.~ Series material flow only through plural comminuting zones {5}
153
.~.~ All comminuting zones of loose grinding body type
DEFINITION
Classification: 241/153
(under subclass 152.1) Apparatus in which all of the comminuting zones are of the type in which the comminution is effected by a loose grinding body or bodies.
(1) Note. This subclass includes partitioned receptacles provided with loose grinding bodies in which the material passes from one portion of the receptacle to another in series and in which the partition is sufficiently extensive to create distinct comminuting zones.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70+, for partitioned rotary ball or rod mills in which the
partition is provided with apertures for the passage of material.
137, for such devices where the flow of material is parallel or series-parallel.