US PATENT SUBCLASS 431 / 314
.~.~ Air annulus leads to flame zone

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


431 /   HD   COMBUSTION

298  DF  FIBROUS WICK TYPE FLAME HOLDER {9}
310  DF  .~ Having air or flame director, air distributor, or windguard {4}
314.~.~ Air annulus leads to flame zone

DEFINITION

Classification: 431/314

(under subclass 310) Apparatus including means forming an air passage surrounding the wick or flame zone of the wick and having a discharge annulus adjacent the flame zone.