US PATENT SUBCLASS 122 / 476
.~.~ Superheater

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


122 /   HD   LIQUID HEATERS AND VAPORIZERS

459  DF  STEAM TREATMENT {7}
*  DD  .~ Water tube boiler {7}
476.~.~ Superheater

DEFINITION

Classification: 122/476

(under subclass 459) Subject matter comprising water tube boilers having superheaters for steam combined with the boiler in the same heating chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

474, for superheaters for water tube boilers of a miscellaneous type, with water tubes over the bridge wall.

477, for water tube boilers having a superheater for steam and a feed water heater.