US PATENT SUBCLASS 432 / 109
.~.~.~ Axially spaced feed to drum of combustion or reaction material

Current as of: June, 1999
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432 /   HD   HEATING

103  DF  TUMBLER-TYPE ROTARY - DRUM FURNACE {8}
105  DF  .~ Having combustion products generated in or fed to drum {3}
108  DF  .~.~ Work advancing type (e.g., steady flow of work) {3}
109.~.~.~ Axially spaced feed to drum of combustion or reaction material

DEFINITION

Classification: 432/109

(under subclass 108) Apparatus with structure feeding a combustion material or a material that reacts with the work at zones spaced axially along the drum structure.