bearing forces |
| 10/27/1993 | CN2144753Y Screw-threaded joint |
| 10/19/1993 | US5253902 Anti-seizing surface coating for assembly means for tubes by threadings and process for producing such a coating |
| 10/13/1993 | CN2143707Y Structure-improved valve joint |
| 10/12/1993 | US5251942 For joining two internally pressurized plastic pipes of equal diameters |
| 10/05/1993 | CA1322773C Threaded tubular connection |
| 09/28/1993 | US5248004 Adjustable pipe joint |
| 09/16/1993 | WO1993018330A1 Buttress-threaded tubular connection |
| 09/16/1993 | WO1993018329A1 Stabilized center-shoulder-sealed tubular connection |
| 09/16/1993 | CA2131821A1 Stabilized center-shoulder-sealed tubular connection |
| 09/08/1993 | EP0468959B1 Packing in the form of a truncated cone for making a watertight seal between threaded connections |
| 09/02/1993 | WO1993017215A1 Method for overburden drilling, casing shoe and casing tube for the method, and coupling element for the casing tubes |
| 08/31/1993 | US5240293 Brittle lined pipe connector |
| 08/31/1993 | CA1321808C Hermetic metal pipe joint |
| 08/17/1993 | US5236231 Brittle lined pipe connector |
| 08/17/1993 | US5236230 For joining lengths of first and second tubular conduits |
| 08/10/1993 | US5233742 Method and apparatus for controlling tubular connection make-up |
| 08/04/1993 | EP0554111A1 Improvements in or relating to threaded members |
| 07/28/1993 | EP0552674A1 Sealing device with sealing ring |
| 06/30/1993 | CN2137319Y Pipe line loose joint |
| 06/29/1993 | CA1319721C Hydraulic coupling |
| 06/25/1993 | WO1993013343A1 Sealing means for pressure carrying elements |
| 06/25/1993 | CA2104690A1 Sealing means for pressure carrying elements |
| 06/25/1993 | CA2085968A1 Sealing means for pressure carrying elements |
| 06/22/1993 | US5221113 Male and female screw threads, more especially for pneumatic equipment |
| 06/17/1993 | DE4220813A1 Test connection sealing device, for e.g. brake light switch - has elastomeric inner seal which in use lies on connector base, and thread is not formed or connected over inner seal |
| 05/25/1993 | US5213137 Check valve shear fitting with test port |
| 05/25/1993 | US5212885 High gas sealibility makeup for API buttress connections |
| 05/13/1993 | WO1993009375A1 High torque tool joint |
| 05/12/1993 | CN2132902Y Wall seating of tap having mixture of cold-hot water |
| 05/04/1993 | CA1317281C Thread coupling |
| 04/27/1993 | CA1316964C Tubular coupling with improved metal to metal seal |
| 04/20/1993 | CA1316301C Elliptical thread design |
| 04/01/1993 | WO1993006404A1 Optimized tubular connection |
| 04/01/1993 | WO1993006197A1 An agent for protection and lubrication of pipe connections, particularly pipe thread sections, and tubing on which such an agent is applied |
| 03/31/1993 | EP0241521B1 Seal for threaded pipe connection |
| 03/30/1993 | US5197769 Adjustable O-ring port fitting for a hydraulic coupling |
| 03/23/1993 | US5195785 Adapter for customizing gas tank fill fittings |
| 03/23/1993 | CA1314808C Ratcheting and threaded well connector |
| 02/24/1993 | CN2127453Y Gymbal |
| 02/16/1993 | US5186500 Fiberglass tubular coupling with liner |
| 02/02/1993 | CA1313402C Pressure energized sealing joint |
| 01/20/1993 | EP0523775A1 Universal packing sleeve |
| 01/13/1993 | EP0522410A1 Pipeline for conducting exhaust fumes in a house chimney in need of restauration, method of manufacture and application of such pipeline |
| 01/07/1993 | WO1993000544A1 Pipe section for forming an inner chimney flue conveying flue gas in a domestic chimney needing repair, process for making the pipe section and its use |
