US PATENT SUBCLASS 209 / 250
.~.~.~ Fluid

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

233  DF  SIFTING {16}
243  DF  .~ Feeding {5}
247  DF  .~.~ Conveyors {2}
250.~.~.~ Fluid

DEFINITION

Classification: 209/250

(under subclass 247) Devices in which the material is delivered to sifters, generally by projection, suspended in a fluid.

SEE OR SEARCH CLASS

19, Textiles: Fiber Preparation,

202, 204+, and 304+ for fiber separators with pneumatic feed.

37, Excavating,

317+, for dredges which include a pump to cause a current to flow through the inlet or delusing pipe.

210, Liquid Purification or Separation, 153+, for flume stream type screens, and subclass 405 for filters having a movable prefilt distributor.

406, Conveyors: Fluid Current, appropriate subclasses, for fluid current conveyors, per se.