US PATENT SUBCLASS 209 / 336
.~.~.~.~.~.~.~ With impact

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

233  DF  SIFTING {16}
*  DD  .~ Plane sifters {2}
*  DD  .~.~ Horizontal and inclined {4}
*  DD  .~.~.~ Reciprocating {6}
*  DD  .~.~.~.~ With horizontal shake {3}
333  DF  .~.~.~.~.~ Lateral {4}
335  DF  .~.~.~.~.~.~ Pivoted {1}
336.~.~.~.~.~.~.~ With impact

DEFINITION

Classification: 209/336

(under subclass 335) Flat horizontal or inclined sifters, the sifter being supported to move on a vertical pivot or axis and the shake being produced by impact or having a jar or bump at some stage.