US PATENT SUBCLASS 209 / 256
.~.~ Conveyors and valves

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

233  DF  SIFTING {16}
255  DF  .~ Discharging {5}
256.~.~ Conveyors and valves

DEFINITION

Classification: 209/256

(under subclass 255) Means and methods which include conveyors and valves which control delivery of material to or from the conveyors for discharge from sifters.