Air bag inflator

Details Air bag inflator Air bag inflator

1994-12-06

1996-07-16

Johnson, Brian L.

Land vehicles

Wheeled

Attachment

280740, 222 5, B60R 2126

Patent

active

055360394

ABSTRACT:
An inflator (10) includes a piston (136) which is welded in a housing (40). The piston (136) has a single circular stress riser (192). A diffuser portion (190) of the piston (136) has an outer surface (214) disposed in a plane of an end wall (54) of the housing (40). Upon actuation of the inflator (10), ignitable material (220) ignites in a combustion chamber (156) in the piston (136). The pressure increases in the combustion chamber until the stress riser (192) on the piston (136) ruptures. The diffuser portion (190) of the piston (136) separates from a mounting portion (180) and moves to a position out of the plane of the end wall (54).

REFERENCES:
patent: 3797853 (1974-03-01), Grosch et al.
patent: 3960390 (1976-06-01), Goetz
patent: 5114179 (1992-05-01), Emery et al.
patent: 5184846 (1993-02-01), Goetz
patent: 5226668 (1993-07-01), Delonge-Immik et al.
patent: 5301978 (1994-04-01), Munzel et al.
patent: 5378018 (1995-01-01), Ketterer et al.

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