US PATENT SUBCLASS 431 / 182
.~.~ Duct with air whirling means surrounds disperser

Current as of: June, 1999
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431 /   HD   COMBUSTION

159  DF  FUEL DISPERSER INSTALLED IN FURNACE {10}
181  DF  .~ Plural feed means extending to common wall opening of furnace {4}
182.~.~ Duct with air whirling means surrounds disperser {1}
183  DF  .~.~.~> Row of stationary blades coaxial with disperser whirls air {1}

DEFINITION

Classification: 431/182

(under subclass 181) Apparatus including an air conduit surrounding a fuel disperser and having means to direct its discharge to form spinning stream of air surrounding the dispersed fuel.

SEE OR SEARCH CLASS

239, Fluid Sprinkling, Spraying, and Diffusing

403+, for a fluid discharger of general utility whirling one fluid prior to or at the point of addition of a second fluid.