US PATENT SUBCLASS 241 / 152.1
.~ Series material flow only through plural comminuting zones

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

*  DD  APPARATUS {41}
152.1.~ Series material flow only through plural comminuting zones {5}
152.2  DF  .~.~> Diverse type comminuting zones
153  DF  .~.~> All comminuting zones of loose grinding body type
154  DF  .~.~> All comminuting zones of rotary striking member type
155  DF  .~.~> All comminuting zones of cooperating surface type {3}
165.5  DF  .~.~> All comminuting zones of rotating noncooperating type

DEFINITION

Classification: 241/152.1

Series material flow only through plural comminuting zones:

(under the class definition) Apparatus in which the material is fed in succession to a plurality of comminuting zones to be treated in series by the comminutors.

(1) Note. Where the comminuting zones were so closely related that there was difficulty in determining whether a plurality of zones or a single zone was involved, the line followed was that if there was a substantial cessation of the comminuting operation between separate zones, the patent was classified as a plural device and will be found herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29, for the process of subjecting material to a plurality of successive comminuting operations.

42, for means applying fluid to same material at a plurality of spaced points within plural comminuting zones.

43+, for means applying fluid to material within plural distinct comminuting zones.

76, for means for comminuting with means for separating or classifying material with series material flow through plural

alternate comminuting zones. 78, for means for comminuting with means for separating or classifying with a separator interposed between plural comminuting zones.

80, for means for comminuting with means for separating or classifying having a separator in the discharge from the comminuting zone and having an oversize return to the comminuting zone.

82.4, for a comminuting means including a helical pusher inside a tube which moves material toward a perforated member, with a series of axially aligned rotary knife blades.

104, for rolls frictionally driven and supported by relatively moving surfaces and additional diverse type comminutor.

105, for rolls frictionally driven and supported by relatively moving surfaces with plural comminuting zones.

108, for plural rotary or oscillatory surfaces cooperating with a common surface and a diverse type comminutor.

115+, for plural sets of rotary or oscillatory surfaces cooperating with plural common surfaces.