Concentrating evaporators – Closed evaporating chambers – Indirectly heated
Reexamination Certificate
2005-05-03
2005-05-03
Manoharan, Virginia (Department: 1764)
Concentrating evaporators
Closed evaporating chambers
Indirectly heated
C159S028100, C159S044000, C159SDIG001, C159SDIG004, C202S083000, C202S160000, C202S176000, C202S200000, C202S206000, C202S267100, C203S002000, C203S010000, C203S086000, C203S100000
Reexamination Certificate
active
06887344
ABSTRACT:
A compact, self-contained apparatus for treating wastewater containing as impurities and pollutants various non-volatile (at water boiling points) fluids such as greases, oils and soaps, a vessel for collecting the wastewater, a heating chamber including electric heating elements and a heat transfer liquid such as mineral oil to heat the wastewater admixture to boil off the water and to reduce the volume of liquid for disposal, and a wastewater supply tank positioned under the apparatus. The apparatus may further include a disposable liner to isolate the wastewater from the vessel itself and facilitate rapid and clean removal and disposal of waste material after evaporation of the water, and thermally-activated sensors to maintain a desired temperature differential between the heating elements and the heat transfer liquid contained in the apparatus.
REFERENCES:
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patent: 6200428 (2001-03-01), VanKouwenberg
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Cress et al, Solar still for purifying water used for growth chamber and mite rearing. Trans.Kans. Acad. Sci.,81(40,319-25, 1978.
Hiscock & Barclay LLP
Kareken Ronald S.
Manoharan Virginia
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