Engine speed responsive anti-theft device for vehicle

Details Engine speed responsive anti-theft device for vehicle Engine speed responsive anti-theft device for vehicle

1975-08-28

1977-01-18

Waring, Alvin H.

Communications: electrical

Selective

Having indication or alarm

340 53, 340 62, 340263, 307 10AT, 180114, G08B 1322

Patent

active

040042731

ABSTRACT:
An anti-theft device for an automotive vehicle in which an electronic engine speed responsive means is effective, when said anti-theft device has been prepared for operation by closure of a concealed switch, to disable the engine after the engine reaches a predetermined speed and to maintain the engine disabled until the concealed switch is reopened. The device may also energize the horn relay so that the horn sounds while the engine is disabled. The electronic speed responsive device can be connected across the points and the circuit components all can operate at vehicle battery voltages so that the anti-theft device can be quickly installed in a vehicle. The engine disabling means can be maintained in operation either through the use of an electronic trigger switch or by the use of a relay which establishes its own holding circuit.

REFERENCES:
patent: 3203501 (1965-08-01), Carter et al.
patent: 3748641 (1973-07-01), Hartung
patent: 3761729 (1973-09-01), Engel

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