The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2007
Filed:
Apr. 28, 2005
Applicants:
Donald L. Bartell, Jr., Beaver Falls, PA (US);
Joseph E. Lescovich, Pittsburgh, PA (US);
William J. Nicholl, Pittsburgh, PA (US);
Inventors:
Donald L. Bartell, Jr., Beaver Falls, PA (US);
Joseph E. Lescovich, Pittsburgh, PA (US);
William J. Nicholl, Pittsburgh, PA (US);
Assignee:
GA Industries, Inc., Cranberry Township, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 31/05 (2006.01); F16K 31/48 (2006.01);
U.S. Cl.
CPC ...
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.