Air blast backwash assembly for flexible filter device
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United States of America Patent
Stats
-
Oct 31, 1995
Grant Date -
N/A
app pub date -
Jan 6, 1993
filing date -
Jan 6, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter device including means to produce an air actuated purge for backwashing a filter assembly including a double sieve basket having a flexible filter between the double baskets. The backwash removes caked contaminant from the filter and baskets. The purge uses only the quantity of liquid in the housing and a blast of air to backwash the filter. The pressurized air causes roiling of the liquid and accelerates the blowing through the sieve baskets and flexible filter for the backwash to remove and loosen the contaminants. The air which follows the liquid through the filter assembly further loosens and then removes the remainder of the contaminants.
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