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:
Oct. 21, 2008
Filed:
Feb. 03, 2005
Applicants:
Eric W. Hesher, Avilla, IN (US);
Robert W. Lehmann, Fort Wayne, IN (US);
Inventors:
Eric W. Hesher, Avilla, IN (US);
Robert W. Lehmann, Fort Wayne, IN (US);
Assignee:
Dana Automotive Systems Group, LLC, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 9/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A valve stem seal having an annular valve body with an upper surface, a lower surface, and defining an aperture is disclosed. The valve body is positioned for selective sealing engagement with a valve stem. At least one orifice is disposed on an inner surface of the annular valve body between the annular valve body and the valve stem. The orifice controls the rate of oil flow between the annular valve body and the valve stem.