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:
Jun. 29, 2004
Filed:
May. 28, 2002
Yuichi Nanbu, Shiga, JP;
Takata Corporation, Tokyo, JP;
Abstract
An inflator including a piston which can reliably break a sealing plate. The inflator includes a piston which is two-forked at an end thereof and is provided with two cutting edges. The cutting edges come into contact with portions of a sealing plate which swells toward the piston side by being pushed by a high-pressure gas stored in a bottle. The portions being offset from the vertex of the swelling sealing plate. Each cutting edge is tapered at the outer side thereof, and the tip of the cutting edge is thereby positioned at the inner side of the periphery of the piston. The angle formed between the axis of each cutting edge and the surface of the sealing plate is increased. Deformation of the cutting edges toward the outside and slip thereof along the spherical surface can be suppressed.