US PATENT SUBCLASS 198 / 688.1
.~ Having means to enhance the friction or adherence between the conveyor and load at random locations on conveyor

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

618  DF  CONVEYOR SECTION {26}
688.1.~ Having means to enhance the friction or adherence between the conveyor and load at random locations on conveyor {8}
689.1  DF  .~.~> Suction
690.1  DF  .~.~> Magnetic
690.2  DF  .~.~> Transversely extending enlongated ridge means formed on or attached by nonmechanical means to the conveyor
691  DF  .~.~> Electrostatic
692  DF  .~.~> Impaling {1}
697  DF  .~.~> Load-engaging belt having separate load-impelling, projecting member swingably mounted thereon
698  DF  .~.~> Load-engaging belt having load-impelling, projecting cross members (e.g., slat, etc.) joined thereto by mechanical fastening means {1}
699.1  DF  .~.~> By a plurality of laterally spaced, projecting members on the conveyor

DEFINITION

Classification: 198/688.1

Having means to enhance the friction or adherence between the conveyor and load at random locations on conveyor:

(under subclass 618) Apparatus comprising a conveying means which is provided with means designed to enhance the frictional engagement between the load and the conveying means beyond that which result from the mere weight of the load.