F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 25/00 (2006.01) E21B 34/06 (2006.01) E21B 34/14 (2006.01) F16K 5/06 (2006.01) F16K 5/18 (2006.01)
Patent
CA 2106923
A metal valve, has a body with flow passages and curved internal sealing surfaces and a valve member with a flow passage and external curved sealing surfaces. Both the body and valve member sealing surfaces axe curved as a portion of the involute of a circle and are sealingly engageable. The valve member is mounted in the body for rotation between open and closed positions, permitting and preventing flow through valve.
Halliburton Energy Services Inc.
Riches Mckenzie & Herbert Llp
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