Tube in a tube mechanical folding roll
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United States of America Patent
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Oct 7, 2014
Grant Date -
Oct 25, 2012
app pub date -
Apr 21, 2011
filing date -
Apr 21, 2011
priority date (Note) -
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Abstract
A processing roll having rotatable outer tube mounted on a non-rotatable inner tube by a fluid valving arrangement, is provided. The fluid valving arrangement provides angularly controlled transfer of fluid between a cavity on the inside of the inner tube and ports distributed longitudinally along an outer surface of the outer tube, while also providing distributed bearing support of either the outer tube on the inner tube, or the inner tube on the outer tube, at a plurality of locations along a longitudinal axis of the processing roll.
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