Control apparatus for gas burning appliance

Details Control apparatus for gas burning appliance Control apparatus for gas burning appliance

1976-12-08

1978-07-25

Favors, Edward G.

Combustion

Timer, programmer, retarder or condition responsive control

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

431 90, F23Q 912

Patent

active

041026284

ABSTRACT:
A control apparatus for a fanned, gaseous fuel-burning appliance, such as a water boiler for a domestic central heating system; the control apparatus includes electrical circuitry comprising first and second changeover switches each having a normally-closed pair of contacts and a third, normally-open contact, and a third switch; the switches are connected in a particular way to actuate gas valves and the fan of the appliance in a manner which provides improved safety features.

REFERENCES:
patent: 3026867 (1962-03-01), Size
patent: 3045744 (1962-07-01), Tjermlund
patent: 3695811 (1972-10-01), Brandt
patent: 3770364 (1973-11-01), Walbridge

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