No fault battery insertion device

Details No fault battery insertion device No fault battery insertion device

1975-06-27

1976-10-05

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Having polarity safety feature

429 96, H01M 210

Patent

active

039842576

ABSTRACT:
Battery operated device has battery wells into which batteries are inserted. Spring-loaded rings in the wells are configured so that electrical contact is not made when the batteries are inserted in the wrong polarity orientation but permit contact when the batteries are correctly inserted.

REFERENCES:
patent: 2982807 (1961-05-01), Dassow et al.
patent: 3608304 (1971-09-01), Schaad
patent: 3846971 (1974-11-01), Ho et al.
patent: 3856577 (1974-12-01), Oki et al.
patent: 3887393 (1975-06-01), La Rue
patent: 3945193 (1976-03-01), Yasuda et al.

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