Distorted-pool mercury switch

Details Distorted-pool mercury switch Distorted-pool mercury switch

1985-05-15

1986-12-09

Pellinen, A. D.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200220, H01H 3502

Patent

active

046281614

ABSTRACT:
A tilt switch using a conductive liquid such as mercury to bridge a gap inside the sealed switch. In operation, the pool of mercury is held in a local depression and does not flow but rather distorts in shape enough to reach a ring-shaped second terminal which is spaced from and surrounds the mercury pool.

REFERENCES:
patent: 2713159 (1955-07-01), Morrison
patent: 3034097 (1962-03-01), English et al.
patent: 3367439 (1968-02-01), Zweben
patent: 3599745 (1971-08-01), Hughes
patent: 3869588 (1975-03-01), Ubukata et al.
patent: 4135067 (1979-01-01), Bitko
patent: 4493066 (1985-01-01), Ubukata et al.

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