Toaster oven with initial temperature compensation and sensor ch

Details Toaster oven with initial temperature compensation and sensor ch Toaster oven with initial temperature compensation and sensor ch

1989-01-06

1990-01-16

Shoop, Jr., William M.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219492, 219494, 99332, 99333, 99338, H05B 102

Patent

active

048945188

ABSTRACT:
An electric oven such as a toaster oven according to this invention includes in addition to a heating chamber, a heater for the heating chamber and a temperature detector for measuring the temperature therein, a control device serving to automatically determine a target temperature on the basis of the initial temperature inside the heating chamber so that a desired degree of heating can be effected independently of the initial temperature inside the heating chamber by switching off the power supply when the detected temperature reaches the target temperature thus set. According to another embodiment of the present invention, minimum and maximum heating times are set such that the control device will additionally serve to continue the heating independently of the measured temperature if the preset minimum heating time has not elapsed from the beginning of the heating and to shut off the power supply independently of the measured temperature if the preset maximum heating time has elapsed, so that the heating can be effected safely and dependably even if the temperature detector malfunctions.

REFERENCES:
patent: 2264611 (1941-12-01), Bemis
patent: 2429736 (1947-10-01), Wales
patent: 4296312 (1981-10-01), Salem
patent: 4345145 (1982-08-01), Norwood
patent: 4382175 (1983-05-01), Huggler
patent: 4481396 (1984-11-01), Matsubayashi et al.
patent: 4626663 (1986-12-01), Tateda

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