Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444)
10/1995
10/12/1995DE19507853A1 Sealing device for joining ends of tubes under pressure
10/03/1995US5454605 Tool joint connection with interlocking wedge threads
09/1995
09/28/1995WO1995023908A3 Fluid-tight connecting apparatus
09/27/1995EP0673484A1 Corrosion resistant connection for use with tubular members
09/26/1995US5452748 Synchronized dual thread connector
09/20/1995EP0672817A1 Gas impermeable static seal
09/13/1995CN2207502Y Return elbow compensator for radiator
09/13/1995CN2207500Y Water feed pipe union of full automatic washer
09/08/1995WO1995023908A2 Fluid-tight connecting apparatus
09/06/1995EP0670021A1 Pipe connecting assembly and method for joining two lengths of steel pipe by a press-fit connection
08/1995
08/15/1995US5441487 Plastic needleless valve housing for standard male luer locks
08/09/1995EP0494249B1 Pipe connector
07/1995
07/18/1995US5433489 Pipe fitting
07/13/1995WO1995018934A1 Synchronized dual thread connector
07/13/1995CA2191443A1 Synchronized dual thread connector
07/12/1995CN1105111A Improved integral joint for connecting two pipes
07/11/1995US5431831 Compressible lubricant with memory combined with anaerobic pipe sealant
07/06/1995WO1995018329A1 Pipe fitting
06/1995
06/27/1995US5427418 High strength, low torque threaded tubular connection
06/22/1995WO1995016873A1 Pipe-joining device
06/21/1995CN2201555Y Template outer thread pipe joint
06/21/1995CN2201483Y High pressure, thermal insulating, fire resistant spraying hose
06/20/1995US5425428 For permitting passage of a tool through the interior of a pipe
06/15/1995WO1995016161A1 High-strength, low-torque threaded tubular connection
06/14/1995CN2200743Y 接头 Connector
06/13/1995US5423579 Tubular coupling with metal to metal seal
06/08/1995WO1995015195A1 Plastic needleless valve housing for standard male luer locks
06/08/1995WO1995015194A1 Slit septum needleless site with check valve
06/08/1995WO1995015193A1 Anti-reflux valve with environmental barrier
06/07/1995CN2200093Y Connecting method and conencting piece for water pipe
05/1995
05/31/1995CN2199395Y Directly inserted movable joint for pipeline
05/31/1995CN1103148A Improved anti-seizure protection for joints, particularly suitable for the petroleum sector
05/30/1995US5419595 Threaded joint for oil well pipes
05/16/1995US5415442 Stabilized center-shoulder-sealed tubular connection
05/11/1995DE4345119C1 Pipe connector
05/02/1995US5411301 Tubing connection with eight rounded threads
04/1995
04/25/1995US5409066 Adjustable sprinkler head positioning assembly
04/20/1995CA2118287A1 Integral joint for connecting two pipes
04/19/1995EP0648967A1 Improved integral joint for connecting two pipes
04/18/1995US5406983 Corrosion-resistant composite couplings and tubular connections
04/12/1995EP0647810A1 Screw element with sealing for making a tight threaded connection
04/11/1995US5405461 Method of producing high Strength sucker rod coupling
04/11/1995US5405457 High strength sucker rod coupling
04/11/1995US5405171 For containing a hard-to-handle fluid
03/1995
03/30/1995CA2132154A1 Method and fitting for connecting opposed ends of a pair of pipe sections
03/29/1995CN1100788A Quick joint for rapid, tight-seal connection of pipes, particularly suitable for petroleum pipes
03/21/1995US5398975 Composite threaded pipe connectors and method
03/01/1995CN2190728Y Steam or liquid transport pipe system member
02/1995
02/08/1995CN2189255Y Screw-threaded joint of pipe end
02/02/1995WO1995003475A1 Slimhole coring system
01/1995
01/24/1995US5383692 For joints of pipe
01/11/1995CN2187248Y Pipe
01/04/1995EP0632225A1 Improved anti-seizure protection for joints, particularly suitable for the petroleum sector
