US PATENT SUBCLASS 266 / 223
.~.~.~.~ Having control means

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}
223.~.~.~.~ Having control means

DEFINITION

Classification: 266/223

(under subclass 218) Device wherein a regulating means is provided in the flow path to control fluid flow into the treating vessel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82+, for means correlating the flow of diverse fluents responsive to a sensed condition.

187, for regulating the flow of a fluid into an ore treating or metal extracting means.

266, for a tuyere means combined with a flow-control means.