US PATENT SUBCLASS 110 / 251
.~ Including air supply means extending vertically within refuse

Current as of: June, 1999
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110 /   HD   FURNACES

235  DF  REFUSE INCINERATOR {17}
251.~ Including air supply means extending vertically within refuse {1}
252  DF  .~.~> With supplementary burner

DEFINITION

Classification: 110/251

Including air supply means extending vertically within refuse:

(under subclass 235) Apparatus having means extending upwardly within a mass of the refuse to supply air thereto.

SEE OR SEARCH THIS CLASS, SUBCLASS:

297+, for means feeding air to firebox of a solid fuel furnace.