Collant filter and oil coalescer

Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means

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Details

210171, 210262, 210300, 210540, 210521, 210DIG5, C02F 140

Patent

active

054549370

ABSTRACT:
Apparatus for processing machine tool coolants wherein the used coolant fluid includes emulsified oils of light density or the like to be separated from a heavier density metal working fluid such as oil or water. The apparatus also removes particles, bacteria and odor from the processed fluid. Contaminated used coolant is prefiltered of particles prior to passing through a coalescer separation reservoir consisting of a plurality of adjacent configured plates permitting the low density emulsified oils to rise to the surface of the liquid within the separation reservoir. The emulsified oils pass over a weir and are drained away, and the skimmed coolant fluid passes from the separation reservoir to an accumulation reservoir whose level is sensed by a float controlling a pump which removes the coolant fluid from the accumulation reservoir and passes the fluid through a fine activated charcoal filter to complete the processing. A fine adjustment of the level of liquid within the separation reservoir permits an accurate removal of light oils and contaminants with a minimum loss of reusable coolant fluid.

REFERENCES:
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patent: 3966136 (1976-12-01), Jakubek et al.
patent: 4361488 (1982-11-01), White et al.
patent: 4513614 (1985-04-01), Adcock
patent: 4772402 (1988-09-01), Love
patent: 4797205 (1989-01-01), Kitamura
patent: 4980070 (1990-12-01), Lieberman

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