US PATENT SUBCLASS 431 / 161
.~ Furnace heated feed line section

Current as of: June, 1999
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431 /   HD   COMBUSTION

159  DF  FUEL DISPERSER INSTALLED IN FURNACE {10}
161.~ Furnace heated feed line section {4}
162  DF  .~.~> Distinct sections feeding disparate fluids to furnace
163  DF  .~.~> Section feeds steam to disperser
164  DF  .~.~> Section feeds oxidizer through furnace wall opening spaced from that for disperser {1}
166  DF  .~.~> Section feeds oxidizer to disperser or through disperser furnace wall opening {1}

DEFINITION

Classification: 431/161

(under subclass 159) Apparatus including a feed line section particularly shaped or located to receive heat from combustion within the furnace, and means dispersing the heated feed into the combustion chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11, for processes of heating feed to a burner or combustion chamber.

36+, for automatic control of or by the burner feed supply heating structure.

207+, for a heated line section feeding a flame holder.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers, appropriate subclass for boiler structure wherein only a portion of the heated fluid from the boiler is supplied to a burner or combustion chamber of the boiler. Where the entire heated fluid of the boiler is supplied to the burner or combustion chamber of the boiler, classification is in Class 431. 432, Heating,

178, for a residual work heating furnace in which a combustion feed material is heated by the work chamber wall; and subclasses 179+, for a residual furnace having means outside of the chamber by which combustion feed material recovers heat from combustion gases that have been discharged from the chamber.