US PATENT SUBCLASS 241 / 132
.~.~.~.~ With means in addition to weight of plural surfaces for urging surfaces toward contact

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}
123  DF  .~.~ Planetary movement of plural surfaces {4}
127  DF  .~.~.~ Forcible away from common surface {4}
132.~.~.~.~ With means in addition to weight of plural surfaces for urging surfaces toward contact

DEFINITION

Classification: 241/132

(under subclass 127) Apparatus having any means (such as pressure applying mechanism, springs, added dead weights, weight receiving receptacles, etc.) in addition to the weight of the plural surfaces for urging the surfaces toward contact with the common surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

122, for plural surfaces spring urged against a common surface which rotates on a horizontal axis.

130, for pivotally mounted plural surfaces having spring or the like means for modifying the centrifugal force which urges the surfaces toward contact with the common surface.