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US 4,392,953 AGranted
Aquarium filtration apparatus
AssigneeCornelius Products Inc.
InventorsDouglas P. Cornelius, Charles G. Erickson
Life of this patent
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Abstract
A power driven cleaning device for an aquarium includes filter suspended in the aquarium tank and through which water is circulated by an impeller. A first filter pad is followed by a filter cartridge, each of which spans the flow path, and which are clamped in place by a removable cover, for service.
Claims1
A power driven cleaning device for an aquarium tank having a rim, comprising:
- (a) a body adapted to be suspended in the tank on the rim of the tank, and including an impeller housing portion and a filter housing portion, for both extending into the tank;
- (b) a motor supported on said body above the rim;
- (c) an impeller rotatably supported in said impeller housing portion and having a drive connection with said motor;
- (d) said filter housing portion having a shallow rectangular nest open along its longer sides and flatwise receptive of a flat sheet of filter media;
- (e) a removable cover for fixedly holding said filter media in place, said cover being rectangular and having a flat marginal portion corresponding in length and width to said longer sides of said nest and disposed in said nest for engaging one side of the flat filter media at its periphery;
- (f) a plurality of spring clips embracing the edge portions of said cover and said filter housing portion;
- (g) means on said cover and said body defining a flow passage leading from a water inlet through said filter media, to said impeller, to a water outlet.
4 more elements
Dependencies are inferred from the claim text.