US PATENT SUBCLASS 122 / 80
.~.~ Subjacent flue

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

44.1  DF  FIRE TUBE {11}
51  DF  .~ Horizontal {22}
80.~.~ Subjacent flue

DEFINITION

Classification: 122/80

(under subclass 51) Devices having one or more cylindrical sections, provided with large flues located below the main boiler and in communication therewith. The large flues generally inclose the fuel grate and serve as a firebox. At the rear of the large flues there may or may not be small fire tubes in alinement therewith.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50, and 241, for analogous art.