Aeration and filtration pump for aquariums

Details Aeration and filtration pump for aquariums Aeration and filtration pump for aquariums

1977-06-14

1979-03-20

Granger, Theodore A.

Liquid purification or separation

Structural installation

Closed circulating system

210416AS, 415215, 417424, B01D 3502, E04H 316

Patent

active

041452895

ABSTRACT:
An aeration and filtration pump for aquariums, including a housing formed with openings through which the aerated and filtered air can return to the aquarium tank, and an impeller enclosure member positioned within the housing. The impeller enclosure member includes an intermediate portion and an upper portion formed with spaced openings, with a screw impeller being positioned within said intermediate region of said enclosure member for impelling water upwardly within said member. Air impeller means are mounted above the screw imepller and force air drawn into said housing downwardly form aerating the water impelled upwardly by the screw impeller. Water is admitted to the bottom of the unit, and filter material is positioned between the converter member and the housing, with the aerated water passing through the filter material and the openings in the housing wall for return to the tank.

REFERENCES:
patent: 2194037 (1940-03-01), Thuma
patent: 2275428 (1942-03-01), Haldeman
patent: 2335756 (1943-11-01), Haldeman
patent: 2515538 (1950-07-01), Wall
patent: 2533936 (1950-12-01), Holmes et al.
patent: 3610416 (1971-10-01), Otto
patent: 3635344 (1972-01-01), Lovitz
patent: 3662889 (1972-05-01), Takarabe
patent: 3807708 (1974-04-01), Jones
patent: 4039453 (1977-08-01), Horrath

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