Formed contact spring for electro-mechanical watches

Details Formed contact spring for electro-mechanical watches Formed contact spring for electro-mechanical watches

1975-06-19

1976-09-07

Hix, L. T.

58 28D, G04C 304

Patent

active

039786528

ABSTRACT:
A contact spring for making repetitive electrical contact with a contact pin on an oscillating balance wheel in a electro-mechanical watch. The contact spring is flat for maximum flexibility and has an end crimped to provide opposite identical rigid contact surfaces designed to control wear and provide self-cleaning action with optimum electrical contact.

REFERENCES:
patent: 750492 (1904-01-01), Schmidt
patent: 3529415 (1970-09-01), Wuthrich
patent: 3698179 (1972-10-01), Kaulins
patent: 3699762 (1972-10-01), Zatsky

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