Filter for aquarium
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United States of America Patent
Stats
-
Nov 3, 1992
Grant Date -
N/A
app pub date -
Apr 24, 1991
filing date -
Apr 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter for aquarium has a housing having a bottom chamber and at least one filter compartment for a filter material located above the bottom chamber, a supply arranged so that water is supplied from above so as to pass the filter compartment and float to the bottom chamber, a pump for pumping water from the bottom chamber back into the aquarium, so that the filter operates as alternating lifting-lowering filter. Each of the filter compartments has at least one overflow aspiration lifting device with an inlet located at a base side and substantially at a height of a bottom of the filter compartment and an outlet which opens downwardly toward a next one of the filter compartments.
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Cited Art Landscape
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