US PATENT SUBCLASS 241 / 260.1
.~.~.~.~.~ Worm or screw comminutor


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}
260  DF  .~.~.~.~ Cooperating non-smooth surface characteristics {4}
260.1.~.~.~.~.~ Worm or screw comminutor


DEFINITION

Classification: 241/260.1

(under subclass 260) Apparatus provided with a rotary helical comminuting member.

(1) Note. The device herein is distinguished from those of subclass 247 in that the worm is the only comminutor (other than the cooperating surface) in this subclass (260.1) whereas the device of subclass 247 is provided with an additional comminuting member, the worm or screw functioning as a feeder which may also comminute as it feeds.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82.1+, for a helical pusher device provided with a comminuting surface having material discharge openings.

243+, for an intermeshing cooperating nonsmooth surface.