Multi-chamber air bag with displacement responsive valve

Details Multi-chamber air bag with displacement responsive valve Multi-chamber air bag with displacement responsive valve

1993-02-16

1994-02-01

Focarino, Margaret A.

Land vehicles

Wheeled

Attachment

280728R, 280740, 280742, B60R 2124

Patent

active

052826465

ABSTRACT:
An occupant restraint air bag assembly includes an air bag having a base wall portion communicating with an inflator and an occupant contacting face wall for contact with the occupant upon inflation of the bag. The air bag also has an internal dividing wall which divides the air bag into a first chamber communicating directly with the inflator and a second chamber defined between the dividing wall and the occupant contacting face wall. A first opening in the dividing wall between the chambers communicate inflation gas from the first chamber to the second chamber to inflate the second chamber. A second opening in the dividing wall is normally closed by a vent flap which is operably connected to the occupant contacting face wall so that the inflation of the second chamber and resultant travel of the face wall toward the occupant and away from the dividing wall will move the valve flap to an open position by which the inflation gas is communicated into the second chamber through both the first opening and the second opening during the further inflation of the bag.

REFERENCES:
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patent: 3642303 (1972-02-01), Irish et al.
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patent: 3768830 (1973-10-01), Hass
patent: 4111458 (1978-09-01), Okada et al.
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patent: 4360223 (1982-11-01), Kirchoff
patent: 4500114 (1985-02-01), Grey, Jr.
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patent: 5016913 (1991-05-01), Nakajima et al.
patent: 5044663 (1991-09-01), Seizert
patent: 5160164 (1992-11-01), Fischer et al.
patent: 5172933 (1992-12-01), Strasser

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