US PATENT SUBCLASS 241 / 274
.~ Stationary comminuting surface or material bed

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

*  DD  APPARATUS {41}
274.~ Stationary comminuting surface or material bed {2}
275  DF  .~.~> Centrifugal projection of material
276  DF  .~.~> Conveyer material forcing means (e.g., scroll type or locomotive stoker type

DEFINITION

Classification: 241/274

(under the class definition) Apparatus in which a single comminuting surface is stationary relative to the material presented to it for comminution and may comprise a bed of the material being comminuted.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26, for corresponding processes involving the movement of material relative to a stationary material bed.

40, for devices in which fluid conveyed material is impacted upon a stationary abutment to effect comminution.

95, for identical devices in which the comminuting surface is provided with passages for the material.

136, for a plurality of such devices arranged for parallel or series parallel flow of material. Apparatus in which a plurality of distinct columns of material are fed against a common surface was considered to present a plurality of comminuting zones in parallel.

152.1+, for a plurality of such devices arranged for series flow of material therethrough.

198+, for devices in which material is presented to a stationary surface for comminution by a cooperating comminuting surface.

284, for mutual attrition and compression devices in which there is no disclosure of the moving material being presented to a stationary material bed for comminution.

SEE OR SEARCH CLASS

83, Cutting, appropriate subclasses, for a cutting device having a stationary anvil, bed, or ledger blade.

99, Foods and Beverages: Apparatus,

506+, and 589 for static means separating a food item.

451, Abrading,

312+, for a sandblast device in which the sand is projected by centrifugal force.