(under the class definition) Apparatus including structure (1) breaking up lumps formed from particulate material by the heating or (2) dividing work particles by size with recombining.
SEE OR SEARCH CLASS
209, Classifying, Separating, and Assorting Solids,
11, for a combination involving heating and classifying particulate work, except where the sole separation is a portion of the material for further heating with return of the separated portion.
241, Solid Material Comminution of Disintegration,
23, for a residual combined comminuting and heat treating process; and subclasses 65+ for a comminuting apparatus having means for modifying the temperature of the work material.