Liquid purification or separation – Structural installation – Closed circulating system
Patent
1987-11-16
1989-02-07
Fisher, Richard V.
Liquid purification or separation
Structural installation
Closed circulating system
2104162, 119 5, A01K 6304
Patent
active
048029807
ABSTRACT:
A dual action aquarium filter has a slotted base for placement in the bottom of an aquarium. The base is covered with gravel, allowing water to be filtered through the gravel and into the interior of the base. A tube extends upwardly from the base and is connected to a filtration device containing charcoal and fibrous filter material for a secondary filtering of the aquarium water. The secondary charcoal and fiber filter is contained within a disposable portion of the upwardly extending tube. A motor is mounted on top ofo the tube and is connected to a pump impeller for circulating water up through the tubular filter. Outlet holes are provided beneath the motor for returning the filtered water to the aquarium. In a second embodiment, the secondary charcoal and fiber filter is contained in a removable filter basket disposed above the pump impeller. Water is driven up the tube by the impeller and is allowed to overflow into the filter basket. The filter basket is perforated to allow filtered water to pass into an annular outlet channel and back into the aquarium. In a third embodiment of the present invention, a vacuum pump is mounted outside the aquarium and draws water up through a filter canister and returns the water to the aquarium through a spray head. This provides an aesthetic effect and also enhances aeration of the filtered water.
REFERENCES:
patent: 1965323 (1932-04-01), Taslitt
patent: 3687291 (1972-08-01), Willinger
patent: 3841999 (1974-10-01), Bennett et al.
patent: 3891555 (1975-06-01), Bennett et al.
patent: 4144841 (1979-03-01), Bliss et al.
patent: 4351270 (1982-09-01), Sabin
patent: 4385989 (1983-05-01), Margolis
patent: 4392953 (1983-07-01), Cornelius et al.
patent: 4556485 (1985-12-01), Ogawa
patent: 4606821 (1986-08-01), D'Imperio
patent: 4693817 (1987-09-01), Goldman et al.
Gilkey Charlotte E.
Gilkey Hazel E.
Fisher Richard V.
Kearns Jerry T.
Lee Coreen Y.
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