Mercury type tilt switch

Details Mercury type tilt switch Mercury type tilt switch

1976-03-30

1978-07-04

Tudor, Harold

Electricity: circuit makers and breakers

Liquid contact

Tiltable or rotatable

200 6147, H01H 2920

Patent

active

040990400

ABSTRACT:
A tilt switch of the mercury type wherein at least one electrode extends into the switch chamber containing a mercury-like globule which is movable back and forth between a first position resulting in the switch being in a state of conductivity or non-conductivity when it is oriented within a first solid angle and the opposite state when it is oriented outside that solid angle. The chamber is of at least generally dry wall construction and may be of small size for use in activating a LED or LCD display of a battery-powered wristwatch.

REFERENCES:
patent: 1107245 (1914-08-01), Bard
patent: 1940028 (1933-12-01), Staley
patent: 3011040 (1961-11-01), Remer et al.
patent: 3351726 (1967-11-01), Cook
patent: 3599745 (1971-08-01), Hughes
patent: 3646490 (1972-02-01), Bitko
patent: 3855784 (1974-12-01), Foellner

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