Apparatus for sensing whether food disposed on a raisable tray o

Details Apparatus for sensing whether food disposed on a raisable tray o Apparatus for sensing whether food disposed on a raisable tray o

1997-02-19

1998-09-22

Leung, Philip H.

Electric heating

Microwave heating

With control system

219685, 219753, 219762, 219518, 99325, H05B 668

Patent

active

058117687

ABSTRACT:
A microwave oven has a cooking chamber in which a tray is provided for supporting food to be cooked. The tray is rotatable and can be raised and lowered. Cooking can be performed by microwaves and/or an electric resistance heater disposed in the cooking chamber. A sensor disposed in the cooking chamber detects a condition wherein food on the rising tray is at a height corresponding to that of the heater. In response to the sensing of such a condition the heater is turned off, a mechanism for raising the tray is also turned off, and a warning is emitted.

REFERENCES:
patent: 4596914 (1986-06-01), Morino
patent: 4833304 (1989-05-01), Ueda
patent: 5373145 (1994-12-01), Endo et al.
patent: 5512736 (1996-04-01), Kang et al.

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