US PATENT SUBCLASS 110 / 264
.~ Having rotary flow means


Current as of: June, 1999
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110 /   HD   FURNACES

263  DF  UTILIZING POWDERED FUEL {3}
264.~ Having rotary flow means


DEFINITION

Classification: 110/264

Having rotary flow means:

(under subclass 263) Apparatus provided with vane or vanelike structure through which the pulverized fuel and air mixture is caused to flow into the combustion chamber thereby producing a rotary flow of the mixture.

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213, for an incinerator or solid fuel furnace provided with a liquid or gaseous fuel swirl inducing after-burner.

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431, Combustion,

173+, for fluid fuel circular combustion furnace structure in which the fuel is fed tangentially into the furnace.