Alarm circuit

Details Alarm circuit Alarm circuit

1976-05-07

1978-11-14

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

307 10R, 315 80, 340 52F, B60Q 1100, G08B 2300

Patent

active

041258240

ABSTRACT:
An alarm circuit for vehicle headlights including a switching circuit which provides a warning when the headlights should be activated in accordance with ambient conditions, such as low light levels, as well as warning of when the headlights should be de-activated, as when the vehicle ignition system is switched off.

REFERENCES:
patent: 3662334 (1972-05-01), Susslin
patent: 3899770 (1975-08-01), Slotkowski
patent: 4029991 (1977-06-01), Schultz

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