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:
Sep. 14, 1999
Filed:
Sep. 25, 1995
Kosaku Ueta, Kumagaya, JP;
Japan Metal Gasket Co., Ltd., , JP;
Abstract
An edge of a cylinder bore hole of a base plate is folded back on the base plate to form a double-layer folded portion, and a soft member is held in the inside of the folded portion. Folded portions are also formed by folding an outer peripheral edge of the base plate at positions along a straight line which passes through center points of bolt holes which are located at each side of a reference line passing through center points of cylinder bore holes. The straight line is parallel with the reference line. Further folded portions are formed by folding the outer peripheral edge of the base plate at positions along a further straight line which passes through center points of bolt holes which are located at both sides of the reference line so that the further straight line is orthogonal to the the reference line. Rubber beads made of silicon rubber are formed on both joining surfaces of the base plate to bound each of the cylinder bore holes and the bolt holes.