US PATENT SUBCLASS 122 / 404
.~.~.~ Steam injector

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

379  DF  CLEANING {9}
397  DF  .~ Trapped circuit {3}
400  DF  .~.~ Surface exit {4}
404.~.~.~ Steam injector

DEFINITION

Classification: 122/404

(under subclass 400) Devices in which the circulation is aided by means of a steam jet located at some point of the circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

384, for steam jet blow-offs.

402, for this subject matter where the circulation is maintained by a mechanical pump.