US PATENT SUBCLASS 431 / 242
.~ Housing encloses heated section and flame area

Current as of: June, 1999
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431 /   HD   COMBUSTION

207  DF  HEATED LINE SECTION FEEDS FLAME HOLDER {19}
242.~ Housing encloses heated section and flame area

DEFINITION

Classification: 431/242

(under subclass 207) Apparatus in which a flame area through which the heated section of the feed line passes is defined by a casing forming part of a flame holder assembly and spaced from the heated section.