Self-cleaning oven temperature control with multiple redundant o

Details Self-cleaning oven temperature control with multiple redundant o Self-cleaning oven temperature control with multiple redundant o

1987-12-31

1989-08-01

Jones, Larry

Stoves and furnaces

Stoves

Cooking

126 19R, 236 15BB, 219413, 219490, F24C 300

Patent

active

048525448

ABSTRACT:
An electric range having a self-cleaning oven utilizes a digital electronic microprocessor based oven temperature control system having multiple, redundant oven temperature sensing elements. The output signal from a first one of the multiple oven temperature sensing elements disposed in the cavity of the oven is used as a primary sensed bake temperature signal for controlling the temperature of the oven during its BAKE mode of operation and as a redundant or back-up sensed clean temperature signal for safely shutting down the oven during its CLEAN mode of operation in the event that the sensed oven temperature significantly exceeds the top of the clean temperature range. Correspondingly, the output signal of a second oven temperature sensing element is used as the primary sensed clean temperature signal for controlling the operation of the oven during its CLEAN mode of operation and as a redundant or back-up sensed bake temperature signal for safely shutting down the oven in the event that the sensed oven temperature during the BAKE mode of operation significantly exceeds the top of the bake temperature range. Oven temperature sensing proves associated with the above two temperature sensors may be individually mounted in separate housings in the oven cavity or may be mounted in a single sensor housing in the oven cavity where space or mounting considerations are particularly acute.

REFERENCES:
patent: 3194227 (1965-07-01), Beach et al.
patent: 3899656 (1975-08-01), Smith
patent: 3920955 (1975-11-01), Nakata
patent: 3924101 (1975-12-01), Beard

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