Battery-driven clock with indicator of the end of life of the ba

Details Battery-driven clock with indicator of the end of life of the ba Battery-driven clock with indicator of the end of life of the ba

1979-03-12

1982-02-09

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With power monitor

368 80, G04B 900, G04B 1904

Patent

active

043153283

ABSTRACT:
A battery-driven clock with a timing stage which emits a control signal of a certain frequency to an electromechanical or electronic indicator stage, and a warning stage establishing the end of the service life of the battery. In the warning situation the warning stage influences the frequency of the control signal in the sense of advancing the clock.

REFERENCES:
patent: 3898790 (1972-08-01), Takamane et al.
patent: 3991553 (1976-11-01), Bergey et al.
patent: 3998043 (1976-12-01), Tamaru et al.
patent: 4014164 (1977-03-01), Fujita
patent: 4090355 (1978-05-01), Morohoshi

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