US PATENT SUBCLASS 241 / 142
.~.~.~.~ Circumferential or tangential material flow only

Current as of: June, 1999
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241 /   HD   SOLID MATERIAL COMMINUTION OR DISINTEGRATION

*  DD  APPARATUS {41}
134  DF  .~ Parallel material flow through plural comminuting zones {5}
139  DF  .~.~ All comminuting zones of cooperating surface type {3}
141  DF  .~.~.~ All comminuting zones of rotary surface type {2}
142.~.~.~.~ Circumferential or tangential material flow only {1}
143  DF  .~.~.~.~.~> All cooperating surfaces rotate {2}

DEFINITION

Classification: 241/142

(under subclass 141) Apparatus in which all of the comminuting zones are of the type in which the material flows circumferentially or tangentially of the rotary surface during comminution.

SEE OR SEARCH THIS CLASS, SUBCLASS:

158+, for such devices arranged in series.

221+, for single comminutors of this type.