US PATENT SUBCLASS 210 / 403
.~.~.~ Internal feed

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

348  DF  FILTER {25}
359  DF  .~ Movable medium {12}
402  DF  .~.~ Drum type {2}
403.~.~.~ Internal feed

DEFINITION

Classification: 210/403

(under subclass 402) Apparatus in which prefilt enters the inside of the rotating filter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

394, for an internally fed rotary drum with cleaning means.

SEE OR SEARCH CLASS

209, Classifying, Separating, and Assorting Solids,

288+, for rotating drum sifters for solids.