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. 12, 1985
Filed:
Sep. 29, 1982
Applicant:
Inventor:
Katsumi Hosoya, Yokohama, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M / ; G08B / ;
U.S. Cl.
CPC ...
340 60 ;
Abstract
An alarm system applied to engine oil pressure dependent on engine speed includes first and second sensors. The first sensor detects the engine oil pressure and generates a signal indicative thereof. The second sensor detects the engine speed and generates a signal indicative thereof. A reference signal is produced in response to the engine speed signal for defining an oil pressure reference level dependent on the engine speed. A comparator, responsive to the oil pressure signal and the reference signal, compares the engine oil pressure to the reference level and generates an alarm signal when the engine oil pressure is lower than the reference level.