US PATENT SUBCLASS 241 / 237
.~.~.~.~ With non-rotary surface moving means

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}
237.~.~.~.~ With non-rotary surface moving means

DEFINITION

Classification: 241/237

(under subclass 221) Apparatus in which the nonrotary surface which cooperates with the rotary surface is provided with means to move it during comminution.

SEE OR SEARCH THIS CLASS, SUBCLASS:

187, for such devices in which the rotary member is a rotary striking member.

200, for such devices in which the nonrotary surface is a moving endless belt.

201+, for such devices in which the nonrotary surface has a compound motion.

206, for such devices in which the rotary surface has a compound motion. SEE OR SEARCH CLASS

68, Textiles: Fluid Treating Apparatus,

105, for devices having similarly moving parts applied to textile treatment.

100, Presses,

47, for presses not elsewhere provided for, having automatic or triggered control of roll separation or speed.