Aquarium filter assembly

Details Aquarium filter assembly Aquarium filter assembly

1991-06-03

1992-03-24

Hruskoci, Peter

Liquid purification or separation

Processes

Separating

210806, 210117, 210123, 210128, 210169, 210193, 2104162, 210420, 119 5, A01K 6304

Patent

active

050985850

ABSTRACT:
An aquarium filter assembly which can be utilized as a diatomaceous earth filter which is self-priming. The filter includes a housing having a pump means from which depends a filtering element. The water pumped through the filtering element can be directed either back into the housing for recirculation of the water in the housing, or out of the housing and back into the aquarium tank for filtering of the aquarium tank water. A valve within the housing operates to permit water entry into the housing upon initial insertion and during filtration of the aquarium tank water. The valve closes when the water flow from the filtering element is directed back into the housing. Diatomaceous earth can be added into the housing and the water recirculated within the housing serves to self-prime the filter element. After charging the filter element, the water flow from the filtering element is directed into the aquarium tank and the valve opens to permit regular filtering of the aquarium tank water.

REFERENCES:
patent: 4036756 (1977-07-01), Dockery
patent: 4490250 (1984-12-01), Dockery
patent: 4761227 (1988-08-01), Willinger et al.
patent: 4842727 (1989-06-01), Willinger et al.
patent: 4915828 (1990-04-01), Meyers et al.
patent: 5062950 (1991-11-01), Shieh

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