Variable output inflator

Details Variable output inflator Variable output inflator

1999-08-06

2000-11-21

Carone, Michael J.

Land vehicles

Wheeled

Attachment

280740, 280742, 149 35, 149 45, 149 46, 149 47, 149 61, 149 62, B60R 2128, C06B 3500, C06B 3100, C06B 3128, C06B 3132

Patent

active

061491934

ABSTRACT:
This invention relates to a multi-stage gas bag inflator, operable initially, when activated, to cause the gas bag to deploy slowly and then, after a delay, to deploy rapidly, includes a housing having at least first and second chambers of preferably different size, separated by a bulkhead. One chamber is preferably smaller since it can be used to produce a smaller amount of gas to cause the initial slow deployment of the gas bag. A gas generant charge is ignited in the first chamber, and after some delay, a gas generant charge in the second chamber is ignited. The multi-stage inflator according to this invention can be used to provide the varying inflation rates needed to adjust the inflation of air bags to accommodate the severity of the collision and the position of the occupants. The inventive inflator is small in size and economical to produce.

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