Safety ignition means for burner installations

Details Safety ignition means for burner installations Safety ignition means for burner installations

1977-09-28

1979-04-03

Dority, Jr., Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

Sensor of first burner controls second burner, e.g., pilot...

431 42, 431 51, F23Q 914

Patent

active

041474961

ABSTRACT:
Safety ignition means for burner installations having a first solenoid operated valve for a pilot burner, a second solenoid operated valve for a main burner, and an electric heater for igniting the pilot burner. The first valve has a hold solenoid connected to a power source through a normally closed bimetal switch. The first valve also has a make solenoid connected parallel to the hold solenoid through a flame switch and a second electric heater for the bimetal switch. The second valve has a solenoid connected parallel to the hold solenoid of the first valve through the flame switch. The flame switch is operative in response to flame of the pilot burner to deenergize the second electric heater for the bimetal switch and the make solenoid of the first valve and energize the solenoid of the second valve.

REFERENCES:
patent: 2800176 (1957-07-01), Morrison
patent: 2981324 (1961-04-01), Deziel
patent: 4073611 (1978-02-01), Kaduki et al.

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