US PATENT SUBCLASS 431 / 300
.~ Means forcing air into flame area

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}
300.~ Means forcing air into flame area

DEFINITION

Classification: 431/300

(under subclass 298) Apparatus including apparatus supplying a distinct stream of pressurized air to the combustion area of a flame holding structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

252, for a burner with adjunctive means to extend the flame by air blast or aspiration.