Valve apparatus

Details Valve apparatus Valve apparatus

E - Fixed Constructions

21

B

166/41

E21B 43/12 (2006.01) E21B 34/12 (2006.01) E21B 34/00 (2006.01)

Patent

CA 1134741

1-PA-US TITLE: VALVE APPARATUS ABSTRACT OF THE INVENTION A valve apparatus is provided for use in a subterranean well and is responsive to manipulation of a fluid transmission conduit to manipulate a valve head relative to a valve seat between open and closed positions, the valve head means comprising camway slot means defined exteriorly thereon. Camway ball means are secured to the valve seat means and carriable in the camway slot means to pivot the valve head means as the head is rotated relative to its seat.

347673

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