US PATENT SUBCLASS 241 / 260
.~.~.~.~ Cooperating non-smooth surface characteristics

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.~.~.~.~ Cooperating non-smooth surface characteristics {4}
260.1  DF  .~.~.~.~.~> Worm or screw comminutor
261  DF  .~.~.~.~.~> Intermeshing
261.1  DF  .~.~.~.~.~> Conoidal surface
261.2  DF  .~.~.~.~.~> Opposed, flat coaxial surfaces (e.g., disk mill) {1}

DEFINITION

Classification: 241/260

(under subclass 244) Devices in which one or both of the cooperating surfaces are not smooth but are provided with cooperating grooves, channels, protuberances or the like.

SEE OR SEARCH THIS CLASS, SUBCLASS:

235+, and 242, for surfaces provided with cooperating nonsmooth characteristics in other types of comminutors.

291+, for single comminuting elements provided with nonsmooth surfaces.