Communications: electrical – Selective – Having indication or alarm
Patent
1980-07-18
1981-11-17
Waring, Alvin H.
Communications: electrical
Selective
Having indication or alarm
307 10AT, B60R 2504, B60R 2510
Patent
active
043014410
ABSTRACT:
An alarm and antitheft system for an automotive vehicle having a master relay, which defines a running condition and an alarm condition which is assumed when the ignition switch of the vehicle is in the off position, and a cut-out relay, the master relay including an element selectively lockable to maintain the relay in one or the other of these conditions or unlockable for manual actuation of the master relay into the running condition and including contacts which, in the alarm condition, electrically bypass the horn switch of the vehicle to warn of attempted unauthorized operation, open the ignition circuit of the vehicle, and connect the lighting circuit of the vehicle to a device to signal that the lights are on, and the cut-out relay being energized from the horn in the alarm condition to open the starting circuit of the vehicle.
REFERENCES:
patent: 3525414 (1970-08-01), Copelan
patent: 3569931 (1968-09-01), Baxter
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