Air bag inflator with movable container

Details Air bag inflator with movable container Air bag inflator with movable container

1996-02-16

1996-11-05

Culbreth, Eric D.

Land vehicles

Wheeled

Attachment

280741, B60R 2126

Patent

active

055709044

ABSTRACT:
An apparatus (10) for inflating an air bag (12) comprises a first container (15) defining a first chamber (18) filled with inflation fluid. A second container (64) is movable within the first chamber and defines a second chamber (69). The second chamber contains ignitable material (80). An igniter (90) ignites the ignitable material (80) in the second chamber in response to an actuating signal and thereby develops a thrust to propel the second container (64) within the first chamber (18) in a predetermined direction. By igniting the ignitable material (80), the igniter (90) also produces combustion products including heat for heating and pressurizing the inflation fluid in the first chamber (18) to increase the temperature and pressure of the inflation fluid. The inflation fluid is directed from the first chamber (18) into the air bag (12) to inflate the air bag. The second container (64) includes tabs (99) which move from a retracted condition to an extended condition when the second container (64) is propelled within the first chamber (18) in the predetermined direction. When extended, the tabs (99) frictionally engage the first container (15) to resist movement of the second container (64) in a direction opposite the predetermined direction.

REFERENCES:
patent: 3951428 (1976-04-01), Sugiura et al.
patent: 4981534 (1991-01-01), Scheffe
patent: 5062367 (1991-11-01), Hayashi et al.
patent: 5100174 (1992-03-01), Jasken et al.
patent: 5131680 (1992-07-01), Coultas et al.
patent: 5160163 (1992-11-01), Castagner et al.
patent: 5344186 (1994-09-01), Bergerson et al.
patent: 5350192 (1994-09-01), Blumenthal
patent: 5356176 (1994-10-01), Wells
patent: 5364127 (1994-11-01), Cuevas
patent: 5388859 (1995-02-01), Fischer et al.

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