US PATENT SUBCLASS 198 / 778
.~ Spiral
Current as of: June, 1999
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DEFINITION
Classification: 198/778
(under subclass 618) Apparatus having a load-supporting surface which traverses a spiraling path over which the load will be conveyed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
657, for screw conveyors in which a rotatable helical surface moves the conveyed load.
724, for rotating pusher means which may move the conveyed load over a spiral path.
813+, for an endless conveyor belt having means to maintain or to adjust the tension on said belt.
