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:
Apr. 21, 1992
Filed:
Sep. 13, 1990
Applicant:
Inventors:
Assignees:
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Niwa, JP;
Suzuki Motor Corporation, Shizuoka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340451 ; 340626 ;
Abstract
An oil-pressure warning apparatus for automobiles includes an oil-pressure switch which is turned on when the circulation pressure of engine oil drops below a predetermined level, an alarm circuit which provides an electrical path in response to the on-off operation of the oil-pressure switch, and a warning control circuit which energizes the alarm circuit when the oil-pressure switch is turned on and maintains the energization of the alarm circuit. Thus, even when the oil pressure switch fluctuates back and forth between its on and off positions, the warning lamp will not flash.