| 12/30/1992 | EP0520596A1 Connection element pretreatment process for a gastight sleeve-pipe coupling |
| 12/27/1992 | CA2072431A1 Procedure for pre-treating the connecting elements of a gas-tight coupler-type tube connection |
| 12/23/1992 | EP0519582A2 Gas-tight pipe coupling |
| 12/22/1992 | CA2071695A1 Gas-tight pipe connection |
| 12/22/1992 | CA1311779C Joints for high-alloy oil-well tubing with resistance to crevice corrosion |
| 12/09/1992 | EP0516998A1 Ductile cast iron driving tube |
| 12/08/1992 | US5169183 Threaded joint for drill rod elements |
| 11/25/1992 | CN1019229B Double wall spiral corrugated plastic pipe |
| 11/24/1992 | US5165731 Pipe fitting having a multi-fittable thread |
| 10/27/1992 | US5158326 Casing head connector |
| 10/15/1992 | WO1992017730A1 Drill casing connectors |
| 10/13/1992 | US5154452 Tubular connection with S-thread form for clamping center seal |
| 10/07/1992 | EP0494249A4 Variable length pipe connector and method of manufacture and use |
| 10/07/1992 | CN2118224U Movable joint for dual linking structure |
| 09/22/1992 | CA1307750C Composite thread coupling for reinforced pipe |
| 09/08/1992 | US5145710 For carrying oil or natural gas |
| 09/01/1992 | US5143411 Threaded tubular connection |
| 08/29/1992 | WO1992015815A1 Improvements in and relating to pipe connectors |
| 08/29/1992 | CA2101549A1 Pipe connectors |
| 08/26/1992 | EP0500482A1 Anti-friction coating for threaded connecting tubes and process for manufacturing such a coating |
| 08/26/1992 | CN2114076U Jag open flat washer |
| 08/25/1992 | US5141255 Joint for connecting sprinklers to underground water pipes |
| 08/11/1992 | US5137310 Assembly arrangement using frustoconical screwthreads for tubes |
| 08/04/1992 | CA1305984C Threaded fitting with seal for steel pipes |
| 07/22/1992 | CN1017546B Force concentrating unitary fitting |
| 07/15/1992 | EP0494249A1 Variable length pipe connector and method of manufacture and use. |
| 07/14/1992 | US5129689 Threaded tubular connection with outer threaded ring |
| 07/07/1992 | US5127784 Fatigue-resistant buttress thread |
| 06/11/1992 | WO1992010011A1 Device carrying a wire through the wall of a housing while maintaining a leaktight seal |
| 06/09/1992 | CA1303094C Pipe union assembly |
| 06/09/1992 | CA1303092C Fluid coupling construction for non-pressure balanced fluid conduction swivel joints |
| 06/04/1992 | DE4038394A1 Anordnung zur dichten durchfuehrung eines leiters durch die wand eines gehaeuses Arrangement for the sealed conductors through the wall of a housing |
| 06/03/1992 | EP0488912A2 Frustoconical screwthread for tubes |
| 05/26/1992 | US5115550 Adjustable O-ring port fitting for a hydraulic coupling |
| 05/14/1992 | DE4035684A1 Roller and tube joint - has centering seats to give trouble-free screwing action to join sections together |
| 05/13/1992 | EP0485080A1 Locking tube connection |
| 05/13/1992 | EP0484392A1 Threaded tubular connection |
| 05/06/1992 | CN2103714U Leakless screw thread pipe fittings |
| 05/05/1992 | US5110160 High pressure port fitting system |
| 04/29/1992 | EP0482204A1 Pipe joint |
| 04/28/1992 | CA1299349C Process and device for screwing a threaded joint in a tube having screwing stops |
| 04/22/1992 | CN2102426U Pipe moveable joint |
| 04/21/1992 | US5106130 Composite thread coupling for reinforced pipe |
| 04/21/1992 | CA1299116C Sleeveless tubes (tubing) for hydrocarbon pumping pipes (integral premium joint) |
| 04/14/1992 | US5104151 Coupler apparatus for connecting a conduit to an equipment opening having damaged threads |
| 04/08/1992 | CN2101156U Active joint against expansion and contraction leakage |