US PATENT SUBCLASS 48 / 204
.~ Water

Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

197 R  DF  PROCESSES {15}
204.~ Water {4}
205  DF  .~.~> Carbureting
206  DF  .~.~> Continuous
207  DF  .~.~> Down run
208  DF  .~.~> Up-and-down run

DEFINITION

Classification: 48/204

Processes whereby a body of fuel is first heated to incandescence and then steam injected.

SEE OR SEARCH CLASS

201, Distillation: Processes, Thermolytic,

38, for a process of carbonizing coal in the presence of steam.