US PATENT SUBCLASS 202 / 86
.~.~.~ Retort and kiln

Current as of: June, 1999
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202 /   HD   DISTILLATION: APPARATUS

81  DF  APPARATUS {4}
82  DF  .~ Systems {6}
85  DF  .~.~ Thermolytic and autothermic {2}
86.~.~.~ Retort and kiln {1}
87  DF  .~.~.~.~> Retort heated by combustion

DEFINITION

Classification: 202/86

Assemblies of retorts in which material is distilled by externally-applied heat, and chambers or kilns in which material is distilled by combustion or a portion thereof. The retorts may be heated by other means or by the heat carried by the distillate from the kiln.

SEE OR SEARCH CLASS

48, Gas: Heating and Illuminating,

76, 77 and 78, and indented subclasses.

110, Furnaces,

242, for a closed retort for incinerating garbage.

201, Distillation: Processes, Thermolytic,

15+, for a process in which at least a part of the original material is burned.