Medium agitation mill
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United States of America Patent
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Sep 15, 2009
Grant Date -
Oct 9, 2008
app pub date -
Nov 23, 2007
filing date -
Apr 6, 2007
priority date (Note) -
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Abstract
The object of the present invention is to provide a medium agitation mill which is responsive to the standstill of the mill for preventing the pulverizing medium from invading the inside space of the longitudinal hollow space of the drive shaft of the impeller.In the medium agitation mill the medium separating impeller is arranged in the inside space of the agitating member, and the impeller has a plurality of vanes circumferentially arranged at intervals, and is driven by the hollow drive shaft, one end of which opens to the inside of the impeller to provide the raw material discharging port. The discharging port is provided with an on-off valve of a resilient material to open and close the discharging port.
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