Sensing system for actuating a safety device

Details Sensing system for actuating a safety device Sensing system for actuating a safety device

1975-11-13

1977-04-26

Waring, Alvin H.

Communications: electrical

Selective

Having indication or alarm

340262, 307121, 180 91, B60R 2100, H01H 3514

Patent

active

040204537

ABSTRACT:
An acceleration sensing and safety-device actuating system, for actuating a safety device, such as a crash-sensitive automobile air bag detonator. A differential amplifier forms part of an operational integrator responsive to an acceleration sensor and a reference potential. A threshold device, responsive to proper operation of the reference potential, triggers an output stage to set off the safety device when the differential amplifier output indicates a given deceleration. An isolating circuit isolates the output stage for a given time after starting the automobile. A control switch shorts the operating voltage in response to low operating potential or an inoperative safety circuit, and turns on a warning indicator.

REFERENCES:
patent: 3633159 (1972-01-01), Dillman
patent: 3870894 (1975-03-01), Brede et al.

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