US PATENT SUBCLASS 241 / 291
.~ Comminuting elements

Current as of: June, 1999
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241 /   HD   SOLID MATERIAL COMMINUTION OR DISINTEGRATION

*  DD  APPARATUS {41}
291.~ Comminuting elements {7}
292  DF  .~.~> with balancing means
292.1  DF  .~.~> Edged blades extending radially
293  DF  .~.~> Cylindrical or frusto-conical (i.e., peripheral comminuting face) {1}
296  DF  .~.~> Disklike comminuting surface (i.e., radial comminuting face) {2}
299  DF  .~.~> Annular internal comminuting face
300  DF  .~.~> Wear face to backing connections
300.1  DF  .~.~> Plural stationary edged blades

DEFINITION

Classification: 241/291

(under the class definition) Apparatus comprising single comminuting elements not provided for above.

(1) Note. Supporting means for the element in combination therewith has been included in this group except where such means locates the element relative to the frame of the machine or the other comminuting elements.

(2) Note. In all cases where a plurality of cooperating comminuting elements are claimed significantly or the driving means of a moving element was included, the device was considered to be a comminuting organization and was

classified as such and excluded from this group.

(3) Note. See COMMINUTOR OR COMMINUTOR ELEMENT SUPPORTS AND MOUNTING MEANS and Lines With Other Classes, References to Other Classes of the class definition of this class for notes to art in other classes relating to supports or shaft couplings for comminutor elements.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66+, for comminuting elements provided with means to modify the temperature thereof. 83+, for comminuting elements having openings therein to permit the discharge of material.

102, for comminuting elements deformable by contact with the material.

179+, 184, 191+, and 195+, for comminuting elements which are considered restricted in use to particular organizations and classified therewith.

235+, 242+ and 260+, for comminuting elements having nonsmooth surface characteristics where such elements are claimed significantly in combination with cooperating elements.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastic, Note particularly the class definitions for the classification of other compositions.

175, Boring or Penetrating the Earth,

327+, for an earth boring bit or bit element.

299, Mining or In Situ Disintegration of Hard Material,

79.1+, for a cutter head or tooth for recovering valuable material or breaking up hard material in situ.

420, Alloys or Metallic Compositions, for patents having claims to comminuting elements claimed solely in terms of their metal or alloy composition, whether or not the alloy is claimed, per se.

451, Abrading, 540+, for similar elements which abrade the material.