Liquid purification or separation – Plural distinct separators – Filters
Patent
1985-10-09
1987-08-11
Fisher, Richard V.
Liquid purification or separation
Plural distinct separators
Filters
210435, 210488, 55278, 55485, 55489, B01D 2946
Patent
active
046860410
ABSTRACT:
A molecular differentiation filter for filtering particles in the sub-mil range comprises a body having two chambers, a first chamber and a second chamber, the first and second chambers being defined by a chamber dividing member. The filter also comprises an inlet that is in communication with the second chamber, an outlet that is in communication with the first chamber, and a plurality of coaxial, stacked discs mounted onto the chamber dividing member, the plurality of discs resides entirely in the second chamber. The discs comprise alternating filtering discs and separation discs, wherein each of the filtering discs is a generally smooth-surfaced disc that has a filtering perimetrical edge and a plurality of substantially identical filtrate holes spaced inwardly from the perimetrical edge. In addition, each of the separation discs is a generally smooth-surfaced disc that has a plurality of substantially identical, radially-extending separation tips, and a thickness, whereby the thickness of the separation disc positioned coaxially between two adjacent filtering discs defines a filtering spacing in the sub-mil range.
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Eastlack Thomas D.
Van den Berg Teunis T.
Fisher Richard V.
Millard Wanda L.
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