Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Patent
1989-04-18
1991-02-26
Spitzer, Robert
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Filter cleaning
210138, 2103331, 210411, 210488, 210498, B01D 2500, B01D 2938
Patent
active
049959689
ABSTRACT:
A back flushable filter which has a number of separable sections (2) which can be separately accessed and there can be provided a flow pattern so that one of the sections is being back flushed while the other sections are providing normal filtering. A valve configuration (11) providing for such access can be inched around to select each section in term. The filter preferably comprises a stack of separable segments which provide for inclined gaps between adjacent parts of each adjoining stack element with the convergents and gap size selected to encourage compaction of particles within the converging part of each gap but further selected such that on back flushing such compacted particles can be readily disgorged for total cleansing.
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