Electric timepiece for displaying the operating condition thereo

Details Electric timepiece for displaying the operating condition thereo Electric timepiece for displaying the operating condition thereo

1974-11-25

1976-12-21

Weldon, Ulysses

58 23BA, G04C 300

Patent

active

039980430

ABSTRACT:
In a battery operated electric timepiece operated by a battery of the type including a time display, such as a second hand, when the voltage of the battery decreases below a predetermined value, the movement of the second hand is modified to give an alarm that the life of the battery has terminated.

REFERENCES:
patent: 3451210 (1969-06-01), Helterline, Jr. et al.
patent: 3553957 (1971-01-01), Dome et al.
patent: 3568430 (1971-03-01), Walton
patent: 3591957 (1971-07-01), Cobarg
patent: 3665703 (1972-05-01), Cobarg
patent: 3802182 (1974-04-01), Fujita
patent: 3807164 (1974-04-01), Zaisky et al.
patent: 3841087 (1974-10-01), Kikuchi
patent: 3898790 (1975-08-01), Takamune et al.

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