Land vehicles – Wheeled – Attachment
Patent
1971-11-03
1976-06-29
Wood, Jr., M. H.
Land vehicles
Wheeled
Attachment
180103A, B60R 2108
Patent
active
039662241
ABSTRACT:
A vehicle includes an inflatable occupant restraint cushion inflated from an inflater. The inflater is of the air-augmented type and includes a pressure vessel containing gas under pressure and a gas generator. The outlet of the vessel to the cushion is sealed by a diaphragm rupturable by electrically fired detonators. The gas generator is actuated by either an electrically fired pyrotechnic delay squib or by a nondelay pyrotechnic squib. A pair of low level acceleration responsive sensors connect the detonators and the delay squib across a source of power. When the vehicle is subjected to an impact generating a pulse above a predetermined minimum amplitude and time and below a predetermined maximum, the sensors fire the delay squib and the detonators. The gas is immediately released to initiate partial inflation of the cushion. After a predetermined time interval, the delay squib actuates the gas generator to complete inflation of the cushion. A high level acceleration responsive sensor, actuated by a pulse equal to or above the predetermined maximum, is in series with one of the low level sensors and the nondelay squib across the source of power. When an impact generates an acceleration pulse equal to or above the predetermined maximum, the low level sensors fire the detonators to release the gas to the cushion and one low level sensor and the high level sensor fire the nondelay squib to substantially simultaneously actuate the gas generator. The time interval is interrupted any time that a pulse equal to or exceeding the predetermined maximum is generated, such as during a multiple impact situation.
REFERENCES:
patent: 3495675 (1970-02-01), Hass et al.
patent: 3532358 (1970-10-01), Selwa et al.
patent: 3582107 (1971-06-01), Goetz et al.
patent: 3638964 (1972-02-01), Chute
patent: 3663035 (1972-05-01), Norton
patent: 3674059 (1972-07-01), Stephenson
patent: 3684309 (1972-08-01), Uchiyamada
patent: 3713667 (1973-01-01), Blanchard
patent: 3744815 (1973-07-01), Scherenberg
Campbell David D.
Klove, Jr. Edwin H.
Furman Herbert
General Motors Corporation
Silverstrim John P.
Wood, Jr. M. H.
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