Liquid purification or separation – Filter – Medium – cleaner or agitator moved by fluid
Patent
1994-05-16
1995-01-24
Lithgow, Thomas M.
Liquid purification or separation
Filter
Medium, cleaner or agitator moved by fluid
210169, 210409, 210411, 134 53, 134 54, 134 55, 134138, 134152, 134170, 211163, B08B 302, B08B 900, B01D 2968, B01D 2974
Patent
active
053840453
ABSTRACT:
A dirty swimming pool filter is journaled for rotation about a vertical array of nozzles and spun about a vertical axis by the action of the spray. The rotation can be fast enough that centrifugal forces aid in the cleaning operation by sloughing dirt off the outside of the filter. One version of the apparatus includes a second vertical array of nozzles external to the filter and directing a spray against the outer face of the filter, which aids in sloughing dirt off it. This second array is rotatable about its own vertical axis and can be used to control the rate of rotation of the filter being cleaned. A sealed bearing is provided at the base of the filter to allow free rotation about the first vertical array of nozzles.
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Chmielewski Doreen M.
Chmielewski Jerry
Kiewit David
Lithgow Thomas M.
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