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:
Mar. 15, 2016
Filed:
Apr. 17, 2012
Shinichi Hirayama, Saitama, JP;
Akinori Sueyoshi, Saitama, JP;
Yosuke Matsumoto, Saitama, JP;
Akihiro Ito, Saitama, JP;
Shinichi Hirayama, Saitama, JP;
Akinori Sueyoshi, Saitama, JP;
Yosuke Matsumoto, Saitama, JP;
Akihiro Ito, Saitama, JP;
NIPPON LEAKLESS INDUSTRY CO., LTD., Tokyo, JP;
Abstract
There is provided a metal gasket that is at low cost yet with high sealing performance. A metal gasketincludes at least one metal gasket substratehaving a circumferential beadformed circumferentially around a cylinder hole. The circumferential beadincludes a first bead portionformed of a pair of inclined wallseach extending from the gasket substrate to a tip end, the tip ends of the pair of the inclined walls being spaced from each other, and a second bead portionextending from the tip ends of the inclined wallsin a direction opposite to the protruding direction of the inclined walls. The following relationships are satisfied: Fh>Fh, and W>W, where Fhis a height of the first bead portion, Fhis a height of the second bead portion, Wis a half of a width of the circumferential bead, and Wis a width of the second bead portion