Aquarium filter assembly

Details Aquarium filter assembly Aquarium filter assembly

1975-06-10

1977-07-19

Granger, Theodore A.

Liquid purification or separation

Structural installation

Closed circulating system

137142, E04H 320

Patent

active

040367568

ABSTRACT:
An aquarium filter comprising a siphon housing assembly and a filter holding tank assembly. The siphon housing assembly supports a pump assembly which functions to draw water from the aquarium through the siphon housing assembly and to pump the water to the filter holding tank assembly. The pump assembly utilizes a centrifugal impeller to pump the water through a pump outlet to the filter holding tank assembly. In addition, a venturi outlet is provided in the pump assembly near the pump outlet which produces a venturi vacuum to siphon water from the aquarium and through the siphon housing assembly.
The pump assembly pumps water from the siphon housing assembly into a filter bag situated in the filter holding tank assembly. The filter bag is porous and coated inside with diatomaceous earth for removing impurities from the aquarium water. The filter holding tank assembly includes an overflow return area for returning the filtered water to the aquarium.

REFERENCES:
patent: 117750 (1971-08-01), De Lagillardles
patent: 264197 (1882-09-01), Saunders
patent: 2295982 (1942-09-01), Widman
patent: 2363539 (1944-11-01), Loughridge
patent: 2772867 (1956-12-01), Cleckner
patent: 3321081 (1967-05-01), Willinger
patent: 3511376 (1970-05-01), Sesholtz
patent: 3525435 (1970-08-01), Conner, Jr.
patent: 3584602 (1971-06-01), Stasio
patent: 3734853 (1973-05-01), Horrath
patent: 3738620 (1973-06-01), Ennis
patent: 3747762 (1973-07-01), White
patent: 3771544 (1973-11-01), Horrath

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