Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Reexamination Certificate
2006-03-21
2006-03-21
Hopkins, Robert A. (Department: 1724)
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
C210S744000, C210S776000, C210S799000, C210S800000, C210S804000, C210S808000, C210S086000, C210S109000, C210S138000, C210S143000, C210S523000, C210S538000
Reexamination Certificate
active
07014779
ABSTRACT:
A vacuum separation, transport and collection system for immiscible liquids includes a separator (12) for separating two immiscible liquids such as oil and a water-based coolant, and for directing the separated immiscible liquid into a holder (16). A collector (18) is secured through a vacuum line (20) with the holder (16) and a vacuum generator (22) applies a vacuum to the collector (18) and holder (16). A controller (28) controls the vacuum generator (22) to apply a vacuum to the collector (18) and the holder (16) for a predetermined vacuum duty cycle for periodically removing separated immiscible liquid (26) from the holder (16) into the collector (18). Contaminants in the immiscible liquid cannot degrade performance of the system because such contaminants do not contact the vacuum generator (22) or controller (28).
REFERENCES:
patent: 3769207 (1973-10-01), Baer
patent: 4274957 (1981-06-01), Koller
patent: 5026488 (1991-06-01), Mesheau
patent: 5405538 (1995-04-01), Batten
patent: 6562503 (2003-05-01), Grasso et al.
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