Switchable automotive circuit test light

Details Switchable automotive circuit test light Switchable automotive circuit test light

1989-11-01

1991-03-12

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Nonquantitative

324556, G01R 1914

Patent

active

049995740

ABSTRACT:
A tool for automotive technicians to use to diagnose electrical problems on automobiles. That is easer to use, faster, and far more accurate. This tool comprises of a case to hold probe, circuit, LED's and a means to connect said tool to an automobile. Two lights, first light to tell the operator the tool is ready for use and that the electrical connections to the storage battery are complete to the second light. Second light illuminates when said probe is in contact with automobile system and continuity of said circuit exists. A switch on said tester to select current direction of said tester. Tester circuit which is lower thatn 20 milli amps. when in series or parallel with the automotive circuit being tested.

REFERENCES:
patent: 3962630 (1976-06-01), Chaffee
patent: 4028621 (1977-01-01), Bloxam
patent: 4162478 (1979-07-01), Huber et al.
patent: 4207517 (1980-06-01), Bloxam
patent: 4210862 (1980-07-01), Koslar
patent: 4366434 (1982-04-01), Ellis
patent: 4540940 (1985-09-01), Nolan
patent: 4599557 (1986-07-01), Cestaro
patent: 4825150 (1989-04-01), Sirasud

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