Igniter for an air bag inflator

Details Igniter for an air bag inflator Igniter for an air bag inflator

1993-05-04

1995-04-04

Tyson, Karin L.

Land vehicles

Wheeled

Attachment

422166, 1022025, B60R 2126

Patent

active

054030366

ABSTRACT:
The present invention resides in an improved inflator for inflating a vehicle occupant restraint (12) such as an air bag. The inflator has an igniter (40). The igniter (40) comprises a container (130) which contains an ignitable particulate output charge (152). The particulate output charge (152) is retained within the container and occupies only a portion of the container. The container (130) thus has a free volume (154) equal to about 25% to about 75% of the volume of the container. The output charge (152) has a burn time in the range of 5-100 milliseconds. The container has at least one orifice means (136) closed by a rupturable disk (138). The orifice means (136) has an orifice area which is sized to contain the output charge (152) within the container (130) until at least a substantial portion of the output charge ignites. This provides a low brisance ignition.

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patent: 5035179 (1991-07-01), Bender et al.
patent: 5062367 (1991-11-01), Hayashi et al.

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