US PATENT SUBCLASS 209 / 298
.~.~.~.~.~.~ Lifters

Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

233  DF  SIFTING {16}
*  DD  .~ Drum sifters {2}
*  DD  .~.~ Horizontal and inclined {4}
288  DF  .~.~.~ Rotating {3}
293  DF  .~.~.~.~ With agitators and conveyors {3}
296  DF  .~.~.~.~.~ Rotating {2}
298.~.~.~.~.~.~ Lifters

DEFINITION

Classification: 209/298

(under subclass 296) Rotating cylindrical or drum sifters on horizontal or inclined axes associated with means for lifting and dropping the material while within the sifting drums.

SEE OR SEARCH THIS CLASS, SUBCLASS:

294, for other drum or cylindrical sifter having a horizontal or inclined axis having means for lifting the material.

392+, for structures in which the sifting passages of the sifters are formed.