Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1988-04-29
1989-08-29
Crosland, Donnie L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340457, B60Q 100
Patent
active
048621404
ABSTRACT:
The installable headlight alarm system is a device that detects when the headlights of an automobile are on when the engine is not operating, using only the electrical signals present at the automobile's headlight connector. This method of detection allows the system to be easily installed on any automobile, by attaching it to the connectors of the automobile's headlights.
REFERENCES:
patent: 3905013 (1975-09-01), Lee
patent: 4125824 (1978-11-01), McPherson et al.
patent: 4194175 (1980-03-01), Eklund
patent: 4220947 (1980-09-01), Yamamoto
Case Michael B.
Farach Orlando F.
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