Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Alfred R. Curington0
Timothy R. Tips0
Date of Patent
October 11, 2016
0Patent Application Number
140525540
Date Filed
October 11, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A valve for use in a tubular string in a subterranean well includes a sleeve having first and second opposite ends, the sleeve being displaceable between open and closed positions to thereby selectively permit and prevent flow through a sidewall of a housing assembly, and a first and second pistons at the respective first and second ends of the sleeve. Pressure differentials applied to the first and second pistons are operative to displace the sleeve between its open and closed positions.
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