Filter for aquariums

Details Filter for aquariums Filter for aquariums

1991-06-03

1992-11-03

Silverman, Stanley S.

Liquid purification or separation

Structural installation

Closed circulating system

2104162, 119 5, A01K 6304

Patent

active

051604310

ABSTRACT:
The improved filter particularly for aquariums comprises one or more perforated plates which are arrangeable side by side on an aquarium bottom and which are provided with protrusions which keep them raised so as to form an interspace. The plates are coverable by gravel or other material, and at least one of them is connected to a tube for drawing water from the interspace. Each of the plates is provided with elements suitable for channeling the drawn water toward at least one passage which is provided with a cock suitable for adjusting its flow.

REFERENCES:
patent: Re28116 (1974-08-01), Cohen
patent: 3247826 (1966-04-01), Girard
patent: 3516544 (1970-06-01), Sesholtz
patent: 4098230 (1978-07-01), Jackson
patent: 4151810 (1979-05-01), Wiggins
patent: 4897188 (1990-06-01), Ogawa
patent: 4957623 (1990-09-01), Henzlik

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