Liquid purification or separation – Processes – Separating
Patent
1997-11-14
1999-10-05
Popovics, Robert
Liquid purification or separation
Processes
Separating
210400, 210401, B01D 3304
Patent
active
059618477
ABSTRACT:
An improved filter apparatus includes an upper tank for holding dirty liquid and has a perforated plate. A lower compartment is beneath the plate for receiving liquid from the upper tank. A permanent filter belt for filtering particulate from the dirty liquid is arranged in a first circulating path across the plate. A first pair of drive loops are attached on respective sides of the belt. A drag conveyor having flights is arranged in a second circulating path across the plate. The belt is positioned between the plate and the flights of the conveyor across the plate. A second pair of drive loops are attached on respective sides of the flights. A driving mechanism is operable with the drive loops for indexing the belt and the conveyor along the circulating paths such that a fresh segment of the belt is periodically indexed over the plate while a dirty segment of the belt is being cleaned and the flights of the conveyor carry away accumulated particulate filtered by the belt.
REFERENCES:
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patent: 4055497 (1977-10-01), Creps et al.
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patent: 4761226 (1988-08-01), Creps
patent: 5330648 (1994-07-01), Benschoter et al.
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patent: 5344556 (1994-09-01), McEwen
patent: 5565112 (1996-10-01), Bratten
patent: 5601729 (1997-02-01), Bratten
Creps John L.
Hallett Richard A.
McEwen Stephen N.
Tenniswood Clayton E.
Henry Filters, Inc.
Popovics Robert
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