US PATENT SUBCLASS 406 / 133
.~.~.~.~.~ Sleeve or conduit

Current as of: June, 1999
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406 /   HD   CONVEYORS: FLUID CURRENT

108  DF  INTAKE TO FLUID CURRENT CONVEYOR {7}
122  DF  .~ Load receptacle type {9}
127  DF  .~.~ With valve between receptacle and fluid conveyor {1}
128  DF  .~.~.~ Reciprocating, rotating, or swinging {3}
132  DF  .~.~.~.~ Vertically movable {1}
133.~.~.~.~.~ Sleeve or conduit

DEFINITION

Classification: 406/133

Sleeve or conduit:

(under subclass 132) Subject matter wherein the vertically movable flow controlling member is in the form of a hollow cylinder or tube.

(1) Note. The hollow cylinder or tube may be the intake conduit.