US PATENT SUBCLASS 406 / 11
.~ Responsive to obstacle in system

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}
11.~ Responsive to obstacle in system

DEFINITION

Classification: 406/11

Responsive to obstacle in system:

(under subclass 10) Subject matter wherein the sensor detects the presence of an article or quantity of material which is lodged in the conveyor*.