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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
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A method for removing contaminants from a material (39), such as resin particles, includes the steps of providing a vessel (50), directing a cleaning fluid (41) into the vessel (50), transferring the material into the vessel (50), moving the material within the vessel (50), and removing contaminants from the material as cleaning fluid (41) flows in the vessel (50). The vessel (50) has a vessel inlet (52) and a spaced apart vessel outlet (54). The cleaning fluid (41) is directed into the vessel (50) so that the cleaning fluid (41) flows in the vessel (50). The material (39) is transferred into the vessel (50) through the vessel inlet (52), and the material (39) is then moved within the vessel (50) from the vessel inlet (52) towards the vessel outlet (54). The cleaning fluid (41) flowing in the vessel (50) contacts the material (39) while the material is moving from the vessel inlet (52) toward the vessel outlet (54) and removes contaminants (39) from material (39). The material (39) can be moved substantially continuously within the vessel (50) between the vessel inlet (52) and the vessel outlet (54).
Bohnert, George W. (Harrisonville, MO), De Laurentiis, Gary M. (Jamestown, CA)
12/ 334,254
December 12, 2008
GOVERNMENT SPONSORED DEVELOPMENT [0002] The U.S. Government has rights in this invention pursuant to contract number DE-AC04-01AL66850 with the United States Department of Energy.