US PATENT SUBCLASS 241 / 280
.~.~ With means to force material toward periphery of comminuting surface

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

*  DD  APPARATUS {41}
277  DF  .~ Rotating comminuting surface {5}
280.~.~ With means to force material toward periphery of comminuting surface {2}
281  DF  .~.~.~> Means engaging sides of column of material
282  DF  .~.~.~> Radially arranged rectilinearly reciprocating follower

DEFINITION

Classification: 241/280

(under subclass 277) Apparatus provided with mechanism to carry the material up to and against the periphery of the comminuting surface.

(1) Note. Most of the devices classified here are the abrading wood pulp type grinders.

SEE OR SEARCH THIS CLASS, SUBCLASS:

136, 151 and 152.1+, for plural devices provided with feed means of this type.

278.1, and the notes thereto for means for forcing material against a radial or internal surface.

279, for such devices having means to rotate material.