Threaded pipe connection

Details Threaded pipe connection Threaded pipe connection

1996-12-02

1998-08-18

Melius, Terry Lee

Pipe joints or couplings

With indicator, alarm or inspection means

285330, 285334, F16L 3500

Patent

active

057949859

ABSTRACT:
A threaded pipe connection is disclosed for connecting two joints of pipe having externally threaded pin members, one pin member having external right-hand threads and the other pin member having left-hand threads. An internally threaded coupling having right and left-hand threads that mates with the threads on the pin members. An internal pressure seal ring is positioned to provide a seal between the ends of the pin members. A plurality of mating lugs and grooves on the ends of the pin members hold the pins from relative rotation when the connection is being made up. A metal-to-metal seal located between each pin member and the coupling adjacent each end of the coupling isolates the threads of the connection from the ambient environment thus sealing off the pipe annulus from external pressure due to hydrostatic head. Indicia such as engaging surfaces or aligned scribe lines on the pin members ensure that the sealing surfaces on the coupling and the pin members that form the external seals are positioned to properly engage and form seals when the connection is made up.

REFERENCES:
patent: 1054812 (1913-03-01), Zierath
patent: 1781091 (1930-11-01), Wilson
patent: 2296198 (1942-09-01), Boynton
patent: 2380690 (1945-07-01), Graham
patent: 2464744 (1949-03-01), Fennema
patent: 3468563 (1969-09-01), Duret
patent: 3476409 (1969-11-01), Benteler et al.
patent: 4317585 (1982-03-01), Boice
patent: 4537428 (1985-08-01), Landriault
patent: 4712815 (1987-12-01), Reeves
patent: 4762344 (1988-08-01), Perkins et al.
patent: 4813497 (1989-03-01), Wenzel
patent: 4962579 (1990-10-01), Moyer et al.
patent: 5040827 (1991-08-01), Delange
patent: 5048871 (1991-09-01), Pfeiffer et al.
patent: 5474334 (1995-12-01), Eppink
patent: 5609440 (1997-03-01), Roche
Offshore Technology Conference Paper OTC 4514 "Differential Thread Riser Coupling for TP and Platform Tieback Applications", 1983.

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