US PATENT SUBCLASS 75 / 682
.~.~.~.~.~.~.~.~ And adding solid

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
414  DF  .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7}
585  DF  .~.~.~ Nonferrous {25}
671  DF  .~.~.~.~ Aluminum(Al) {4}
678  DF  .~.~.~.~.~ Treating molten Aluminum(Al) {3}
680  DF  .~.~.~.~.~.~ Adding gas {2}
681  DF  .~.~.~.~.~.~.~ Containing Halogen atom {1}
682.~.~.~.~.~.~.~.~ And adding solid

DEFINITION

Classification: 75/682

And adding solid:

(under subclass 681) Process in which a solid is added to molten metal that contains over 50 percent by weight Aluminum (Al).