US PATENT SUBCLASS 198 / 322
.~ With means to control the operation of the section

Current as of: June, 1999
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198 /   HD   CONVEYORS: POWER-DRIVEN

321  DF  CONVEYOR OR ACCESSORY THEREFOR SPECIALIZED TO CONVEY PEOPLE {5}
322.~ With means to control the operation of the section {1}
323  DF  .~.~> By means responsive to an unsafe operating characteristic of the system

DEFINITION

Classification: 198/322

(under subclass 321) Device wherein the section is provided with means to regulate the operation of the section, which means effects such regulation in response to an operating instruction which is either originated by a condition sensing means or is introduced into the system by the operator.

(1) Note. Examples of structure to be found herein include passenger controlled conveyors, jam prevention safety circuits, section speed controllers, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

854+, for means to drive, start or stop a conveying section, especially subclass 856, for controls responsive to abnormal operating conditions of a conveying section.