Rubbing machine and its tool pan
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United States of America Patent
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Dec 8, 2015
Grant Date -
Mar 20, 2014
app pub date -
Mar 23, 2011
filing date -
Mar 23, 2011
priority date (Note) -
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Abstract
A tool pan has a number of homocentric annular structures which have rubbing zones. Provided between the contiguous rubbing zones is at least a ramp, which is extending along the normal of the tool pan, and the height of which is increased gradually towards the fringe of the tool pan. In a rubbing machine the tool pan is used. The rubbing machine is applicable in paper making industry, and can effectively separate and fibrillate the fiber of herbage by mechanical force between a pair of tool pans, thereby needing not to use chemicals, and according with the modern conception of environmental protection.
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