Combustion – Timer – programmer – retarder or condition responsive control – Sensor of first burner controls second burner – e.g. – pilot...
Patent
1997-05-20
1998-10-06
Dority, Carroll B.
Combustion
Timer, programmer, retarder or condition responsive control
Sensor of first burner controls second burner, e.g., pilot...
F23Q 908
Patent
active
058167919
ABSTRACT:
An apparatus for controlling gas supply includes a battery supply, a pilot seat on which are mounted a thermopile, a pilot burner, a spark generator and a detector, a pilot valve, a main burner valve, an auxiliary burner valve, and a control board including a pilot timer control for controlling electric power to the control board from the battery supply, a pilot control circuit controlled by the pilot timer control for controlling electric current supplied to the pilot valve, a main valve control circuit for controlling the main burner valve, an ignitor control circuit connected to the main valve control circuit for controlling the spark generator, a pilot and main valve transfer control connected to the battery supply for switching the battery supply to the thermopile, an auxiliary valve transfer control for controlling the auxiliary burner valve, an auxiliary valve control circuit for controlling the auxiliary valve transfer control, an auxiliary timer connected to the battery supply for controlling electric power from the battery supply to the auxiliary valve control circuit, whereby the apparatus can prolong the service life of the battery and does not require the user to hold the start button for a certain period of time in order to ignite the burner.
REFERENCES:
patent: 4111639 (1978-09-01), Matthews
patent: 5018964 (1991-05-01), Shah
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