US PATENT SUBCLASS 122 / 301
.~.~.~ Plural lower transverse drum

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

235.11  DF  WATER TUBE {52}
*  DD  .~ Rearwardly declined {3}
*  DD  .~.~ Plural upper transverse drum {2}
301.~.~.~ Plural lower transverse drum

DEFINITION

Classification: 122/301

(under subclass 235) Devices consisting of rearwardly declined banks of water tubes in communication with a plurality of horizontally and transversely disposed drums, both at the top and at the bottom of the tubes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

352, for analogous structures on vertical water tube boilers.

478, for super heaters having transverse drums.