US PATENT SUBCLASS 420 / 19
.~.~.~.~ Adding magnesium as a liquid, vapor or as a solid agent entrained by gas (e.g., fluidized)

Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

8  DF  FERROUS (I.E., IRON BASE) {24}
9  DF  .~ 1.7 percent or more carbon containing {2}
13  DF  .~.~ 2.7 percent or more carbon equivalent containing (i.e., cast iron) {7}
18  DF  .~.~.~ Processes of adding magnesium {7}
19.~.~.~.~ Adding magnesium as a liquid, vapor or as a solid agent entrained by gas (e.g., fluidized)

DEFINITION

Classification: 420/19

Adding magnesium as a liquid, vapor or as a solid agent entrained by a gas (e.g., fluidized):

(under subclass 18) Process of adding magnesium to an alloy or metallic composition where the magnesium is added in molten form as a liquid, is vaporized and added to the alloy metallic composition in the gaseous state or wherein a solid agent containing magnesium is entrained in a gas and added to the alloy or metallic composition while so entrained.

(1) Note. The recitation that a solid magnesium additive is added in a "fluidized" state renders a patent appropriate for this subclass.