E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/04 (2006.01)
Patent
CA 2664282
A reusable metal seal for a wellhead provides a metal-to-metal seal and includes upper and lower tapered sealing flanks which may be deflected by tapered wall surfaces on the wellhead engaging the taper sealing flanks, and the seal may have a plurality of annular relief grooves.
Farquharson Keith D.
Guo Tianle
Lam Tony M.
Lang Heinrich
Schneider Kevin Paul
Mckay-Carey & Company
Stream-Flo Industries Ltd.
Stream-Flo Usa Inc.
LandOfFree
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