US PATENT SUBCLASS 432 / 139
.~.~.~ Plough, rake, screw, or stirrer means

Current as of: June, 1999
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432 /   HD   HEATING

120  DF  WORK CHAMBER HAVING HEATING MEANS {12}
121  DF  .~ Having means by which work is progressed or moved mechanically {9}
136  DF  .~.~ Combustion products generated in or fed to chamber {4}
139.~.~.~ Plough, rake, screw, or stirrer means {1}
140  DF  .~.~.~.~> Moved by endless carrier

DEFINITION

Classification: 432/139

(under subclass 136) Apparatus including a blade or plough mounted for movement through or against particulate work to advance the work or change the interrelationship of the particles.

SEE OR SEARCH CLASS

110, Furnaces,

225+, for a multiple hearth dryer provided in a refuse incinerator.

366, Agitating,

241+, for an agitator having a stationary mixing chamber and a movable stirrer.