US PATENT SUBCLASS 432 / 108
.~.~ Work advancing type (e.g., steady flow of work)

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.~.~ Work advancing type (e.g., steady flow of work) {3}
109  DF  .~.~.~> Axially spaced feed to drum of combustion or reaction material
110  DF  .~.~.~> Structure providing different rates of heating or work movement along axis
111  DF  .~.~.~> Counterflow of work and combustion products

DEFINITION

Classification: 432/108

(under subclass 105) Apparatus having a structural feature providing for continuous movement of the work material from the inlet of the drum toward and through the drum outlet.