Dual stage inflator

Details Dual stage inflator Dual stage inflator

1994-06-22

1995-03-21

Focarino, Margaret A.

Land vehicles

Wheeled

Attachment

280741, 102531, 422166, B60R 2126

Patent

active

053989660

ABSTRACT:
A device is provided for increasing the surface area of the gas generant used in an automotive safety air bag module. Depending on crash conditions, the surface area of the gas generant is increased by shattering the gas generant wafers. One embodiment utilizes a squib having a high brisance zone which upon activation shatters the gas generant wafers. Alternatively, a dual function squib is used which can produce mechanical forces which force a breaking object to impact on the gas generating wafers thereby shattering them and increasing the surface area of the gas generant.

REFERENCES:
patent: 3713667 (1973-01-01), Blanchard
patent: 3718332 (1973-02-01), Jones
patent: 3741580 (1973-06-01), Vos
patent: 3972545 (1976-08-01), Kirchoff et al.
patent: 4358998 (1982-11-01), Schneiter et al.
patent: 4547342 (1985-10-01), Adams et al.
patent: 4878690 (1989-11-01), Cunningham
patent: 4890860 (1990-01-01), Schneiter
patent: 4998751 (1991-03-01), Paxton et al.
patent: 5346254 (1994-09-01), Esterberg

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