US PATENT SUBCLASS 241 / 89.4
.~.~.~.~ Stationary flat circular surface

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

*  DD  APPARATUS {41}
83  DF  .~ Comminuting surface provided with openings to permit discharge of material {4}
84  DF  .~.~ Cooperates with moving comminuting surface or member {6}
86  DF  .~.~.~ Cooperates with rotary comminuting member {10}
89.4.~.~.~.~ Stationary flat circular surface

DEFINITION

Classification: 241/89.4

(under subclass 86) Apparatus wherein the discharge openings pass through a level, radially extending element that has a large surface area as compared with its thickness, and which surface remains immobile during comminution.