US PATENT SUBCLASS 406 / 31
.~.~.~ Responsive to presence, absence, or quantity of load

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

10  DF  WITH MEANS TO CONTROL CONVEYING FLUID OR MOVEMENT OF LOAD IN RESPONSE TO SENSED CONDITION {3}
28  DF  .~ Control of load input or output {1}
29  DF  .~.~ Input {2}
31.~.~.~ Responsive to presence, absence, or quantity of load {1}
32  DF  .~.~.~.~> Level or weight of load in receptacle {1}

DEFINITION

Classification: 406/31

Responsive to presence, absence, or quantity of load:

(under subclass 29) Subject matter wherein the load input controller is regulated by a sensor which detects either the amount of the load or whether or not the load is at a particular location.