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:
Oct. 18, 1994
Filed:
May. 25, 1993
Roger F Wells, Yorbalinda, CA (US);
TRW Technar Inc., Irwindale, CA (US);
Abstract
An apparatus (10) for use in inflating a vehicle occupant restraint (12) includes a pressure vessel (14) and a leakage detecting assembly (68). The pressure vessel (14) stores gas, and has a closure wall (40) which ruptures to release the gas from the pressure vessel (14) to inflate the vehicle occupant restraint (12). The closure wall (40) is movable under the influence of a change in the gas pressure within the pressure vessel (14). The leakage detecting assembly (68) senses movement of the closure wall (40) which occurs under the influence of a change in the gas pressure that is caused by leakage from the pressure vessel (14). The leakage detecting assembly (68) generates an electrical signal in response to such movement of the closure wall (40). The leakage detecting assembly (68) does not generate the electrical signal in response to movement of the closure wall (40) which occurs under the influence of a change in the gas pressure that is caused by a change in the ambient temperature of the pressure vessel (14).