Instrument intended to be carried at the wrist

Details Instrument intended to be carried at the wrist Instrument intended to be carried at the wrist

1977-05-18

1979-08-21

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

58 23BA, 58 23C, 307 72, H02J 700

Patent

active

041654773

ABSTRACT:
A wrist carried instrument includes a rechargeable electric energy source for providing power to the instrument. The energy source is recharged by a pair of generators, both operatively coupled to the source and generating complementary recharging currents from different physical phenomena. The first generator may be a photo-electric cell generating a recharging current in light such as exists from the sun in summer, while the second generator may be a thermoelectric element generating a recharging current from a temperature gradient such as exists in the dark or winter.

REFERENCES:
patent: 3444946 (1969-05-01), Waterbury
patent: 3613351 (1971-10-01), Walton
patent: 3871383 (1975-03-01), Lee

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