Inflator for side impact air bag

Details Inflator for side impact air bag Inflator for side impact air bag

1995-04-24

1996-07-16

Rice, Kenneth R.

Land vehicles

Wheeled

Attachment

280741, B60R 2126

Patent

active

055360408

ABSTRACT:
An air bag inflator (20, 220, 420) comprises first and second coaxial tubes (22, 24, 222, 224, 422, 424) which define respective first and second chambers (62, 64, 262, 264, 462, 464). The tubes (22, 24, 222, 224, 422, 424) have terminal ends (42, 44, 242, 244). A weld securement (46, 246, 446) fixes the terminal ends (42, 44, 242, 244) of the tubes (22, 24, 222, 224, 422, 424) together so the chambers (62, 64, 262, 264, 462, 464) extend in opposite directions from the securement (46, 246, 446). The first chamber (62, 262, 462) contains inflation fluid under pressure. The second tube (64, 264, 464) has passages (82, 282, 482) for directing inflation fluid from the first chamber (62, 262, 462) into an air bag. A rupturable wall (66, 266, 466) blocks fluid communication between the first and second chambers (62, 64, 262, 264, 462, 464). A canister (102, 302, 502) in the second chamber (64, 264, 464) has a section which moves to rupture the wall (66, 266, 466) to enable the inflation fluid to flow from the first chamber (62, 262, 462) into the second chamber (64, 264, 464). An energizable initiator (142, 342, 542) is located in the second chamber (64, 264, 464) to, when energized, move the movable section of the canister to rupture the wall (66, 266, 466).

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patent: 5340148 (1994-08-01), Faigle et al.
patent: 5344186 (1994-09-01), Bergerson et al.
patent: 5350192 (1994-09-01), Blumenthal
patent: 5388859 (1995-02-01), Fischer et al.

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