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:
Dec. 11, 2018
Filed:
Jan. 21, 2014
Applicant:
Numatics, Incorporated, Novi, MI (US);
Inventors:
Terry John Hessling, Morrice, MI (US);
Scott Andrew Menko, Linden, MI (US);
Michael Paul Brown, Fenton, MI (US);
Assignee:
Asco, L.P., Novi, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 31/12 (2006.01); B60C 23/12 (2006.01); B60C 29/00 (2006.01); F16K 15/14 (2006.01); F16K 15/20 (2006.01); F16K 31/126 (2006.01);
U.S. Cl.
CPC ...
F16K 31/1264 (2013.01); B60C 23/12 (2013.01); B60C 29/002 (2013.01); F16K 15/141 (2013.01); F16K 15/147 (2013.01); F16K 15/20 (2013.01);
Abstract
A pressure controlled valve assembly has a housing with a pressure controlled valve moveable between an open and closed position with respect to a valve seat for controlling communication between a pneumatic supply and a pneumatic pressure control source. The housing also has first and second passageways with a pair of check valves in each passageway. Each passageway is connectable to a reversible pump such that when the pump operates in one direction one pair of check valves allow flow while the other pair of check valves prevents backflow.