Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1992-01-31
1994-01-18
Reynolds, Bruce A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219398, 219508, A21B 100, F27D 1100, H05B 302
Patent
active
052801578
ABSTRACT:
A power switching arrangement for a self-cleaning oven appliance incorporating a unique arrangement of two double throw relays in the oven power control circuit. The two relays are operatively interconnected to selectively couple the oven bake and broil elements to the three wire power supply to switch the bake element across L1 and L2 and the broil element across L1 and N when operating in the bake mode, and switch the bake element out of the circuit and the broil element across L1 and L2, when operating in the broil mode. The interconnection is accomplished in a manner which prevents both heating elements from being simultaneously energized at full power regardless of the failure mode of the switching circuitry, thereby eliminating the need for a thermal limit switch to guard against excessive temperatures in the oven resulting from worst case switching circuit failures.
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General Electric Company
Houser H. Neil
Jeffery John A.
Reams Radford M.
Reynolds Bruce A.
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