Threaded tubing seals

Details Threaded tubing seals Threaded tubing seals

1982-07-23

1987-02-17

Arola, Dave W.

Pipe joints or couplings

Particular interface

Tapered

285351, F16L 2500

Patent

active

046434674

ABSTRACT:
Male and female tubing or pipe ends have tapered thread with a sealing profile and a shoulder seal. A tapered end on the male tube cooperates with a tapered plastic compression seal at an internal shoulder in the female end. A modification has a tapered seat seal with complementary tapers at the end of the male connection and in the innermost part of the female connection. A plastic self-energized O-ring seal is positioned partly within an annular recess at the large end of the tapered seat in the female part.

REFERENCES:
patent: 2102072 (1937-12-01), Hinderliter
patent: 2239942 (1971-04-01), Stone et al.
patent: 3266821 (1966-08-01), Safford
patent: 3359013 (1967-12-01), Knox et al.
patent: 3427050 (1969-02-01), Krieg
patent: 3508771 (1970-04-01), Duret
patent: 3572777 (1971-03-01), Blose
patent: 3870351 (1975-03-01), Mutsuki

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