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. 27, 2011
Filed:
Apr. 23, 2009
Mark Stephen Kozdras, Fergus, CA;
Jeff Sheppard, Milton, CA;
Robert Arundine, Windsor, CA;
Silvio Tonellato, Mississauga, CA;
Dario Bettio, Mississauga, CA;
Mark Stephen Kozdras, Fergus, CA;
Jeff Sheppard, Milton, CA;
Robert Arundine, Windsor, CA;
Silvio Tonellato, Mississauga, CA;
Dario Bettio, Mississauga, CA;
Dana Canada Corporation, Oakville, CA;
Abstract
A valve that includes a housing defining first and second bores having a central axis, and a peripheral valve seat. An actuator is located in the first bore and has a reciprocating seal disposed for movement along the central axis for engaging the valve seat and closing the valve. A coiled return spring is mounted in the housing for urging the reciprocating seal towards the chamber to open the valve, the return spring having a first end connected to the reciprocating seal and a second end engaging a spring support in the housing facing the first bore. The return spring may have a larger diameter at its second end than its first end. The housing may include a third bore in communication with the second bore and having a different cross-sectional area than the second bore. The return spring could be supported by a discrete spring support located in one of the bores.