US PATENT SUBCLASS 431 / 49
.~.~ And an igniting burner for first burner

Current as of: June, 1999
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431 /   HD   COMBUSTION

18  DF  TIMER, PROGRAMMER, RETARDER OR CONDITION RESPONSIVE CONTROL {26}
42  DF  .~ Sensor of first burner controls second burner, e.g., pilot and main, etc. {8}
49.~.~ And an igniting burner for first burner

DEFINITION

Classification: 431/49

(under subclass 42) Apparatus in which there are three burners, the operation of the second and third burners being under the control of a sensing means responsive to a condition of the first burner; said third burner being an igniting means for the first burner.