Timepiece combined with a thermometer

Details Timepiece combined with a thermometer Timepiece combined with a thermometer

1979-05-03

1980-11-25

Weldon, Ulysses

Horology: time measuring systems or devices

Combined with disparate device

Ambient condition detector

368185, 368200, 368202, G04B 3712

Patent

active

042362369

ABSTRACT:
An electronic timepiece displaying both the time and the temperature. A tsducer which may take two positions is provided to reach this result: the first position incorporates the transducer within the timepiece and allowing the correction of the frequency drift of the time base which determines the time the second position projecting the transducer out of the timepiece case in order to measure, for example, the temperature of the ambient air. There is also provided an automatic switching system which adapts the transducer to the frequency correction or to the temperature measurement depending on the position of said transducer.

REFERENCES:
patent: 3166742 (1965-01-01), Sherwin
patent: 3707071 (1972-12-01), Walton
patent: 3772874 (1973-11-01), Lefkowitz
patent: 3925777 (1975-12-01), Clark
patent: 3937004 (1976-02-01), Natori et al.
patent: 3999370 (1976-12-01), Morokawa et al.
patent: 4015208 (1977-03-01), Hammer et al.

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