US PATENT SUBCLASS 406 / 16
.~.~.~.~ In response to introduction or discharge 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}
12  DF  .~ Control of conveying fluid {4}
14  DF  .~.~ Responsive to velocity or pressure change in conveying fluid {1}
15  DF  .~.~.~ To initiate or terminate fluid current {1}
16.~.~.~.~ In response to introduction or discharge of load {2}
17  DF  .~.~.~.~.~> Discharge and introduction
18  DF  .~.~.~.~.~> With timer to terminate fluid current


DEFINITION

Classification: 406/16

In response to introduction or discharge of load:

(under subclass 15) Subject matter wherein the sensor detects a change in pressure or velocity of a fluid current as the load is introduced into or discharged from the conveyor* to start or stop the conveying current.