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:
Dec. 20, 1988
Filed:
Jun. 30, 1987
Applicant:
Inventors:
Divna Cipris, Millburn, NJ (US);
Thirumalai G Palanisamy, Morristown, NJ (US);
Arthur T Walsh, Morris Plains, NJ (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340603 ; 340 59 ;
Abstract
The invention relates to a sensor system for in-situ monitoring of lubricant oil quality. The sensor system consists of a sensing element located in-situ in contact with lubricant oil. The sensor is corrodable and upon deterioration of the oil the sensor corrodes and eventually the circuit will break. Current flow through the circuit is monitored by conventional power supply and measuring devices and upon breaking of the sensor, an indication is provided to the driver of a motor vehicle indicating that oil is to be changed.