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:
Aug. 18, 1998
Filed:
Dec. 04, 1996
John P O'Loughlin, Mesa, AZ (US);
James R Hocking, Chandler, AZ (US);
TRW Vehicle Safety Systems Inc., Lyndhurst, OH (US);
Abstract
An air bag inflator (20) comprises a container (40) defining a chamber (48) for storing inflation fluid at a first pressure. A rupturable closure or rupture disk (102) extends across an opening (60) in the container (40). Each one of a pair of inflation fluid heating assemblies (122, 124) is located in the chamber (48) and includes an actuatable igniter (222) and an ignitable material (168). The igniter (222) in one inflation fluid heating assembly (122) upon actuation, ignites the ignitable material (168) in the one inflation fluid heating assembly to produce combustion products. The combustion products heat the inflation fluid and increase the pressure of the inflation fluid in the chamber (48) to a second pressure to rupture the rupture disk (102). The igniter (222) in the other inflation fluid heating assembly (124), upon actuation, ignites the ignitable material in the other inflation fluid heating assembly to produce combustion products which further heat and further increase the pressure of the inflation fluid in the chamber (48).