US PATENT SUBCLASS 431 / 336
.~.~ Ring structure at pot outlet forms central vertical discharge throat

Current as of: June, 1999
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431 /   HD   COMBUSTION

331  DF  POT TYPE BURNER {3}
333  DF  .~ Having means for continuously feeding fuel {4}
336.~.~ Ring structure at pot outlet forms central vertical discharge throat {1}
337  DF  .~.~.~> Structure includes radial air feed passages discharging at throat

DEFINITION

Classification: 431/336

(under subclass 333) Apparatus including structure at the pot outlet forming a partial cover in the shape of a ring that forms a restricted, centrally located, upwardly facing

passage for the escape of the combustion material from the pot.