Liquid purification or separation – Processes – Separating
Patent
1995-06-07
1996-12-10
Hruskoci, Peter A.
Liquid purification or separation
Processes
Separating
210805, 210806, 134 10, B01D 2707, B01D 2925, B08B 304
Patent
active
055827438
ABSTRACT:
A liquid filter apparatus particularly useful in removing particulates from parts washing solvent. A filter assembly includes an exterior, fluid, impermeable container, preferably in the form of a flexible sidewall bag, and an interior filter element with permeable sidewalls and inlet and outlet ends, preferably in the form of a sleeve. In use, liquid entering the sleeve may pass unfiltered entirely through the sleeve and exit through a sidewall of the exterior container, or all or any part of such liquid may pass through the filter sleeve and into a portion of the apparatus outside the sleeve but inside the exterior container. From this portion, the liquid emerges in a filtered condition. Consequently, the filter continually operates in both filtration and bypass modes. Preferably the flexible sidewall container is received within a rigid support housing, two filter units are provided, and their inlets and outlets are removably secured to a manifold controlling passage of fluid to be cleaned from a liquid pump assembly and to another part of a parts washer associated with the filter.
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Danowski Thomas J.
Jacoby, Jr. William L.
Larson Douglas A.
Bufalino Angelo J.
Fitzgibbon James T.
Green Theodore M.
Hruskoci Peter A.
Safety-Kleen Corp.
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