US PATENT SUBCLASS 266 / 253
.~.~.~ Bottom feeding furnace

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

249  DF  MEANS TREATING SOLID METAL {5}
251  DF  .~ By contact with gas {2}
252  DF  .~.~ With heating means {4}
253.~.~.~ Bottom feeding furnace

DEFINITION

Classification: 266/253

(under subclass 252) Device wherein the article is loaded into a treating chamber from underneath said chamber by means moving said article in a substantially vertical direction, e.g., an elevator.