US PATENT SUBCLASS 110 / 213
.~.~.~ Swirl inducing


Current as of: June, 1999
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110 /   HD   FURNACES

203  DF  WITH EXHAUST GAS TREATMENT MEANS {5}
210  DF  .~ Afterburning means {3}
212  DF  .~.~ Liquid or gaseous fueled {1}
213.~.~.~ Swirl inducing


DEFINITION

Classification: 110/213

Swirl inducing:

(under subclass 212) Apparatus wherein the fluid fueled burner is arranged to induce a turbulent or whirling motion to the products of combustion to promote burning of the unburned components.