US PATENT SUBCLASS 110 / 261
.~ Powdered solid fuel


Current as of: June, 1999
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110 /   HD   FURNACES

260  DF  INCLUDING FLUID FUEL BURNER {1}
261.~ Powdered solid fuel {1}
262  DF  .~.~> Alternate fuel


DEFINITION

Classification: 110/261

Powdered solid fuel:

(under subclass 260) Apparatus capable of burning pulverized solid fuel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104, for a subcombination blower-type fuel feeder.

233, for furnace structure combined with solid fuel pulverizing means.

263+, for a pulverized fuel furnace adapted to burn only solid pulverized fuel.

347, for process of pulverized fuel combustion.

SEE OR SEARCH CLASS

60, Power Plants, 39.461, for a power plant using combustion products as a motive fluid adapted to use powdered fuel.

148, Metal Treatment,

9+, for fluid fuel metal cutting apparatus provided with means to feed adjuvant powder.

239, Fluid Sprinkling, Spraying, and Diffusing, especially

79+, and 336 for a fluid distributor, per se, which may include means to mix a plurality of fluents, one of which may be a fluent solid; see search note to Class 239 in the Class 431 class definition for the line between those classes.

241, Solid Material Comminution or Disintegration, appropriate subclass for comminuting or disintegrating apparatus, per se, or combined with heating means where no chemical change to the heated material occurs.

431, Combustion,

173, for fluid fuel burner provided in a combustion furnace wherein the fuel is fed into a circular chamber substantially tangentially to the wall of the chamber.