Hydraulic sleeve valve with position indication, alignment,...

Details Hydraulic sleeve valve with position indication, alignment,... Hydraulic sleeve valve with position indication, alignment,...

2009-01-12

2010-12-07

Neuder, William P (Department: 3672)

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

C166S334400

Reexamination Certificate

active

07845416

ABSTRACT:
A hydraulic sleeve valve that includes a valve position indication system that provides an indication that the valve has reached a predetermined position, such as, for example, the fully opened or fully closed condition. The hydraulic sleeve valve may include a bypass relief system and may also provide a valve control fluid circulation function to filter or otherwise manipulate the control fluid.

REFERENCES:
patent: 4044834 (1977-08-01), Perkins
patent: 7367393 (2008-05-01), Vachon
patent: 2005/0263279 (2005-12-01), Vachon

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