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. 29, 2012
Filed:
Oct. 07, 2008
Toshihiro Imai, Tokyo, JP;
Toshihiro Imai, Tokyo, JP;
Ishikawa Gasket Co., Ltd., Tokyo, JP;
Abstract
A metal gasket includes at least one structural plate having a sealing bore and bolt holes located around the seal bore. An inner bead is formed on the at least one structural plate to surround the sealing bore. The inner bead has first neighboring portions near the bolt holes and first outer portions outside the first neighboring portions. The first neighboring portion has a compression resistance smaller than that of the first outer portion. An outer bead is formed on the at least one structural plate to surround the inner bead such that the bolt holes are located inside thereof. The outer bead has second neighboring portions near the bolt holes and second outer portions outside the second neighboring portions. The second neighboring portion has a compression resistance greater than that of the second outer portion.