Patents for F16L 15 - Screw-threaded joints; Forms of screw-threads for such joints (5,444)
02/1980
02/26/1980US4189821 Method of manufacturing screw jack tubes
01/1980
01/08/1980CA1069467A1 Automatic subway coupler
07/1979
07/31/1979CA1059551A1 Dovetail connection for pin and box joints
07/31/1979CA1059550A1 Removable locking connector for luer fittings
07/17/1979US4161332 Dovetail connection for pin and box joints
07/11/1979EP0002689A1 Heat exchange tube
06/1979
06/26/1979CA1057332A1 Thread making fitting for unthreaded conduit
05/1979
05/15/1979US4154466 Pipe section and coupling
05/08/1979US4153283 Casing joint
01/1979
01/23/1979CA1046894A1 Adjustable drop nipple
01/09/1979US4133095 Treating, including induction heating of well pipe connections
11/1978
11/28/1978US4127343 Inner tube for screw jack
11/21/1978CA1042943A1 Tubular connection
11/07/1978US4124229 Rigid connector for pipe and method of making the same
10/1978
10/24/1978US4121862 Pipe connection
10/17/1978CA1040682A1 Casing joint
09/1978
09/12/1978US4113290 Pressure tight joint for a large diameter casing
09/05/1978CA1037946A1 Tool joint wear protectors
07/1978
07/11/1978US4099745 Drill pipe joint
06/1978
06/06/1978US4093281 Method and apparatus for axially loading threaded connectors
06/06/1978US4093280 Synthetic resinous pipe joint made up in one-piece with a metallic male screw
04/1978
04/25/1978US4085951 Hydril-type connector
03/1978
03/28/1978US4081083 Automatic subway coupler
03/21/1978US4079966 Insulated self-threading fitting
12/1977
12/20/1977US4063756 Self-locking connector
11/1977
11/29/1977US4060264 Swivel conduit coupling assembly
10/1977
10/18/1977US4054305 Thread making fitting for unthreaded conduit
09/1977
09/27/1977US4050722 Joint for conduit
09/06/1977US4046479 Removable locking connector for luer fittings
07/1977
07/05/1977US4033615 Port thread
07/05/1977US4033167 Process for forming intermediate metal conduit
03/1977
03/29/1977US4014568 Pipe joint
03/01/1977US4009893 Tubing or casing joint
02/1977
02/01/1977US4005735 Adapter with thread protector
01/1977
01/25/1977US4004832 Thread form for pipe joints
01/11/1977US4002359 Tool joint for drill pipes
12/1976
12/28/1976US3999781 Universal swivel hose coupling
11/1976
11/30/1976US3994516 Telescoping pipe coupling with improved pressure seal connection threads
11/23/1976US3993368 Tool joint wear protectors
11/02/1976US3989284 Tubular connection
10/1976
10/19/1976US3986583 Force transmitting coupling
08/1976
08/31/1976US3977428 Vacuum sealing apparatus
05/1976
05/18/1976US3957113 Pipe disconnecting apparatus
05/11/1976US3956533 Method of applying a sealant to parts to be connected
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