Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1976-08-25
1979-04-10
Granger, Theodore A.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210186, 210295, B01D 3502
Patent
active
041487290
ABSTRACT:
A system for storing and handling used cooking oils and the like comprises a dump station located adjacent to the kitchen facility in a restuarant for receiving and feeding the used cooking oils through a fill pipe into a remotely located, closed storage container. Heating tubes passing through the fill pipe and the storage container maintain the liquidity of the used cooking oil while moving through the fill pipe and while stored in the container. A pump and control unit is co-located with the storage container for monitoring the temperature of the used oil in the container, and for detecting when the container is filled with the oil so as to provide an indication in the restaurant so that a pump may be energized to thereafter evacuate the storage container.
REFERENCES:
patent: 1473358 (1923-11-01), Probst
patent: 1630714 (1927-05-01), Moir
patent: 2145614 (1939-01-01), Stambaugh
patent: 2644514 (1953-07-01), Potter
patent: 3626874 (1971-12-01), Grant
patent: 3648595 (1972-03-01), Morris
patent: 3655051 (1972-04-01), Quase
patent: 3701313 (1972-10-01), Boggs
patent: 3750560 (1973-08-01), Holmes
patent: 3766867 (1973-10-01), DeAngelis
patent: 3894482 (1975-07-01), Murphy
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