E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/51.3
E21B 33/12 (2006.01) E21B 33/03 (2006.01) E21B 33/04 (2006.01) F16J 15/02 (2006.01) E21B 33/00 (2006.01)
Patent
CA 1179255
Heat Resistant Sealing Assembly Abstract of the Disclosure An improved seal assembly being suitable for a wellhead, being heat resistant and including a heat resistant seal ring, spring means loading the seal ring, pressure responsive means for setting the seal ring and latch means to retain the seal ring in sealing position.
402673
Croy David G.
Hollingsworth Lee M.
Jolly Richard D.
Tate Mark C.
Williams Leonard E. Jr.
Cameron Iron Works Inc.
Smart & Biggar
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