Joint for pipe intended for petroleum industry

Details Joint for pipe intended for petroleum industry Joint for pipe intended for petroleum industry

1980-10-28

1983-02-15

Arola, Dave W.

Pipe joints or couplings

With casing, lining or protector

Lined

285334, 285351, 285369, 2853824, F16L 914

Patent

active

043737501

ABSTRACT:
A joint for pipes in which externally threaded male members are screwed into an internally threaded sleeve. The ends of the male members have sealing surfaces thereon and are substantially cylindrical and thread-free. The ends are so formed that upon abutment they will be urged radially outwardly. The threaded sleeve has a substantially thread-free cylindrical sealing surface intermediate its ends. When the male members are screwed into the sleeve the ends abut causing the sealing surfaces of the male members to be forced radially outwardly into tighter sealing engagement with the sealing surface of the sleeve.

REFERENCES:
patent: 2239942 (1941-04-01), Stone et al.
patent: 2258066 (1941-10-01), Oyen
patent: 2450453 (1948-10-01), Boehm
patent: 2467413 (1969-09-01), Modrelle
patent: 2574081 (1951-11-01), Abeyg
patent: 3489437 (1970-01-01), Duret
patent: 3870351 (1975-03-01), Motsuki
patent: 4262941 (1981-04-01), Lalikos et al.

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