US PATENT SUBCLASS 431 / 309
.~.~ Having air guide or distributor

Current as of: June, 1999
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431 /   HD   COMBUSTION

298  DF  FIBROUS WICK TYPE FLAME HOLDER {9}
302  DF  .~ Tubular wick having central supporting and air supplying structure {3}
309.~.~ Having air guide or distributor

DEFINITION

Classification: 431/309

(under subclass 302) Apparatus including structure in addition to the interior air passage for directing or distributing air into the flame zone of the wick.

SEE OR SEARCH THIS CLASS, SUBCLASS:

195, for a combustion annulus having air feeding perforations above a fuel distributor, e.g., wick etc.