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:
Sep. 05, 2000
Filed:
Apr. 20, 1998
Applicant:
Inventors:
Matthew Jeremy Lieb, Northbrook, IL (US);
Thomas J Molitor, Arlington Heights, IL (US);
Assignee:
Fel-Pro Incorporated, Skokie, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277590 ; 277592 ; 277594 ; 277596 ; 277938 ;
Abstract
A cylinder head gasket has at least one combustion opening, a central metallic core and an expanded graphite facing layer on each side of the core. A stress rising bead is disposed on at least one of the graphite layers encircling each combustion opening for sealing around the combustion openings.