US PATENT SUBCLASS 209 / 349
.~.~.~.~.~.~ 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}
346  DF  .~.~.~.~ With vertical shake {2}
348  DF  .~.~.~.~.~ Pivoted {1}
349.~.~.~.~.~.~ With impact

DEFINITION

Classification: 209/349

(under subclass 348) Flat horizontal or inclined sifters moving vertically on horizontal pivots or axes on rockers, the movement being modified by impact, jar, or bump at some stage.