US PATENT SUBCLASS 75 / 440
.~.~.~.~.~ Utilizing moving hearth

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}
433  DF  .~.~.~ Iron(Fe) {18}
438  DF  .~.~.~.~ Making wrought Iron(Fe) {3}
440.~.~.~.~.~ Utilizing moving hearth

DEFINITION

Classification: 75/440

Utilizing moving hearth:

(under subclass 438) Process wherein the Iron (Fe) is treated on a moving hearth (e.g., rocking, etc.).