Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1987-06-30
1988-12-20
Levy, Stewart J.
Communications: electrical
Condition responsive indicating system
Specific condition
340 59, G08B 2100
Patent
active
047927917
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.
REFERENCES:
patent: 4675662 (1987-06-01), Kondo et al.
Cipris Divna
Palanisamy Thirumalai G.
Walsh Arthur T.
Allied-Signal Inc.
Cortina Anibal Jose
Fuchs Gerhard H,.
Levy Stewart J.
Roskos Joseph W.
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