US PATENT SUBCLASS 241 / 250
.~.~.~.~ With moving cooperating 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}
244  DF  .~.~.~ Axial or radial flow of material (e.g., disc mill, or cone and shell mill) {6}
250.~.~.~.~ With moving cooperating surface {1}
251  DF  .~.~.~.~.~> Both cooperating surfaces rotate {2}

DEFINITION

Classification: 241/250

(under subclass 244) Devices in which the rotary surface cooperates with a comminuting surface which moves during the comminuting operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206, for compound movement elements which cooperate with a moving surface.

237, for circumferential or tangential comminutors, having means to move the nonrotary surface.