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:
Oct. 30, 2018
Filed:
Jul. 23, 2015
Ishikawa Gasket Co., Ltd., Minato-ku, Tokyo, JP;
Kisho Yasuda, Tokyo, JP;
ISHIKAWA GASKET CO., LTD., Tokyo, JP;
Abstract
A gasket clamped between two members fastened by a fixture, includes first and second metal plates laminated together to form the gasket, fixture holes formed in the first and second metal plates for inserting the fixture therein, sealing subject holes formed in the first and second metal plates, fastening-stress concentration areas located on the first and second metal plates between the fixture holes and the sealing subject holes where a fastening stress concentrates when the two members are fastened by the fixture, and a linear bead formed on the first metal plate only at the fastening-stress concentration area to reduce the fastening stress when the two members are fastened. The linear bead projects to a side opposite to the second metal plate, and is disposed on an axis line connecting a center of the fixture hole and a center of the sealing subject hole in the first metal plate.