US PATENT SUBCLASS 34 / 612
.~.~ Sheet elevator type


Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
611  DF  .~ Sheet, web, or strand {3}
612.~.~ Sheet elevator type {1}
613  DF  .~.~.~> Coacting parallel threaded members


DEFINITION

Classification: 34/612

Sheet elevator type:

(under subclass 611) Subject matter including a mechanism to raise or lower a sheet or other planar sheetlike material and having means peculiar to the handling of a sheet individually.

(1) Note. The sheet handling means may be in the form of a sheet gripper, flier, sheet, or can lid edge engaging screw, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

147, for means moving material, including sheetlike material, in a spiral path.

189, and 190, for similar apparatus even though disclosed for handling a sheet but having no means for individually handling the sheet.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven, for a conveyor, or plural conveyors, having a platform, gripper, or opposed surfaces that move vertically and thus provide means suitable for raising or lowering sheet material, including 346.1+, 463.1+, 604+, 625, 626.1+, 663, and 793+.