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. 23, 1997
Filed:
May. 21, 1996
Yoshio Miyaoh, Tokyo, JP;
Susumu Inamura, Utsunomiya, JP;
Ishikawa Gasket Co., Ltd., Tokyo, JP;
Abstract
A metal laminate gasket of the invention is used for an internal combustion engine. The gasket is formed of first and second metal plates extending substantially throughout an entire area of the gasket. The first plate includes a main portion, a curved portion for defining a first hole, and a flange extending from the curved portion. The second plate is situated under the main portion of the first plate, and includes a second hole in which the curved portion is located, an inner portion situated around the second hole and disposed on the flange, and a recess formed in the inner portion around the second hole to form a thin portion. At least one bead is formed on at least one of the first and second metal plates to surround the hole of the engine to seal the same. The surface pressure of the gasket around the hole can be adjusted by regulating the thickness of the thin portion.