US PATENT SUBCLASS 406 / 20
.~.~.~ With stepped reset for each load article introduced at intake

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}
12  DF  .~ Control of conveying fluid {4}
19  DF  .~.~ Responsive to presence or absence or quantity of load {4}
20.~.~.~ With stepped reset for each load article introduced at intake

DEFINITION

Classification: 406/20

With stepped reset for each load article introduced at intake:

(under subclass 19) Subject matter including load article sensors at the inlet* and outlet* of the fluid current conveyor*, wherein the conveying fluid controller is activated or deactivated by a mechanism which is incrementally advanced toward a conveyor deactivating position each time a load article is detected at the outlet*, and is incrementally retracted from the deactivating position each time a load article is detected at the inlet*.