Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16L - Pipes; Joints or fittings for pipes; Supports for pipes, cables or protective tubing; Means for thermal insulation in general › F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints
Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444)
04/1986
04/15/1986US4582349 Plastically deformed seals in downhole tools
04/15/1986US4582348 Pipe connector with varied thread pitch
04/15/1986EP0114856A4 Luer connection system.
04/15/1986CA1203267A1 Screw coupling joint
04/10/1986WO1986002137A1 Metal-to-metal wedge thread coupling connector
04/10/1986WO1986002123A1 Method and device for screwing a threaded joint for a pipe, and provided with a stop
04/10/1986CN85108215A Device and method for fastening screw-threaded pipe joints with locating means
04/01/1986CA1202565A1 Tubular connection
03/1986
03/25/1986US4577895 Pipe joint having pressure activated sealing means
03/12/1986EP0173691A1 Pipe joint.
02/1986
02/27/1986WO1986001252A1 Well pipe joint
02/25/1986US4572551 Fluid connector
02/18/1986US4571112 Joint assembly
02/18/1986US4570982 Tubular joint with trapped mid-joint metal-to-metal seal
02/05/1986EP0170553A1 Pipe joint shoulder facing method and device
02/04/1986US4568113 Pipe connection
02/04/1986CA1200260A1 Synthetic plastic pipe coupling and method of assembly
01/1986
01/14/1986US4564226 System and method for increasing wall thickness on end of pipe on which thread is to be fabricated
01/14/1986US4564225 Multiple lead threading
12/1985
12/31/1985US4561683 Pipe connector with interengageable tubular pin and tubular box members
12/11/1985EP0163958A1 Corrosion-resistant pipe coupling structures
12/11/1985EP0163957A1 Corrosion-resistant pipe coupling structures
12/04/1985EP0163252A1 Pipe screwing with contacting seal
11/1985
11/19/1985US4553614 Compensation device for insertion in a drill string for deep-well drilling tools
11/12/1985CA1196663A1 Coupling and sealing system, resistant to high pressures and mechanical stress, between two cylindrical elements
11/05/1985US4550937 Joint for steel tubes
10/1985
10/29/1985US4549754 Tool joint
10/23/1985EP0159242A1 Steel tube joint, tooling and method of obtaining greater precision
10/22/1985US4548431 Tool joint with internal/external make-up shoulders
10/16/1985EP0158030A1 Medical instrument
10/15/1985US4547004 Coupling
10/09/1985EP0157587A2 Oil well pipe joint
10/01/1985CA1194411A1 Combined metal and elastomer seal
09/1985
09/24/1985CA1194055A1 Pipe joint
09/11/1985EP0154588A1 Process of carrying out dismountable joints and ensuring a fluid-tight seal to high-pressure pipes and related pipe joints
09/10/1985US4540314 Tension leg means and method of installing same for a marine platform
09/03/1985US4538840 Connector means for use on oil and gas well tubing or the like
08/1985
08/29/1985WO1985003757A1 Pipe joint
08/28/1985EP0153224A1 Procedure and device for determining the fastening torque of a tubular joint provided with a conical screwthread and a fastening limit stop, usable in the petrol industry
08/28/1985EP0152617A2 Sealing device
08/27/1985US4537429 Tubular connection with cylindrical and tapered stepped threads
08/27/1985US4537428 Joint and joint components for pipe sections subjected to axial compression loads
08/27/1985US4537406 Method for providing a gas and fluid-tight seal for a joint
08/14/1985EP0151365A2 Pre-set torque limiter sub
08/13/1985US4534585 For flowlines or well casings subjected to reversible rotation
08/13/1985US4534414 Hydraulic control fluid communication nipple
08/07/1985EP0150657A2 Tubular connection having a parallel chevron thread
07/1985
07/31/1985EP0149612A1 Tubular connection with cylindrical and tapered stepped threads.
07/30/1985US4531767 Connecting piece for a line or an apparatus to be screwed therein to provide a closed pressure-fluid circuit and method of manufacturing same
07/30/1985CA1191172A1 Screw coupling joint
07/18/1985WO1985003104A1 Protection device for threads and thrust-forming seal bearings of metal tubes
07/17/1985EP0148807A1 Protector for pipe threads and abutment surfaces
07/09/1985US4527815 Use of electroless nickel coating to prevent galling of threaded tubular joints
07/03/1985EP0147358A2 Tubular connection having a chevron wedge thread
06/1985
06/25/1985US4525001 Pipe connector with interengagable tubular pin and tubular box members
06/20/1985WO1985002651A1 Tubular connection
06/19/1985EP0145364A1 Conduit coupling assembly
06/11/1985US4522431 Self-aligning connector assembly
06/11/1985CA1188719A1 Self-aligning connector assembly
06/04/1985US4521042 Threaded connection
06/04/1985US4521040 Combined metal and elastomer seal
05/1985
05/08/1985EP0140364A2 Threaded joint for pipe ends with external thread
05/02/1985EP0139565A1 Conical thread configuration for rapid make-up connection
04/1985
04/23/1985CA1185945A1 Joint assembly
04/02/1985US4508375 Tubular connection
03/1985
03/26/1985US4506432 Method of connecting joints of drill pipe
03/26/1985CA1184585A1 Connector
03/12/1985CA1183886A1 Pipe connectors
03/12/1985CA1183773A1 Oil well casing and tubing joint and production of same
02/1985
02/26/1985US4501443 Fluidtight pipe joint
02/26/1985US4501058 Method of pre-stressing a structural member
02/12/1985CA1182490A1 Tool joint with internal/external make-up shoulder
02/05/1985CA1182147A1 Corrosion-resistant pipe coupling structures
01/1985
01/29/1985US4496175 Hydril-type connector
01/29/1985US4496174 Insulated drill collar gap sub assembly for a toroidal coupled telemetry system
01/23/1985EP0131956A1 Screw pipe socket
01/23/1985EP0131621A1 Tubular joint with trapped mid-joint metal to metal seal.
01/22/1985US4494777 Closed angle thread pipe joint
01/15/1985CA1180991A1 Synthetic resin inner tube element for dual tube core drill
12/1984
12/25/1984US4489963 Pipe joint
12/18/1984US4488738 Synthetic plastic pipe coupling and method of assembly
12/11/1984US4487433 Anti-rotation coupling
12/11/1984CA1179255A1 Heat resistant sealing assembly
12/05/1984EP0127560A2 Threaded coupling comprising a ventable seal
11/1984
11/27/1984US4484615 Electro-magnetic stirring
11/22/1984WO1984004575A1 Pipe joint
11/20/1984US4484241 Automatic lock for head-carriage assembly in a disk file
11/08/1984WO1984004352A1 Tubular connection with cylindrical and tapered stepped threads
11/08/1984WO1984004351A1 Improved tubular connection
10/1984
10/30/1984US4479531 Electromagnetic stirring
10/24/1984EP0122259A1 Pipe string tie-back connector
10/17/1984EP0121669A2 Compensation device for insertion in a drill string for deep-well drilling tools
10/02/1984US4474651 Oil well casing and tubing joint and production of same
10/02/1984CA1175412A1 Insulated drill collar gap sub assembly for a toroidal coupled telemetry system
09/1984
09/25/1984US4473245 Pipe joint
09/11/1984US4470448 Electromagnetic stirring
09/04/1984US4469338 Gasket disposed between an apparatus and a threaded coupling for pipe conveying high pressure fluid
08/1984
08/21/1984CA1173076A1 Thread-type pipe connector
08/15/1984EP0115542A1 Tapered threaded member with guide
08/14/1984CA1172421A1 Electromagnetic stirring
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