The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1990
Filed:
Mar. 21, 1988
Applicant:
Inventor:
John L Earle, Forest Grove, OR (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01K / ; B60Q / ; B60Q / ;
U.S. Cl.
CPC ...
315 82 ; 315 76 ; 315 77 ; 315 80 ; 315 83 ;
Abstract
Turning on either headlights or parking lights pulses a first control circuit and energizes a relay, closing normally open contacts in the light circuits. The closing of the contacts energizes a second control circuit which holds the relay on and supplies power to timers. Turning off an ignition switch starts a short headlight timer and a long parking light timer. The timers have outputs connected to disable the second control circuit and to thereby de-energize the relay. The output of the short timer is grounded through the headlights when the headlights are in a low resistance off condition.