Automatic temperature and humidity regulation – Furnace controlled – Furnace controlled responsive to combustion products...
Patent
1977-03-23
1978-09-05
Wayner, William E.
Automatic temperature and humidity regulation
Furnace controlled
Furnace controlled responsive to combustion products...
219398, F23N 100
Patent
active
041113586
ABSTRACT:
A control for cooking ovens having bake and broil burners is disclosed which includes a support base, three switches supported by the base which are electrically connected in controlling circuits for the burners, a manually operable selector mechanism for selecting desired oven functions and oven temperature levels, a thermostatic actuator which coacts with first and second of the switches and the selector mechanism to govern burner operation in response to sensed temperature levels, and an oven function control actuator which coacts with a plurality of the switches and the selector mechanism for enabling operation of the selected burners.
The selector mechanism includes an operating member which is supported by the base for rotation about an axis by a control knob or dial. The function control actuator includes a cam member supported for rotation by the operating member and a cam blade supported for rotation by the cam member as well as for tipping or rocking motion by the cam member. The cam member and cam blade are related to each other for lost motion rotation so that the cam blade is rotated by the cam member during a portion of the latter's travel and the cam blade, when rotated, is effective to change the oven function by altering the condition of one switch. A lever member is supported along one face of the cam blade and the lever member is shifted by the cam blade during its tipping motion to change the operational condition of another switch.
REFERENCES:
patent: 2310543 (1943-02-01), Pearce
patent: 2409434 (1946-10-01), Jacobs
patent: 2541314 (1951-02-01), Weber et al.
Ranco Incorporated
Wayner William E.
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