Tubular connection having a chevron wedge thread

Details Tubular connection having a chevron wedge thread Tubular connection having a chevron wedge thread

1983-12-23

1986-07-15

Husar, Cornelius J.

Pipe joints or couplings

Particular interface

Tapered

2853324, 285390, 285333, 411411, 411423, F16L 1500

Patent

active

046002243

ABSTRACT:
A thread form for a tubular connection of the type having a pin member adapted to be made up with a box member to form a pipe joint is shown. The pin member has pin threads with thread crests and thread roots which are adapted to be made up with a mating box member having a complimentary thread structure. The pin thread crests are formed between a stab flank and a load flank of the pin thread. The pin thread has a chevron-shaped load flank for engaging a mating chevron-shaped load flank of the complimentary box member to provide a chevron type interfit between the load bearing load flanks of the pin and box threads. The pin and box threads are also helically structured as a wedge. The chevron type interfit serves to limit the radial movement of the pin threads into the mating box member complimentary thread structure to control the radial make up of the pipe joint.

REFERENCES:
patent: Re30647 (1981-06-01), Blose
patent: 137777 (1919-08-01), Pickard
patent: 671274 (1901-04-01), Fischer
patent: 1474375 (1923-11-01), Moore
patent: 2543100 (1948-12-01), Engh
patent: 2893759 (1959-07-01), Blose
patent: 3069960 (1962-12-01), Baubles
patent: 3224799 (1965-12-01), Blose
patent: 3572777 (1969-05-01), Blose
patent: 4161332 (1979-07-01), Blose
patent: 4192533 (1980-03-01), Blose
patent: 4244607 (1981-01-01), Blose
patent: 4549754 (1985-10-01), Saunders et al.

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