US PATENT SUBCLASS 241 / 240
.~.~.~.~.~ Sectional nonrotary surface having independently adjustable or yieldable parts

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}
239  DF  .~.~.~.~ Nonrotary surface adjustable or yieldable relative to rotary surface {2}
240.~.~.~.~.~ Sectional nonrotary surface having independently adjustable or yieldable parts

DEFINITION

Classification: 241/240

(under subclass 239) Apparatus in which the nonrotary surface which cooperates with the rotary surface is made up of a plurality of independently adjustable sections.

(1) Note. For purposes of this classification, circumferential or tangential flow devices in which material is subjected to the action of a single rotary surface cooperating with a plurality of nonrotary surfaces are considered to present a single comminuting zone. Such devices are therefore classified in this or other appropriate subclasses in this group rather than as a plural comminutor combination.

SEE OR SEARCH THIS CLASS, SUBCLASS:

160, for the combination of a plurality of rotary surfaces each cooperating with a nonrotary surface.