Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Nonquantitative
Patent
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
Eisenzopf Reinhard J.
Morneau Roland L.
Solis Jose M.
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