US PATENT SUBCLASS 122 / 461
.~.~.~ Superheater

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

459  DF  STEAM TREATMENT {7}
*  DD  .~ Fire tube boiler {3}
*  DD  .~.~ Horizontal {1}
461.~.~.~ Superheater {3}
*  DD  .~.~.~.~> In fire tube {1}
*  DD  .~.~.~.~> Interior steam space {1}
*  DD  .~.~.~.~> Smoke box {2}

DEFINITION

Classification: 122/461

(under subclass 459) Subject matter comprising steam superheaters in combination with horizontal fire tube boilers or flue boilers of a miscellaneous character.

SEE OR SEARCH THIS CLASS, SUBCLASS:

469, and 481, for superheaters related to fireboxes.