US PATENT SUBCLASS 406 / 15
.~.~.~ To initiate or 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.~.~.~ To initiate or terminate fluid current {1}
16  DF  .~.~.~.~> In response to introduction or discharge of load {2}

DEFINITION

Classification: 406/15

To initiate or terminate fluid current:

(under subclass 14) Subject matter wherein the fluid current conveyor* assumes a dormant condition in which the fluid current is stopped or is substantially reduced, and wherein the controller either starts the conveying current or stops the conveying current and returns the conveyor* to its dormant state.