US PATENT SUBCLASS 193 / 20
.~.~.~ Valved

Current as of: June, 1999
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193 /   HD   CONVEYORS, CHUTES, SKIDS, GUIDES, AND WAYS

2 R  DF  CHUTES {25}
17  DF  .~ Vertical swing {2}
18  DF  .~.~ Counterweight {2}
20.~.~.~ Valved

DEFINITION

Classification: 193/20

(under subclass 18) Wherein the chute has a controlling gate or valve.