US PATENT SUBCLASS 209 / 257
.~.~ Conveyors


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

233  DF  SIFTING {16}
255  DF  .~ Discharging {5}
257.~.~ Conveyors


DEFINITION

Classification: 209/257

(under subclass 255) Means and methods wherein conveyors are employed to discharge material, either oversize, undersize, or both, from sifters.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284, 317, 371, and 375, for other combinations including a sifter and a discharge conveyor.

420, for portable sifter.

SEE OR SEARCH CLASS

37, Excavating,

307+, for dredgers. 171, Unearthing Plants or Buried Objects,

89, 123, 124+, and 138 for recovery devices in which a reticulated means for screening desired objects from a mass of earth is provided with a cooperating, conveyor means for receiving and carrying away from said reticulated means oversize and/or undersize material.

198, Conveyors: Power-Driven, appropriate subclasses, for conveyor structure, per se.

460, Crop Threshing or Separating,

15, 59+, 79+, and 123 for threshers including discharge conveyors.