Seismic sensor apparatus

Details Seismic sensor apparatus Seismic sensor apparatus

1981-02-27

1982-11-30

Grimley, A. T.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200 6193, 340566, H01H 3514

Patent

active

043617409

ABSTRACT:
A seismic sensor is disclosed which essentially consists of a central annular member having an inner conductive periphery. The annular member is coaxially positioned around a center post located in a housing. The center post has four extending surface slots into which are inserted tines or upstanding flanges associated with first and second contact members. The contact members enable the sensor to be mounted in four distinct positions, thus giving the installer great flexibility.

REFERENCES:
patent: 3521266 (1970-01-01), Hall
patent: 3559203 (1971-01-01), Hall et al.
patent: 3560680 (1971-02-01), Clarke
patent: 3571539 (1971-03-01), Kaiser et al.
patent: 3671690 (1972-06-01), Parlato

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