Traveling bridge filter with surface wash
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United States of America Patent
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-
Sep 18, 1990
Grant Date -
N/A
app pub date -
Jan 26, 1989
filing date -
Jan 26, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A liquid filtration system is provided which includes a traveling bridge device mounting and backwash means for successively cleaning each of a plurality of filter cells formed in a filtration tank. Both surface wash and backwash means are included in a single hood structure adapted to sealingly engage each filter cell, successively, as the traveling bridge carriage traverses the tank. The surface wash means includes a surface wash conduit for supplying liquid under pressure to the upper surface layer of each cell. The backwash means includes a backwash conduit for creating suction within each filter cell.
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