Mercury switch arrangement for digital watch

Details Mercury switch arrangement for digital watch Mercury switch arrangement for digital watch

1977-03-08

1978-12-19

Jackmo, Edith S.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

58 4A, 58 58, 200 6147, G04C 300, G04B 1924

Patent

active

041299825

ABSTRACT:
An automatically operating switch for activating the display of an LED digital wrist watch. The orientation of the wearer's wrist determines each of the various functions of the watch that are visually displayed. A curved tube of a non-wetting type is provided for housing a mercury bead. The position of the tube can be manually adjusted within the watch case in order to alter the response characteristics of the switch.

REFERENCES:
patent: 3232119 (1966-02-01), Salerno
patent: 3871170 (1975-03-01), Bergey
patent: 3921385 (1975-11-01), Harding et al.
patent: 3974638 (1976-08-01), Haber
patent: 4051662 (1977-10-01), O'Connor et al.

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