Rotary sorting apparatus
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United States of America Patent
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Oct 4, 2016
Grant Date -
Feb 18, 2016
app pub date -
Jul 11, 2015
filing date -
Aug 13, 2014
priority date (Note) -
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Abstract
A rotary sorting apparatus comprises a large-diameter rotary drum for sorting a mixture of materials received through a first end of the drum and expelled through a second end. A plurality of slew rings are attached circumferentially to the outer surface of the drum for supporting and rotating the drum. Each slew ring comprises an inner race placed concentrically within an outer race, with bearings between them allowing the inner race to rotate freely within the outer race. The inner surface of the inner race is attached to the outer surface of the drum and rotates with the drum, while the outer surface of the outer race is fixed to the supporting structure. A rotator, such as a wheel, in contact with the outer surface of the drum causes the drum to rotate about its longitudinal axis.
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