US PATENT SUBCLASS 209 / 390
.~.~.~.~.~ Brush

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

233  DF  SIFTING {16}
363  DF  .~ Elements {7}
379  DF  .~.~ Clearers {4}
385  DF  .~.~.~ Wipers {3}
389  DF  .~.~.~.~ Rotating {1}
390.~.~.~.~.~ Brush

DEFINITION

Classification: 209/390

(under subclass 389) Devices wherein rotating brushes wipe the surfaces of sifting elements to keep the sifting passages open or clear.

(1) Note. The preceding sifter with rotating agitator subclasses should be searched.

SEE OR SEARCH CLASS

55, Gas Separation,

296+, for devices such as wipers or brushes having relative traversing motion with respect to the separator to clear it of residue and see other related subjects in subclasses 282+.