US PATENT SUBCLASS 198 / 457.04
.~.~.~ Item supporting screw causes direction change

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

434  DF  CONVEYOR SYSTEM FOR ARRANGING OR REARRANGING STREAM(S) OF ITEMS {5}
456  DF  .~ By laterally or vertically moving successive items in longitudinally moving stream {2}
457.01  DF  .~.~ To change direction of longitudinally moving stream {6}
457.04.~.~.~ Item supporting screw causes direction change

DEFINITION

Classification: 198/457.04

Item supporting screw causes direction change:

(under subclass 457.01) Subject matter wherein the conveyor includes a conveying section comprising a helical surface formation which is rotated about its longitudinal axis and the surface supports the article and causes a change in a direction of movement of the article.