Dual stage inflator

A device is provided for increasing the surface area of the gas generant used in an automotive safety air bag module (50). Depending on crash conditions, the surface area of the gas generant is increased by shattering the gas generant wafers (80). One embodiment utilizes a squib having a high brisan...

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Bibliographic Details
Main Author HOCK, CHRISTOPHER
Format Patent
LanguageEnglish
French
German
Published 07.09.1994
Edition5
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:A device is provided for increasing the surface area of the gas generant used in an automotive safety air bag module (50). Depending on crash conditions, the surface area of the gas generant is increased by shattering the gas generant wafers (80). One embodiment utilizes a squib having a high brisant zone which upon activation shatters the gas generant wafers. Alternatively, a dual function squib (104) is used which can produce mechanical forces which force a breaking object (108) to impact on the gas generating wafers thereby shattering them and increasing the surface area of the gas generant.
Bibliography:Application Number: EP19930310191