Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Donald L. Bartell, Jr.0
Joseph E. Lescovich0
William J. Nicholl0
Date of Patent
July 31, 2007
Patent Application Number
11117637
Date Filed
April 28, 2005
Patent Primary Examiner
Patent abstract
An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator.
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