Dual-action aquarium filter

Details Dual-action aquarium filter Dual-action aquarium filter

1989-04-03

1991-04-09

Jones, W. Gary

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Transparent

210151, 210169, 2102211, 2104162, 119 5, E04H 400, C02F 124

Patent

active

050062301

ABSTRACT:
An aquarium water filtration means includes intake means for aquarium water, prefilter means, and water transfer means for transferring aquarium water from the intake means to the prefilter means. Both mechanical and froth filtration of the aquarium water is carried out in the prefilter, which comprises a plurality of chambers separated by walls of different heights. The aquarium water is gravity fed into and through the prefilter, and between the various chambers of the prefilter, its flow being determined by the relative heights of the separating walls, as well as by the heights of openings in certain of the walls.

REFERENCES:
patent: 3301779 (1967-01-01), Kovacs
patent: 3616919 (1971-11-01), Feddern
patent: 3661262 (1972-05-01), Sanders
patent: 3775311 (1973-11-01), Mook et al.
patent: 3994811 (1976-11-01), Cohen et al.
patent: 4043299 (1977-08-01), Birkbeck
patent: 4333829 (1982-06-01), Walther
patent: 4585557 (1986-04-01), Turnquist
patent: 4606821 (1986-08-01), D'Imperio
patent: 4684462 (1987-08-01), Augustyniak
patent: 4834872 (1989-05-01), Overath
patent: 4844013 (1989-07-01), de Hann et al.

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