Engine disabling

Details Engine disabling Engine disabling

1980-02-28

1981-09-22

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

180287, 307 10AT, 340 63, B60R 2504, B60R 2510

Patent

active

042912962

ABSTRACT:
A circuit for disabling a vehicle engine comprises a relay having a winding and four sets of contacts. One end of the relay winding is connected to a power terminal for connection to the vehicle ungrounded battery terminal potential. The other end of the winding is coupled to a first terminal for receiving an alarm output signal by a first diode and to ground potential through a holding set of contacts on the relay and a normally closed reset switch. A second terminal for connection to a horn relay is coupled to the first terminal by a second diode poled opposite to the first diode. A first common terminal and second output terminal are intercoupled by relay contacts for establishing a normally closed path therebetween. A third output terminal is intercoupled by the relay contacts for establishing a normally open path between the first and third terminals.

REFERENCES:
patent: 2892181 (1959-06-01), Benson et al.
patent: 3637037 (1972-01-01), Doland et al.
patent: 4159467 (1979-06-01), Ballin

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