Classifying – separating – and assorting solids – Fluid suspension
Reexamination Certificate
2005-04-26
2005-04-26
Walsh, Donald P. (Department: 3653)
Classifying, separating, and assorting solids
Fluid suspension
C209S133000, C209S138000, C209S139100, C209S154000
Reexamination Certificate
active
06883667
ABSTRACT:
The invention is an automatic debris separation system for effecting air separation of fragmented materials, such as size-reduced fiber feedstocks derived from textile wastes. The system uses high-velocity air within an elutriation assembly to efficiently remove ferrous and non-ferrous metal debris from recyclable polymer fibers. In particular, the system may employ automatic process control strategies to vary airflow within the elutriation assembly in process-controlled response to measured metal contamination, thereby ensuring that post-separation metal contamination is maintained at or below an upper contamination limit.
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Walsh Donald P.
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