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.

Date of Patent:
Oct. 15, 1991

Filed:

Jul. 24, 1989
Applicant:
Inventors:

Lance C Onan, Wauwatosa, WI (US);

James Scholler, Brookfield, WI (US);

Douglas E Stehr, Hales Corners, WI (US);

Hugh R Putnam, Milwaukee, WI (US);

Assignee:

Harley-Davidson, Inc., Milwaukee, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60Q / ;
U.S. Cl.
CPC ...
340458 ; 307 108 ; 315 82 ; 315130 ; 340641 ; 340642 ;
Abstract

A protection system has a power supply connected to lamps by a low value resistor. The resistor is part of a voltage divider system which provides input signals to a number of comparators. These comparators provide appropriate signals to a microprocessor to indicate normal operation. When a malfunction is detected, the voltage drop across the low value resistor changes and alters the output of the comparators. The microprocessor thereafter produces an appropriate warning signal. In a vehicle turn signal circuit, the present invention is incorporated to detect a burned out bulb. A warning is provided to the vehicle operator when a bulb is out. Further, pursuant to federal safety regulations, the remaining functioning bulbs, when activated, flash at a substantially slower rate.


Find Patent Forward Citations

Onan, Lance. (1991). Electrical malfunction detection system (U.S. Patent No. 5057814). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5057814

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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