Vehicle speed control circuit tester

Details Vehicle speed control circuit tester Vehicle speed control circuit tester

1977-07-20

1980-09-02

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 73R, G01R 3102

Patent

active

042209129

ABSTRACT:
An apparatus for testing the current path integrity and operation of a wiring harness and associated components for a vehicle speed control. The testing instrument is powered from the vehicle power supply and utilizes LEDs to provide a visual indication as to the proper and/or improper operation of the tested circuit. Each LED is connected in series with a current limiting resistor and one or more of the LEDs are connected in series with a blocking diode to protect the LEDs from reverse polarity voltages. Diodes are also connected in parallel with one or more of the LEDs, their series resistors and the blocking diode to limit the forward bias voltages which can develop across the LEDs.

REFERENCES:
patent: 2717988 (1955-09-01), Myers
patent: 3417326 (1968-12-01), Harris
patent: 3428888 (1969-02-01), Nolte
patent: 3596269 (1971-07-01), Laska
patent: 3967257 (1976-06-01), Hager
patent: 3991367 (1976-11-01), Chapman et al.
patent: 4028621 (1977-06-01), Bloxam

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