US PATENT SUBCLASS 266 / 189
.~.~.~ With means to cool fluid feeding 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}
189.~.~.~ With means to cool fluid feeding means

DEFINITION

Classification: 266/189

(under subclass 186) Device including means for supplying a cooling medium to the fluid-feeding means to maintain the temperature of said feeding means within acceptable limits.

SEE OR SEARCH CLASS

110, Furnaces,

182.5, for a cooled tuyere means for a furnace of general utility.

122, Liquid Heaters and Vaporizers,

6.6, for a tuyere having a closed water cooling system.