Filter apparatus
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United States of America Patent
Stats
-
Sep 10, 1985
Grant Date -
N/A
app pub date -
May 29, 1984
filing date -
May 29, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter apparatus in which a generally horizontal bed of filter material is supported in a tank on a porous support above the bottom of the tank and is divided by spaced partitions into individual filter cells above the support and individual filter compartments below the support, and a carriage is mounted for movement along the filter bed and has a collector hood that moves along the top of the bed to collect backwash effluent therefrom and a backwash head arranged to direct backwash fluid into the compartments below the porous support to sequentially backwash the filter cells. A cell scavenging head is mounted on the carriage for movement along the filter bed and arranged to sequentially withdraw fluid from each filter compartment and down-flow scavenge and rinse the associated filter cell subsequent to backwashing of each filter cell.
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Cited Art Landscape
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