Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1981-07-24
1983-05-03
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 31, 277103, 277111, 277188R, 166 88, 166 83, 285140, 285142, 285147, 277DIG6, E21B 3312, F16J 1548
Patent
active
043818684
ABSTRACT:
An improved heat resistant seal assembly for sealing across an annular recess between the interior of a wellhead member and the exterior of a tubular member including a heat resistant seal ring in the recess, a pressure responsive ring for moving the seal ring into sealing position in the recess, latching means to retain the pressure responsive ring in set position and spring means between the seal ring and the pressure responsive ring to maintain a sealing force on the seal ring.
REFERENCES:
patent: 2737248 (1956-03-01), Baker
patent: 3288493 (1966-11-01), Brown
patent: 3311168 (1967-03-01), Pierce
patent: 3809158 (1974-05-01), Bonds et al.
patent: 4078832 (1978-03-01), Wittman
patent: 4082298 (1978-04-01), Sanford
Croy David G.
Hollingsworth Lee M.
Jolly Richard D.
Tate Mark C.
Williams, Jr. Leonard E.
Cameron Iron Works, Inc.
Ward, Jr. Robert S.
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