US PATENT SUBCLASS 366 / 156.2
.~.~.~.~ Plural screw feeders

Current as of: June, 1999
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366 /   HD   AGITATING

150.1  DF  HAVING SPECIFIED FEED MEANS {16}
154.1  DF  .~ Agitation of material in feeder or supply reservoir {3}
155.1  DF  .~.~ Rotatable impeller {2}
156.1  DF  .~.~.~ Screw conveyor {6}
156.2.~.~.~.~ Plural screw feeders

DEFINITION

Classification: 366/156.2

Plural screw feeders:

(under subclass 156.1) Subject matter wherein there is more than one rotatable impeller structure having a continuous helical blade which rotates about its longitudinal axis in the feed means.

(1) Note. There may be a single feed means having plural screw feeders or plural feed means each having a screw feeder.