F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 47/12 (2006.01) E21B 43/12 (2006.01)
Patent
CA 2431280
A bypass valve for a gas lift plunger includes a cylindrical valve having opposed ends, a circumferential sidewall and a first flow through aperture which extends through the circumferential sidewall. A body is provided with a cylindrical valve seat and a second flow through aperture. The cylindrical valve is rotatable relative to the valve seat. When the cylindrical valve is rotated to a first position the first flow through aperture and the second flow through aperture are in register thereby permitting gas to flow through. When the cylindrical valve is rotated to a second position, the first flow through aperture and the second flow through aperture are out of register and the flow of gas is restricted. An activation sleeve which overlies the body is used to move the cylindrical valve between the first position and the second position.
Thompson Douglas B.
Vermeeren Thomas Hubert
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