US PATENT SUBCLASS 75 / 469
.~.~.~.~.~ Specified method of charging burden

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
458  DF  .~.~.~.~ Blast furnace reduction to produce molten Iron(Fe) {7}
469.~.~.~.~.~ Specified method of charging burden

DEFINITION

Classification: 75/469

Specified method of charging burden:

(under subclass 458) Process in which the charging of solid material at the top of the furnace is recited in more detail than a single step of nominal charging.