01/04/1995CN2186841Y Floating movable joint for low pressure water, gas pipe network
01/04/1995CN2186840Y Photoelectric tube quick joint
12/1994
12/28/1994EP0630455A1 Stabilized center-shoulder-sealed tubular connection
12/27/1994US5375893 Threaded members
12/27/1994CA1333652C Method of forming a screw thread and tubular body with a screw thread
12/22/1994WO1994029627A1 Pipe connection with non-dovetail interlocking wedge threads
12/22/1994WO1994029565A1 Multiple-seal underwater pipe-riser connector
12/14/1994CN2185362Y Changeable liquid delivery hose
12/08/1994WO1994028342A1 Dual gasket lined pipe connector
12/07/1994EP0627040A1 Method for overburden drilling, casing shoe and casing tube for the method, and coupling element for the casing tubes
11/1994
11/30/1994EP0626535A1 Quick-joint for rapid, tight-seal connection of pipes, particularly suitable for petroleum pipes
11/15/1994US5363545 Method of producing a coupling for oil country tubular goods
11/09/1994EP0397721B1 Tubular connection having a variable metal-to-metal seal width
11/01/1994US5360242 Pipe connecting assembly and method for joining two lengths of steel pipe by a press-fit connection
11/01/1994US5360239 Threaded tubular connection
10/1994
10/26/1994CN1094145A Structural member of gas-liquid pipeline system
10/25/1994US5358289 Buttress-threaded tubular connection
10/18/1994US5355968 Tool joint stress relief groove
10/18/1994US5355908 Reusable pipe union assembly with automatic fluid flow checking
09/1994
09/21/1994CN2177858Y Adjustable length pipeline sealing jointing sleeve
09/20/1994US5348668 Coating and bonding composition
09/20/1994US5348350 Pipe coupling
09/13/1994CA1331906C High purity, high temperature pipe thread sealant paste
08/1994
08/23/1994CA1331539C Torque position makeup of tubular connections
08/16/1994US5338074 Threaded pipe connection
08/10/1994CN2173888Y Gas thread connection steel-plastic composite pipe and union joint
08/02/1994US5334268 Method of producing high strength sucker rod coupling
07/1994
07/26/1994CA2049741C High pressure port fitting system
07/19/1994US5330239 Pipe coupling
07/05/1994USH1329 Drill collar connections
06/1994
06/22/1994EP0423196B1 Composite thread coupling for reinforced pipe
06/18/1994CA2109854A1 High strength sucker rod coupling
05/1994
05/26/1994WO1994011664A1 Corrosion resistant connection for use with tubular members
05/26/1994DE4239092A1 Electrically testable plastic pipe jointing for underground water - is sealed at two sepd. points by compression of elastic rings into grooves when bevelled ends of pipe encounter collar of sleeve
05/26/1994CA2148498A1 Corrosion resistant connection for use with tubular members
05/25/1994CN2166292Y Screw pipe fitting
05/19/1994DE4317591C1 Gas-tight pipe-union with threaded male half screwing into tapped socket - has annular groove in threaded portion of one half which accommodates distorting sealing ring
05/18/1994CN2165307Y Chemical liquid pipe joint
05/05/1994DE4237218A1 Pipe connector for alignment control - has sleeved insert with inner- and outer threads of different pitch to pull components together.
04/1994
04/14/1994WO1994008168A1 Pipe connecting assembly and method for joining two lengths of steel pipe by a press-fit connection
04/13/1994CN1024209C Hollow drill rods
04/07/1994DE4233304A1 Coupling sleeve for drill or anchor rods - comprises abutment for limiting rod end screwing distance
03/1994
03/31/1994WO1994007072A1 Detachable pipe joint
03/24/1994DE4231084A1 Rohrverbindung Pipe connection
03/17/1994WO1994005893A1 Drill string coupling
02/1994
02/16/1994CN1082158A High torque connecting hoop
02/15/1994US5286393 Coating and bonding composition
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