Dry separation of contaminants from polyester materials

Details Dry separation of contaminants from polyester materials Dry separation of contaminants from polyester materials

2006-08-29

2006-08-29

Rodriguez, Joseph C (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Drum sifters

C209S306000

Reexamination Certificate

active

07097044

ABSTRACT:
A method for separating polyester materials from contaminants is disclosed suitable for, for example, a polyester recycling system. The method is a dry separation method and includes rapidly spinning a mixture of polyester and contaminants within a cleaning chamber. During the spinning of the mixture, the contaminants can be degraded and pass through a screen at the chamber wall while the polyester materials are not substantially degraded and can remain in the cleaning chamber. Polyester fines can also remain in the cleaning chamber. A cleaning device suitable for use in the process is also disclosed. The device can include a screen of a hardened material that can help degrade the contaminants and a plurality of rotating blades that can spin the mixture within the device and can also help to degrade the contaminant materials.

REFERENCES:
patent: 3928188 (1975-12-01), Link et al.
patent: 4389020 (1983-06-01), Clin et al.
patent: 5344025 (1994-09-01), Tyler et al.
patent: 5458246 (1995-10-01), Thom, Jr.
patent: 5958987 (1999-09-01), Schwartz, Jr. et al.
patent: 6147129 (2000-11-01), Schwartz, Jr.
patent: 6197838 (2001-03-01), Schwartz, Jr. et al.
patent: 6270025 (2001-08-01), Geigle et al.
patent: 6460788 (2002-10-01), de Feraudy
patent: 6629653 (2003-10-01), Fahrbach et al.
patent: 2003/0010680 (2003-01-01), Holmes, III et al.
patent: 2003/0183705 (2003-10-01), Christiani et al.
patent: 2003/0186159 (2003-10-01), Schwartz, Jr.
patent: 3120792 (1982-12-01), None
patent: 3210972 (1983-10-01), None
patent: 3210973 (1983-10-01), None

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