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:
May. 20, 2008
Filed:
Sep. 20, 2005
Applicants:
Bhawani Tripathy, Ann Arbor, MI (US);
Daniel J. Vialard, Novi, MI (US);
Inventors:
Bhawani Tripathy, Ann Arbor, MI (US);
Daniel J. Vialard, Novi, MI (US);
Assignee:
Federal-Mogul World Wide, Inc., Southfield, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multilayer metal gasket, such as a multilayer steel head gasket, for an internal combustion engine has upper and lower functional layers and at least one intermediate layer. At least one of these layers has a circumferential compression control feature in the form of a protrusion or groove which varies in thickness or depth, respectively, around its circumference. The variable thickness of the compression control feature enables uniform sealing pressure on the sealing surfaces of the gasket.