US PATENT SUBCLASS 209 / 314
.~.~.~.~.~ Stepped

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

233  DF  SIFTING {16}
*  DD  .~ Plane sifters {2}
*  DD  .~.~ Horizontal and inclined {4}
*  DD  .~.~.~ Reciprocating {6}
311  DF  .~.~.~.~ Multiple {4}
314.~.~.~.~.~ Stepped

DEFINITION

Classification: 209/314

(under subclass 311) Flat reciprocating sifters arranged end to end in stepped relation, material passing from one to another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

151, for fluid suspension type separators involving feeding the material over plane elements in stepped relation.

265, and 266, for sifters having guides to position the particles relative to the sifting elements.