De-inking screen
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United States of America Patent
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Apr 30, 2013
Grant Date -
Aug 19, 2010
app pub date -
Feb 19, 2010
filing date -
Oct 2, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
Multiple shafts are aligned along a frame and configured to rotate in a direction causing paper products to move along a separation screen. The shafts are configured with a shape and spacing so that substantially rigid pieces of the paper products move along the screen while non-rigid pieces of the paper products slide down between adjacent shafts. In one embodiment, the screen includes at least one vacuum shaft that has a first set of air input holes configured to suck air and retain the non-rigid paper products. A second set of air output holes are configured to blow out air to dislodge the paper products retained by the input holes.
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