Improperly inserted battery detector

Details Improperly inserted battery detector Improperly inserted battery detector

1990-03-09

1992-04-07

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specified housing

116315, G08B 2300

Patent

active

051032163

ABSTRACT:
A deflectable battery retaining member in a battery powered unit blocks the improper insertion of a battery into the unit. Further, the same member in the absence of a battery inhibits engagement of the cover of the unit thereto providing a visual indicator of the missing battery.

REFERENCES:
patent: 3823367 (1974-07-01), Kaye et al.
patent: 3887393 (1975-06-01), LaRue, Jr.
patent: 4228428 (1980-10-01), Niedermeyer
patent: 4471346 (1984-09-01), Nelson et al.
patent: 4525703 (1985-06-01), Bellino
patent: 4870395 (1989-09-01), Belano
patent: 4881063 (1989-11-01), Fawcett
patent: 4959640 (1990-09-01), Hall

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