E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
285/63, 166/68
E21B 17/08 (2006.01) E21B 17/042 (2006.01) F16L 15/06 (2006.01)
Patent
CA 1202565
Abstract of the Disclosure A connection for well tubular goods including a male member, a female member, each having a double set of steep tapered hook threads, two internal pressure seals including a compressible primary metal-to-metal seal and a supplementary seal made up of a resilient corrosion resistant material and additionally, a primary resilient corrosion resistant external pressure seal, and a reverse shoulder engagement between the end of the male member and a shoulder on the female member to hold the primary metal sealing surfaces in sealing engagement.
441078
Quanex Corporation
Smart & Biggar
LandOfFree
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