US PATENT SUBCLASS 266 / 183
.~.~.~ By power-driven means conveying solid charge into zone

Current as of: June, 1999
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266 /   HD   METALLURGICAL APPARATUS

168  DF  MEANS FOR TREATING ORES OR FOR EXTRACTING METALS {3}
171  DF  .~ By means applying heat to work, e.g., furnace {10}
176  DF  .~.~ With means for moving solid material to or through heating zone {4}
183.~.~.~ By power-driven means conveying solid charge into zone

DEFINITION

Classification: 266/183

(under subclass 176) Device wherein means are provided for propelling the charge material to be treated into the heating zone.