Fish tank filter

Details Fish tank filter Fish tank filter

1986-05-30

1989-07-25

Fisher, Richard V.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Float

210169, 210258, 210261, 210264, 210291, 2104162, 119 5, B01D 2316, B01D 3530

Patent

active

048511129

ABSTRACT:
A fish tank filter comprising an overflow tank for collecting surface waters from a fish tank, means for conveying the waters to a dry filter, a dry filter comprising a plurality of vertically stacked filter pans each having a filter material therein, a means for collecting the effluent from the dry filter and conveying it to a wet filter, a wet filter comprising a plurality of serially arranged filter material-containing filter compartments in a tank, and means for returning purified water to the fish tank.

REFERENCES:
patent: 2729337 (1956-01-01), Alferman
patent: 3351328 (1967-11-01), Vetterli
patent: 3848567 (1974-11-01), Garber, Jr.
patent: 3892663 (1975-07-01), Wiedenmann
patent: 3957634 (1976-05-01), Orensten et al.
patent: 4220530 (1980-09-01), Gabriele
patent: 4312752 (1982-01-01), Malik
patent: 4552657 (1985-11-01), Ogawa

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