Filter for aquariums
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United States of America Patent
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-
Nov 3, 1992
Grant Date -
N/A
app pub date -
Jun 3, 1991
filing date -
Jun 14, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
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