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:
Jul. 20, 1993
Filed:
Sep. 23, 1991
Masayuki Koide, Shizuoka, JP;
Takafumi Ichikawa, Aichi, JP;
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Suzuki Motor Corporation, Shizuoka, JP;
Abstract
An oil pressure alarm device for a motor vehicle comprises, an oil pressure switch, the oil pressure switch being activated to a conductive state when the circulation oil pressure of engine oil decreases below a predetermined level, alarm device for forming first current path in response to a conductive and non-conductive operation of the oil pressure switch after main power switch is turned on, condition detecting device for producing a detection signal in response to rotation of the engine, delay device for producing an enabling signal after a predetermined time of period has elapsed from when the detection signal is supplied from the condition detecting device, and alarm control device for forming second current path for the alarm device when the oil pressure switch is turned on under the condition that the enabling signal is outputted by the delay device, and for maintaining the second current path while the enabling signal is supplied from the delay device to the warning control circuit.