Aquarium filter

Details Aquarium filter Aquarium filter

1985-03-27

1986-10-07

Metz, Andrew H.

Liquid purification or separation

Structural installation

Closed circulating system

2102212, 2104161, 2104162, 261121R, E04H 316, E04H 320

Patent

active

046157980

ABSTRACT:
An aquarium filter (10) is provided for filtering aquarium water and returning to the aquarium (16) a mixture of air and water. Water is taken from the aquarium by a demand flow syphon system (24) in which water flows into the aquarium filter of the invention as needed. The water is then forced to flow through filtering media, supported on a platform (38) and maintained in compartments (44, 46). The filtered water is introduced to the bottom (80) of a discharge tube (60) which includes a source of air (70). The air is used to pump the filtered water back to the aquarium. Prior to discharge into the aquarium, noise suppression means (94, 96) reduce the noise level of the air/water mixture. The aquarium filter of the invention is capable of operating at flow rates of 50 gal/hr and greater.

REFERENCES:
patent: 2782161 (1957-02-01), Willinger et al.
patent: 3273717 (1966-09-01), Canterbury
patent: 3321082 (1967-05-01), Willinger
patent: 3854450 (1974-12-01), Puckett
patent: 4077877 (1978-03-01), Orensten et al.
patent: 4268387 (1981-05-01), Hall

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