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. 02, 2014
Filed:
May. 07, 2007
Applicant:
Toshihiro Imai, Tokyo, JP;
Inventor:
Toshihiro Imai, Tokyo, JP;
Assignee:
Ishikawa Gasket Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 11/00 (2006.01); F16J 15/08 (2006.01);
U.S. Cl.
CPC ...
F16J 15/0825 (2013.01); F16J 2015/085 (2013.01); F16J 2015/0862 (2013.01);
Abstract
A metal gasket includes first and second metal plates laminated together to form the metal gasket, and having holes to be sealed. At least one of the first and second metal plates has a half bead surrounding the hole. A surface pressure assistance plate is located at least adjacent to the half bead between the first and second metal plates. The assistance plate has depressions and projections with respect to a thickness direction thereof in at least a peripheral part thereof.