Polarity indicator for vehicle battery

Details Polarity indicator for vehicle battery Polarity indicator for vehicle battery

1989-02-21

1990-05-08

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Nonquantitative

324426, 320 25, 429 92, G01R 1914

Patent

active

049241761

ABSTRACT:
A polarity indicator adapted to be mounted on a vehicle battery. A light emitting diode mounted on an elongated non-conductive strip and electrically connected to two poles having conductive surfaces at each end of the strip. The poles are intended to be oriented to correspond to the polarity of the battery terminals. When the battery is depleted and needs to be boosted, the booster cables are first connected to the poles which can identify the direction of the flow of current coming from the booster cables, the later being subsequently switch to the proper terminals of the battery.

REFERENCES:
patent: 964994 (1910-07-01), Marko
patent: 964995 (1910-07-01), Marko
patent: 1010377 (1911-11-01), Kempf

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