Safety ignition means for burner installations

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

1977-08-08

1979-09-18

Dority, Jr., Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

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

431 51, 431 73, 431 69, F23Q 908

Patent

active

041681410

ABSTRACT:
Safety ignition means for burner installations having a solenoid of a solenoid operated valve connected to a power source through a normally opened relay switch. The relay switch has a hold coil connected to the power source and a make coil connected to the power source through a flame switch which operates, when the flame switch is heated by the flame of the pilot burner, to energize a solenoid of a solenoid operated valve for main burner and de-energize the make coil. A normally closed bimetal switch is connected between a power supply and the safety ignition means and has a heat source connected in series with the make coil. If the pilot burner is not ignited for a predetermined period of time, the heat source heats the bimetal switch so that the bimetal switch is opened to separate the ignition means from the power supply.

REFERENCES:
patent: 2102091 (1937-12-01), Persons
patent: 3644074 (1972-02-01), Cade
patent: 3713766 (1973-01-01), Donnelly et al.
patent: 3902839 (1975-09-01), Matthews
patent: 4025283 (1977-05-01), Ray

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