US PATENT SUBCLASS 266 / 214
.~ Reverberatory refining vessel, e.g., open hearth

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}
214.~ Reverberatory refining vessel, e.g., open hearth

DEFINITION

Classification: 266/214

(under subclass 200) Device wherein the means to melt metals or to treat a molten metal comprises a treating receptacle within which hot gas sweeps over the surface of material contained within the receptacle to elevate the temperature of the material.