Dennis A Rustad, Age 7034608 310Th St, Clontarf, MN 56226
Dennis Rustad Phones & Addresses
34608 310Th St, Clontarf, MN 56226 (320) 392-0000 (320) 392-5367
Edina, MN
Minneapolis, MN
Mentions for Dennis A Rustad
Publications & IP owners
Us Patents
Aquaculture System
US Patent:
5178093, Jan 12, 1993
Filed:
Jul 8, 1992
Appl. No.:
7/910862
Inventors:
Kenneth Reese - Hancock MN
Dennis Rustad - Hancock MN
Curtis Reese - Hancock MN
Dennis Rustad - Hancock MN
Curtis Reese - Hancock MN
Assignee:
Glacial Hills, Inc. - Hancock MN
International Classification:
A01K 6304
US Classification:
119 3
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.
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