Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1986-07-21
1988-03-29
Shaw, Clifford C.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219412, 219386, 219405, H05B 102
Patent
active
047345624
ABSTRACT:
An electric toaster oven for use both as a toaster and as an oven, including a heater or heaters for heating an article placed in a baking chamber, a baked condition detector which detects the baked condition of the article through the detection of the heat radiated from the article, a plate forming part of the wall of the baking chamber and having a heat guide opening for transferring the heat radiated from the article therethrough to the baked condition detector, a tubular guide for guiding the heat to the baked condition detector, and a control circuit which controls supplying current to the heater or heaters on the basis of a detection signal provided by the baked condition detector. The baked condition detector includes a pair of thermosensitive elements disposed in different thermal conditions, respectively, and provides a signal corresponding to the difference between the respective temperature-dependent output signals of the thermosensitive elements. The heat guide opening is opened only when the electric toaster oven is used as a toaster, or the baked condition detector is placed opposite to the heat guide opening only when the electric toaster oven is used as a toaster.
REFERENCES:
patent: 2631523 (1953-03-01), Olving
patent: 3015712 (1962-01-01), Dills
patent: 3024344 (1962-03-01), Dills
patent: 3027444 (1962-03-01), Weeks
patent: 3059088 (1962-10-01), Eff
patent: 3604957 (1971-09-01), Satula
patent: 4611930 (1986-09-01), Stein
patent: 4645909 (1987-02-01), Thoben
Amano Kazunori
Kojima Nobuyuki
Sekigawa Yoichi
Yamaguchi Shigeki
Shaw Clifford C.
Toshiba Heating Appliances Co., Ltd.
Walberg Teresa J.
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