US PATENT SUBCLASS 122 / 255
.~.~.~.~.~ 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}
253  DF  .~ Cross {3}
*  DD  .~.~ Over firebox {2}
*  DD  .~.~.~ Longitudinal {1}
*  DD  .~.~.~.~ Header {1}
255.~.~.~.~.~ Drum

DEFINITION

Classification: 122/255

(under subclass 253) Devices in which the tubes are over the firebox, inclined in opposite directions longitudinally of the boiler and each bank of tubes being in communication with headers at each end, which headers are in turn in either direct or indirect communication with one or more drums.