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US 5,965,016 AGranted
Fluidized bed aquarium filtration system
AssigneeThe Hartz Mountain Corporation
InventorsBernard Suchowski, Joseph E. Gargas, Robert H. Hyde, Joseph Pluchino
Life of this patent
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Abstract
An aquarium filter for removing chemical and physical waste from an aquarium. The filter can include a mechanical filter portion, followed by a fluidized bed of particles, such as sand, for removing ammonia from the water and then a chemical filter portion. The filter can be constructed in an aesthetically desirable manner and can be convenient to maintain.
Claims24
An aquarium filter comprising:
- a housing, configured to hang on the side of an aquarium, defining a water flow path for substantially all of the water flowing through the housing through a first, a second and then a third section of the housing;
- the first section including a trap constructed to mechanically remove particles from a stream of water flowing in the flow path;
- the second section constructed to provide biological filtration for subjecting water which had been mechanically filtered in the first section to treatment by living organisms, the second section including an inlet, a support plate having holes formed therethrough located above the inlet, a bed of particles which are configured to host bacteria above the support plate and an outlet above the particles, the particles and second section being sized so that the particles can become fluidized by water flowing up through the second section;
- and
- the third section including a chemical filter constructed to chemically remove organic materials from the biologically treated water.
2 more elements
An aquarium filtration system, comprising:
- a housing defining at least one column, the column having an inlet substantially at the bottom thereof, a perforated particle support plate above the inlet and a bed of particles above the plate in a fluidized condition of relative motion and expanded volume, the top of the bed of particles being relatively flat and water having a relatively uniform velocity profile across the column traveling up the column.
Dependencies are inferred from the claim text.