Multi-start wedge thread for tubular connection

Details Multi-start wedge thread for tubular connection Multi-start wedge thread for tubular connection

1998-08-06

2000-12-12

Browne, Lynne H.

Pipe joints or couplings

Particular interface

Tapered

285390, 29456, F16L 1500

Patent

active

061587850

ABSTRACT:
A threaded pipe connection includes a box member and a pin member. The box member has multiple internal, generally dovetail-shaped threads, each with stab flanks, load flanks, roots, and crests. The pin member also has multiple external, generally dovetail-shaped threads, each with stab flanks, load flanks, roots, and crests. The internal threads of the box member each increase in width in one direction, while the external threads of the pin member increase in width in the other direction so that the complementary flanks of the respective threads move into engagement upon make-up of the connection.

REFERENCES:
patent: 2239942 (1941-04-01), Stone et al.
patent: 2992028 (1961-07-01), Knox
patent: 3359013 (1967-12-01), Knox et al.
patent: 3989284 (1976-11-01), Blose
patent: 4564225 (1986-01-01), Taylor
patent: 4582348 (1986-04-01), Dearden et al.
patent: 4707001 (1987-11-01), Johnson
patent: 4735444 (1988-04-01), Skipper
patent: 4917409 (1990-04-01), Reeves
patent: 5360240 (1994-11-01), Mott
patent: 5415442 (1995-05-01), Klementich

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