US PATENT SUBCLASS 122 / 100
.~.~.~.~ Interposed flue

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

44.1  DF  FIRE TUBE {11}
51  DF  .~ Horizontal {22}
90  DF  .~.~ Water firebox {8}
*  DD  .~.~.~ Water tube type {1}
100.~.~.~.~ Interposed flue

DEFINITION

Classification: 122/100

(under subclass 90) Devices of the water tube type constructed wholly or in part of water tubes, with an interposed large flue between the firebox and the fire tubes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64, 94 and 95, for combustion chambers interposed between firebox and fire tubes.