Polarity indicator for vehicle battery
First Claim
1. A polarity indicator for checking the matching of polarities of a vehicle battery with a d.c. power supply, said indicator adapted to be mounted on a vehicle battery provided with a positive and a negative terminal, said indicator comprising a non-conductive elongated strip adapted to be aligned end to end between said positive and negative terminals, a positive and a negative electrically conductive pole spacedly mounted on said strip, said positive and negative poles adapted to be respectfully located adjacent the positive and negative terminals, a directional light emitting means connected between said poles, said light emitting means adapted to emit light upon the passage of an electric direct current between said poles coming from said d.c. power supply, a resistor element electrically mounted between one of said poles and said light emitting means, said strip, said poles, said light emitting means and said resistor element being mounted on a support member adapted to be fixed on the top surface of the vehicle battery between said positive and negative terminals, whereby the light emitted by the light emitting means identifies the matching of the polarity of the d.c. power supply with the polarity of the terminals of battery adjacent the poles of the indicator.
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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.
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Citations
11 Claims
- 1. A polarity indicator for checking the matching of polarities of a vehicle battery with a d.c. power supply, said indicator adapted to be mounted on a vehicle battery provided with a positive and a negative terminal, said indicator comprising a non-conductive elongated strip adapted to be aligned end to end between said positive and negative terminals, a positive and a negative electrically conductive pole spacedly mounted on said strip, said positive and negative poles adapted to be respectfully located adjacent the positive and negative terminals, a directional light emitting means connected between said poles, said light emitting means adapted to emit light upon the passage of an electric direct current between said poles coming from said d.c. power supply, a resistor element electrically mounted between one of said poles and said light emitting means, said strip, said poles, said light emitting means and said resistor element being mounted on a support member adapted to be fixed on the top surface of the vehicle battery between said positive and negative terminals, whereby the light emitted by the light emitting means identifies the matching of the polarity of the d.c. power supply with the polarity of the terminals of battery adjacent the poles of the indicator.
- 10. A vehicle battery having spaced apart, a positive and a negative terminal projecting from the surface of the battery, and a polarity indicator for checking the matching of polarities of the vehicle battery with a d.c. power supply, said indicator comprising a positive and a negative electrically conducting pole respectively positioned adjacent said positive and negative terminals, a light emitting diode (LED) electrically connected between said poles by a pair of connectors, said diode adapted to emit light upon the passage of an electric direct current between said poles coming from said d.c. power supply, a resistor element mounted in one of said connectors, the connectors, the resistor element, the poles and the LED are at least partly inlaid in the surface of the battery, whereby the light emitted by the light emitting means identifies the matching of the polarity of the d.c. power supply with the polarity of the terminals of battery adjacent the poles of the indicator.
Specification