US PATENT SUBCLASS 241 / 115
.~.~ Plural sets of plural surfaces cooperating with plural common surfaces

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

*  DD  APPARATUS {41}
107  DF  .~ Plural rotary or oscillatory surfaces cooperate with common surface (e.g., chasing mills) {9}
115.~.~ Plural sets of plural surfaces cooperating with plural common surfaces {1}
116  DF  .~.~.~> Coaxial rotors radially arranges on same side or common surface axis

DEFINITION

Classification: 241/115

(under subclass 107) Apparatus in which there is provided a plurality of sets of plural surfaces, each of which sets cooperates with a different common surface or with a different portion of the same surface.

(1) Note. The material may flow in series from one

comminuting zone to the next or in series-parallel or through parallel paths through independent zones.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104, and 108, for devices in which a comminutor, providing plural surfaces cooperating with a common surface, is combined with another type of comminutor.

105, for similar devices providing for a plurality of comminuting zones of the type in which plural rolls are frictionally driven and supported by relatively moving surfaces.

118, and 125, for devices providing a plurality of sets of plural surfaces but in which the sets cooperate with the same common surface or the same portion thereof. 134+, and 152.1+, for devices having plural comminuting zones of the other types.