Aeration vessel for use in aerobic wastewater treatment system

Liquid purification or separation – Gravitational separator

Reexamination Certificate

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C210S532100, C210S220000

Reexamination Certificate

active

11263462

ABSTRACT:
An aeration vessel for use in a aerobic wastewater treatment system, the aeration vessel comprised of a bottom section having a bottom wall and an inverted frustoconical side wall, a top section having a frustoconical side wall and a partition having an inverted frustoconical side wall, the top and bottom sections being provided with mating flanges which can be sealingly engaged, the partition being disposed in the aeration vessel formed by the first and second section.

REFERENCES:
patent: 3923656 (1975-12-01), Krebs et al.
patent: 6328890 (2001-12-01), Thibault
Alpha General Services, Inc., www.alphageneral.com, Product Catalog, including picture of Alpha 750 Septic Tanks—3 pages.

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