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:
Jan. 25, 1994
Filed:
Jul. 24, 1991
Kenichi Sekioka, Neyagawa, JP;
Kunitoshi Inoue, Yokohama, JP;
Nippon Gasket Co., Ltd., Osaka, JP;
Abstract
A structure for finding wrong assemblage of the metallic laminate type gasket according to the present invention is composed of a plurality of component sheets overlapping each other, in which small holes for finding wrong assemblage in number one less than the number of sheets to be laminated are bored on each sheet at a part so that, unless any one of the sheets is absent, the small holes are prevented from joining in line like one through hole, whereby whether lamination of the sheets is as complete as designed or not can be confirmed and, when any one of the sheets is absent and small holes join in line like one through hole to pierce through all sheets, wrong assemblage can be confirmed by mechanical or electrical means.