US PATENT SUBCLASS 122 / 185
.~.~.~.~ Loop


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

135.1  DF  FLUE {4}
155.1  DF  .~ Vertical {16}
*  DD  .~.~ Standpipe {1}
*  DD  .~.~.~ Water tube {3}
185.~.~.~.~ Loop


DEFINITION

Classification: 122/185

(under subclass 155) Devices having a vertical stand pipe, with looped water tubes located within the flue.

SEE OR SEARCH THIS CLASS, SUBCLASS:

215+, for similar art in sectional boilers.

244+, and 281, for structure of stand pipe and water tubes.