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:
Mar. 20, 1990
Filed:
Jan. 11, 1988
Kaoru Hatanaka, Saitama, JP;
Tetsuo Yamagata, Tokyo, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A flasher device flashes a selected one of a plurality of groups of indicator lamps selected by a flasher starting switch. An intermittent voltage is supplied to the selected group of indicator lamps to cause the lamps to flash. A capacitor is operatively connected to the selected group of indicator lamps and the rate of change of the voltage across the capacitor is indicative of the resistance of the selected group of indicator lamps. The frequency of the intermittent voltage supplied to the indicator lamps to flash the lamps is varied in response to the rate of change of the voltage across the capacitor. As the rate of change of voltage across the capacitor varies in relationship to the resistance of the selected group of indicator lamps, the change in the frequency of the intermittent voltage supplied the indicator lamps and thus the flash rate of the indicator lamps is representative of the resistance of the group of lamps. Thus the flash rate indicates to the operator of the vehicle when a filament has been broken. An audible announcement of the automatic reset of the flasher may also be developed.