US PATENT SUBCLASS 241 / 226
.~.~.~.~ With material retaining means at axial end of rotary surface

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}
226.~.~.~.~ With material retaining means at axial end of rotary surface

DEFINITION

Classification: 241/226

(under subclass 221) Apparatus provided with means mounted at the axial end or ends of the rotary surface or surfaces which functions to prevent material from escaping at said ends.