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. 31, 2000
Filed:
Sep. 08, 1998
Yoshio Miyaoh, Tokyo, JP;
Ishikawa Gasket Co., Ltd., Tokyo, JP;
Abstract
A metal laminate gasket for an internal combustion engine is formed of first, second and third metal plates. The first metal plate includes a base portion, a curved portion extending from the base portion to define a hole for a cylinder bore, and a flange extending from the curved portion and disposed under the base portion. The flange has a plurality of wide flange portions and narrow flange portions alternately arranged to each other such that the wide flange portions are located near bolt holes arranged around the cylinder bore to support high tightening pressures applied thereto. The second plate is situated under the base portion, and has a first bead formed around the cylinder bore and disposed between the base portion and the flange. The third plate is situated between the base portion and the second metal plate, and is located outside the flange. The tightening pressures by bolts are supported by the wide and narrow flange portions to securely seal around the cylinder bore.