Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2005-07-19
2005-07-19
Johnson, Jonathan (Department: 1725)
Liquid purification or separation
Processes
Chemical treatment
Reexamination Certificate
active
06919032
ABSTRACT:
This invention relates to a unique apparatus and method for promoting the efficient use of gases dissolved in a liquid by limiting the amount of off-gassing or evaporation from the liquid. The apparatus and method is a distribution/retention plate, shown in a preferred embodiment as installed in a portable food washing system. The food washing system is a portable unit having a treatment chamber with an access door for the placement of food products on a loading plate. A food product is placed in the chamber and sprayed with ozonated water containing diffuse concentrations of ozone which reacts with and destroys organic contaminants on the food product. The apparatus of the present invention is a distribution/retention plate located at the bottom of the treatment chamber. The distribution/retention plate divides the treatment chamber from a reservoir and controls the rate of ozone off-gassing from the reservoir, thereby maximizing ozone concentration in the water in the reservoir. In alternative embodiments, the distribution/retention plate of the present invention is utilized in automatic ice-making systems, a cooling tower, a commercial conveyor-driven perishable food washing system, and a process water treatment system. By reducing the amount of ozone and water that is necessary to achieve the desired results, the apparatus of the present invention enables the same types and quantities of materials to be treated as other ozone-treatment systems, but at a lower cost and physical size.
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Johnson Jonathan
Rothwell Figg Ernst & Manbeck P.C.
Sanist Technologies
LandOfFree
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