US PATENT SUBCLASS 241 / 229
.~.~.~.~.~ Surfaces rotate in same direction and/or mounted on non-horizontal axis

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

*  DD  APPARATUS {41}
198.1  DF  .~ Cooperating comminuting surfaces (e.g., jaw crusher) {5}
220  DF  .~.~ Rotary surface (or surfaces) {2}
221  DF  .~.~.~ Circumferential or tangential flow of material (e.g., roll mills or roll and concave mills) {7}
227  DF  .~.~.~.~ Both cooperating surfaces rotate (e.g., roll mills) {4}
229.~.~.~.~.~ Surfaces rotate in same direction and/or mounted on non-horizontal axis

DEFINITION

Classification: 241/229

(under subclass 227) Apparatus in which (1) the cooperating surfaces rotate in the same direction and/or (2) the one or both of the surfaces rotate on vertical or inclined axes and/or (3) one or both of the surfaces is eccentrically mounted on its axis.