US PATENT SUBCLASS 266 / 187
.~.~.~ With flow regulating means

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}
186  DF  .~.~ With means for feeding fluids {3}
187.~.~.~ With flow regulating means

DEFINITION

Classification: 266/187

(under subclass 186) Device including means to control the volume of flow of the fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82+, for a control means responsive to a sensed condition which correlates a flow of diverse fluents.

223, for a control means for a tuyere combined with a molten-metal treating means.

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