US PATENT SUBCLASS 241 / 259.1
.~.~.~.~ With means vary space between surfaces

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}
259.1.~.~.~.~ With means vary space between surfaces {2}
259.2  DF  .~.~.~.~.~> By fluid
259.3  DF  .~.~.~.~.~> Surface yieldably held in position

DEFINITION

Classification: 241/259.1

(under subclass 244) Apparatus provided with means to change the distance between the comminuting faces.

(1) Note. Usually the purpose of this means is to vary the particle size of the product, or to compensate for wear of the surfaces.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82.2, for means to vary particle coarseness in a helical pusher type comminutor.

230+, for an adjustable or yieldable mounting and a rotary cooperating surface.

259, for an adjustable rotary member.