04301390 is referenced by 14 patents and cites 8 patents.

An automatic headlight switch for automatically turning off headlights of a vehicle a predetermined period after the ignition switch is turned off consisting of a timer coupled to the ignition switch which is started by a transient pulse from the ignition switch being turned off which after the predetermined period is coupled to a relay solenoid for deactuation thereof opening relay contacts in series between the battery and the headlight switch. Upon turning on the headlight switch, a pulse generator coupled thereto which is triggered via a transient from the headlight switch actuates the relay solenoid and thereby applies power to the headlights through the relay contacts and the headlight switch.

Title
Automatic headlight switch
Application Number
573970
Publication Number
4301390
Application Date
October 5, 1978
Publication Date
November 17, 1981
Inventor
John L Earle
2905 Crane St., Lemon Grove, 92045
CA, US
IPC
B60Q 1/02
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