Animal husbandry – Entomological culture device – Egg treatment – production – or storage
Patent
1992-07-08
1993-01-12
Weiss, John G.
Animal husbandry
Entomological culture device
Egg treatment, production, or storage
119 5, A01K 6304
Patent
active
051780933
ABSTRACT:
An aquaculture system comprising a water retaining aquaculture vessel with a bottom wall and side walls along with an air lift system being provided for aerating the water. Particulate material is removed from the bottom of the vessel through conventional extraction apparatus. In addition, a plurality of discrete open-cell foam substrate members are provided with substantial surface contact area for substantially continuous circulation through the aquaculture vessel, with the substrate members comprising an open cell foam member having a density of between about 1.1 to 1.7 pounds per cubic foot, and fabricated from a matrix material having a specific gravity of between about 1.8 and 2.2. The surface area as well as the bulk of the foam substrate members have typically between about 25 and 100 individual cells per inch. The aquaculture vessel is provided with water recirculation as well as introduction of oxygen into the water through recirculation or recycling of the foam substrate members. A filtration system is interposed in the water recirculation system in order to trap, isolate, and otherwise separate solid debris in the form of fecal material or the like from the recirculating (recycled) water.
REFERENCES:
patent: 4028245 (1977-06-01), Stahler
patent: 4030450 (1977-06-01), Hoult
patent: 4052960 (1977-10-01), Birkbeck et al.
patent: 4187187 (1980-02-01), Turbeville
patent: 5081954 (1992-01-01), Monns
Reese Curtis
Reese Kenneth
Rustad Dennis
Glacial Hills, Inc.
Weiss John G.
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