US PATENT SUBCLASS 431 / 237
.~.~ Main fuel line branch feeds auxiliary burner

Current as of: June, 1999
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431 /   HD   COMBUSTION

207  DF  HEATED LINE SECTION FEEDS FLAME HOLDER {19}
236  DF  .~ Section heated by auxiliary burner {1}
237.~.~ Main fuel line branch feeds auxiliary burner

DEFINITION

Classification: 431/237

(under subclass 236) Apparatus including a line feeding the heat absorbing section and a branch line connected ahead of the heated section supplying the burner which heats the section.