US PATENT SUBCLASS 422 / 307
.~ Heat treating vessel with heating means

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

243  DF  PHYSICAL TYPE APPARATUS {8}
307.~ Heat treating vessel with heating means {2}
308  DF  .~.~> Including multiple stages
309  DF  .~.~> Including comminuting, kneading, or surface-wiping means interior or vessel

DEFINITION

Classification: 422/307

Heat treating vessel with heating means:

(under subclass 243) Apparatus comprising container means for treating material at an elevated temperature and means operatively associated with the container for furnishing the elevated temperature.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus,

359+, for canned food processors; and subclasses 403+ for food boilers and fryers.

126, Stoves and Furnaces,

343.5, for a melting furnace; and subclasses 373+ for a heated water vessel.

162, Paper Making and Fiber Liberation, 253+, for fiber digesters (for making paper pulp) combined with a heater.

165, Heat Exchange, appropriate subclasses for a container with heat-exchange means.

219, Electric Heating,

385, for electric heater combined with a container for material to be heated.