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. 07, 1993
Filed:
Oct. 23, 1992
Joseph C Popek, Detroit, MI (US);
TRW Vehicle Safety Systems Inc., Lyndhurst, OH (US);
Abstract
An inflator comprises a source of gas for inflating on inflatable vehicle occupant restraint, such as an air bag. The air bag, when inflated, restrains an occupant of a vehicle during a collision. A burst disk is located to block gas flow into the air bag. A piston is movable from a retracted position to an extended position to rupture the burst disk. The piston includes (i) a first central portion for puncturing the burst disk and (ii) a second portion for cutting out a portion of the burst disk after the first central portion punctures the burst disk. After the second portion of the piston cuts out a portion of the burst disk, the cut out portion of the burst disk is clamped between the piston and a housing part of the inflator.