Three element aquarium filter cartridge

Details Three element aquarium filter cartridge Three element aquarium filter cartridge

1986-01-03

1987-12-15

Fisher, Richard V.

Liquid purification or separation

Structural installation

Closed circulating system

210315, 210489, 210496, 119 5, B01D 2702, B01D 3516

Patent

active

047131730

ABSTRACT:
A filter cartridge for use in aquarium filtration systems having mechanical, chemical and biological filtration elements. The mechanical element forms the front wall of the filter cartridge and this is bonded around the outer border thereof to a back member. The back member may be rigid or semi-rigid.

REFERENCES:
patent: 3313421 (1967-04-01), Falkenberg et al.
patent: 3327859 (1967-06-01), Pall
patent: 3347211 (1967-10-01), Falkenberg et al.
patent: 3867292 (1975-02-01), Cornell
patent: 3899424 (1975-08-01), Lake
patent: 3983843 (1976-10-01), Johnson
patent: 4265751 (1981-05-01), Willinger
patent: 4483769 (1984-11-01), Sherman

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