Audio tachometer system

Details Audio tachometer system Audio tachometer system

1974-09-20

1976-03-30

Waring, Alvin H.

Communications: electrical

Selective

Having indication or alarm

340263, 340266, B60Q 500

Patent

active

039478149

ABSTRACT:
An audio-tachometer system including an electronic tachometer having a first pointer for indicating engine speed, and a second pointer that is manually settable to a desired engine speed for shifting gears, wherein the engine speed corresponds to the speed at which the second pointer is set, an electrically conductive edge of the first pointer will bridgeably interconnect a pair of contacts mounted upon the second pointer to close an electrical circuit and thereby supply power to energize a signal means, e.g., audio tone generator.

REFERENCES:
patent: 2484038 (1949-10-01), Kirlin
patent: 2728072 (1955-12-01), Magid
patent: 2785393 (1957-03-01), Mininberg
patent: 2963694 (1960-12-01), Baron

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