Apparatus and method for producing crumb rubber
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United States of America Patent
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Issued Date -
Aug 1, 2013
app pub date -
Jan 27, 2012
filing date -
Jan 27, 2012
priority date (Note) -
Abandoned
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Abstract
The apparatus and method produces fine mesh crumb rubber and provides for independently driving two parallel rolls, with one roll turning at tip speeds far above conventional cracker mills. Turning the roll at a rate (rpms) that results in “hyper” outer roll surface speeds between 1000 ft/min and 1300 ft/min., which is four and a half times the normal maximum speed of conventional mills yields several unexpected and beneficial results. The previously expected effects of operating at surface speeds about 400 ft/min are reduced or eliminated.
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