Method apparatus for indicating improper coupling of a power sou

Details Method apparatus for indicating improper coupling of a power sou Method apparatus for indicating improper coupling of a power sou

1996-06-06

1998-02-10

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Having polarity safety feature

429 50, 429 90, 455349, 455899, H01M 1048

Patent

active

057167257

ABSTRACT:
An electronic device (100) coupled to a power source (130) having a positive terminal and a negative terminal includes a positive connector (150) for coupling to the positive terminal of the power source (130) and a negative connector (160) for coupling to the negative terminal of the power source (130). An alert circuit (135) coupled to the positive and negative connectors (150, 160) indicates when the power source (130) has been coupled to the electronic device (100) improperly.

REFERENCES:
patent: 3936121 (1976-02-01), Leinberger
patent: 4272142 (1981-06-01), Zapf
patent: 4969834 (1990-11-01), Johnson
patent: 4992340 (1991-02-01), Tidwell et al.
patent: 5229220 (1993-07-01), Stanton et al.

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