Stoves and furnaces – Stoves – Cooking
Patent
1975-11-20
1977-01-18
Favors, Edward G.
Stoves and furnaces
Stoves
Cooking
431256, F23Q 712
Patent
active
040033600
ABSTRACT:
An electric ignition system for a gas cooking range that includes a low voltage circuit for energizing one or a plurality of parallel connected electric resistance igniters in response to the operation of a control valve supplying gas to a burner. Each resistance igniter element is connected to the secondary winding of a stepdown voltage transformer in an electrical circuit one side of which is the electrically conductive range body or housing and the second an insulated conductor assembled in the range at the time of its manufacture.
The conductor may be coated with porcelain, an insulation material capable of withstanding the high temperature environment within the range without deterioration and breakdown. Both ends of this electrical circuit are easily accessible permitting ready replacement of the resistance igniter element and transformer. The primary side of the circuit is connected to a suitable supply voltage through a normally open switch operated by the gas supply control valve for the burner. Signal means may also be provided to indicate when the igniters are energized.
REFERENCES:
patent: 2300156 (1942-10-01), Higley
patent: 3405869 (1968-10-01), Graysih et al.
patent: 3477797 (1969-11-01), Zielinski et al.
Adams Harold W.
Favors Edward G.
Robertshaw Controls Company
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