US PATENT SUBCLASS 266 / 219
.~.~.~.~ Having intersecting streams converging on central axis of vertical furnace

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

200  DF  MEANS FOR MELTING OR VAPORIZING METAL OR TREATING LIQUEFIED METAL {19}
216  DF  .~ By means introducing treating material {1}
217  DF  .~.~ Gaseous treating material {2}
218  DF  .~.~.~ Having fluid inlet formed in vessel wall, e.g., tuyere {5}
219.~.~.~.~ Having intersecting streams converging on central axis of vertical furnace

DEFINITION

Classification: 266/219

(under subclass 218) Device wherein a plurality of tuyeres are arranged in the wall of a vertical furnace such that the streams issuing therefrom will meet or cross in one area substantially in the center of said furnace.

(1) Note. Cupola furnaces are found herein where the sole disclosure is for melting metal.