Inertia sensor switch

Details Inertia sensor switch Inertia sensor switch

1979-06-11

1981-02-03

Scott, James R.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

260 6148, 200 6149, 200 6151, H01H 3514

Patent

active

042490464

ABSTRACT:
A cantilever type velocity sensor which includes a unitary elongated frame member mounted on spaced walls of a base of dielectric material. A planar spring member has one end portion thereof mounted to an integral adjustable portion of the frame and the other free end thereof mounting a mass engageable with another integral adjustable portion of the frame. The first portion is adjustable to set the preload force and the second portion is adjustable to set the travel distance between the mass and the contact means of the sensor. A third integral adjustable portion of the frame limits vibrational movement of the spring member relative to the frame. A resilient stop means is engageable by the mass upon actuation of the sensor to obviate contact bounce and ensure adequate closure time. Both the contact means, in the form of a columnar coil spring, and an integral terminal portion of the frame, are monitored by a resistor connected thereacross.

REFERENCES:
patent: 2741675 (1956-04-01), Chase et al.
patent: 3389236 (1968-06-01), Guthart
patent: 3556556 (1971-01-01), Goetz
patent: 3774938 (1973-11-01), Orlando
patent: 3794786 (1974-02-01), Doyle

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