Sensing apparatus with mechanical actuation system

Details Sensing apparatus with mechanical actuation system Sensing apparatus with mechanical actuation system

1978-01-11

1979-10-30

Silverstrim, John P.

Land vehicles

Wheeled

Attachment

180282, 138 30, 200 6153, B60R 2108

Patent

active

041726030

ABSTRACT:
A sensing apparatus functions when the pressure in a sensing chamber attains a predetermined pressure level in response to a crash environment to actuate a pressure release valve and thereby provide an output resulting in the deployment of an air bag within the confines of a vehicle for restraining forward movement of an occupant. The particular level of pressure developed in the sensing chamber relates to the velocity of flow of a fluid under the control of a sensing means movable in the sensing chamber and whose movement, in turn, is responsive to the relative velocity of a vehicle and an impacted object. The operation of the impact sensing apparatus is the resultant of a true measure of the relative velocity of the vehicle and the impacted object; and upon attainment of a velocity of flow equal to or greater than a threshold velocity the pressure release valve will be actuated.

REFERENCES:
patent: 2931665 (1960-04-01), Sandor
patent: 3072760 (1963-01-01), Hazen
patent: 3319420 (1967-05-01), Mercier
patent: 3336045 (1967-08-01), Kobori
patent: 3414292 (1968-12-01), Oldberg
patent: 3547467 (1970-12-01), Pociask
patent: 3549169 (1970-12-01), Oldberg
patent: 3654412 (1972-04-01), Haruna
patent: 3789949 (1974-02-01), Bortfeld
patent: 3793498 (1974-02-01), Matsui
patent: 3883156 (1975-05-01), Frazier

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