Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Reexamination Certificate
2005-11-22
2005-11-22
Lawrence, Frank M. (Department: 1724)
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
C210S085000, C210S143000, C210S416500, C073S053070, C073S865500, C368S070000, C123S1960CP
Reexamination Certificate
active
06966994
ABSTRACT:
A method is provided of detecting contamination of engine fluid in an engine. Engine fluid is provided to a particle counter, and the cleanliness of the engine fluid is measured with the particle counter during operation of the engine.
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Berns Daniel D.
Rose Carmen L.
Caterpillar Inc
Finnegan Henderson Farabow Garrett & Dunner
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