US PATENT SUBCLASS 406 / 18
.~.~.~.~.~ With timer to terminate fluid current

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  DF  .~.~.~.~ In response to introduction or discharge of load {2}
18.~.~.~.~.~ With timer to terminate fluid current

DEFINITION

Classification: 406/18

With timer to terminate fluid current:

(under subclass 16) Subject matter wherein the sensor detects a change in pressure or velocity of the fluid current as the load is introduced into the conveyor* and activates a controller to start the conveying current, and wherein a timing mechanism is also activated to stop the conveying current after a predetermined time interval.