Animal husbandry – Entomological culture device – Egg treatment – production – or storage
Patent
1992-05-11
1993-06-22
Weiss, John G.
Animal husbandry
Entomological culture device
Egg treatment, production, or storage
119 5104, A01K 6300, A01K 6306
Patent
active
052208818
ABSTRACT:
An apparatus to direct an air barrier between a fish tank cover mounted above a fish tank is arranged to include a housing directing pressurized air into the cover for ventilation through the cover providing an air barrier. A modification of the invention includes manifold structure to enhance dispersion of pressurized air between the manifold cover hood and an underlying fish tank.
REFERENCES:
patent: 3091220 (1963-05-01), Willinger et al.
patent: 3721212 (1973-03-01), Groth
patent: 3857366 (1974-12-01), Willinger
patent: 4151810 (1979-05-01), Wiggins
patent: 4206719 (1980-06-01), Faris
patent: 4552093 (1985-11-01), Puckett
patent: 5072695 (1991-12-01), Newton et al.
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