Patent No. EP2061575 (titled "Device For Continuous Filtration Of Impurities From A Free-Flowing Mass") was filed by Schulz on Sep 12, 2007. The application was issued on Aug 7, 2013.
A device for continuous filtering of impurities from plastic melt, comprising a hollow rotary body with a disc-shaped filter on its end face, rotatably supported opposite a housing, and a discharge device with a conveyor screw and a secondary screw positioned against the filter to scrape off retained impurities.
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