US PATENT SUBCLASS 75 / 577
.~.~.~.~.~.~.~ Defined composition of solid fuel other than nominal "coke"

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}
507  DF  .~.~.~.~ Melting Iron(Fe) or treating molten Iron {12}
571  DF  .~.~.~.~.~ Melting solid Iron(Fe) {4}
573  DF  .~.~.~.~.~.~ In shaft furnace (e.g., cupola, etc.) {6}
577.~.~.~.~.~.~.~ Defined composition of solid fuel other than nominal "coke"

DEFINITION

Classification: 75/577

Defined composition of solid fuel other than nominal "coke":

(under subclass 573) Process wherein the shaft furnace employs a solid fuel of defined composition other than nominal "coke".

(1) Note. Any definition of the solid, carbonaceous fuel beyond mere nominal "coke" will be sufficient to classify a patent herein, such as defined particle size, strength of coke, anthracite coal, etc.