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:
Mar. 26, 1991
Filed:
Feb. 14, 1989
Tetsushi Hiramitsu, Ichinomiya, JP;
Satoshi Ohno, Inazawa, JP;
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Abstract
An air bag device is provided on upper side of a boss portion. The air bag device comprises an air bag, an inflater supplying gas to the air bag, a backup plate holding the air bag and the inflater, and a pad in box shape for covering the air bag. A thin breaking portion is formed on an upper wall of the pad so as to break the upper wall in state of connecting the upper wall to the side wall when the air bag is expanded, and a plurality of membrane switches comprising a pair of electrodes in thin film shape are arranged at portions of the upper wall of the pad except for the breaking portion. A connector connected to a prescribed electric circuit at lower side of the boss portion and the membrane switches are electrically connected by lead wires arranged along a pad side wall portion in state of connecting the pad upper wall when the pad upper wall is broken.