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:
Jul. 18, 2000
Filed:
Mar. 09, 1998
Applicant:
Inventor:
Tsunekazu Udagawa, Ichikawa, JP;
Assignee:
Ishikawa Gasket Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ; F02F / ;
U.S. Cl.
CPC ...
277593 ; 277595 ;
Abstract
A metal gasket of the invention is used for an internal combustion engine. The gasket is basically formed of one metal plate extending substantially throughout an entire area of the engine to be sealed. The gasket includes a plurality of cylinder bores and a plurality of liquid holes. At least one corrugated bead is formed in the metal plate to be located around at least one of the liquid holes without forming corrugated beads around all of the liquid holes. The corrugated bead is formed at a portion where a surface pressure sufficient to seal around a liquid hole is not obtained.