US PATENT SUBCLASS 241 / 271
.~.~.~.~ With feeding and/or discharging mechanism or control

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}
262  DF  .~.~ Reciprocating surface or surfaces {3}
270  DF  .~.~.~ Vertical rectilinear movement (e.g., stamp mills) {3}
271.~.~.~.~ With feeding and/or discharging mechanism or control

DEFINITION

Classification: 241/271

(under subclass 270) Apparatus provided with mechanism for primarily presenting material to the comminuting zone and/or removing it therefrom or for controlling the flow of material to and/or from the comminuting zone.

(1) Note. The term "mechanism" is intended to denote means in addition to gravity for positively effecting the feed and/or discharge.

(2) Note. The feeding and/or discharging must be an operation other than the mere comminuting movement of the

comminuting surfaces. However, means for moving a comminuting member out of comminuting position for the specific purpose of discharging material was considered a discharging organization for this group.

(3) Note. Material handling features in addition to those necessary to effect the mere presentation of the material to the comminuting zone or to remove the material from the comminutor were considered to be combined features which were more than mere feeding or discharging combinations and were classified in subclasses 101.01+ unless provided for elsewhere.

(4) Note. The various feeding and/or discharging subclasses of this class for feeders and/or dischargers in combination with other types of comminutors. Where no feeding and/or discharging group was provided, the patents were classified with the particular comminutor combination claimed.

SEE OR SEARCH THIS CLASS, SUBCLASS: 301, for feeders and/or dischargers combined with comminutors where the latter was claimed so broadly as to fail to present a basis for classification in a specific comminutor group.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven, for feeders and dischargers involving the use of conveyors, per se.

222, Dispensing, appropriate subclasses for fluent material dispensers, per se.

414, Material or Article Handling, for the generic subject matter of material handling, per se.