US PATENT SUBCLASS 241 / 128
.~.~.~.~ Pivotally mounted for forced movement

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}
128.~.~.~.~ Pivotally mounted for forced movement {1}
129  DF  .~.~.~.~.~> Centrifugally urged toward contact {1}

DEFINITION

Classification: 241/128

(under subclass 127) Apparatus in which the plural surfaces are pivotally mounted for movement toward and away from the common surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

232+, for devices having pivotally mounted rotary surfaces which cooperate with another rotary surface.