Microwave oven with food wrap film detecting function

Details Microwave oven with food wrap film detecting function Microwave oven with food wrap film detecting function

1996-03-29

1997-12-16

Leung, Philip H.

Electric heating

Microwave heating

With control system

219707, 219708, 219719, 99325, H05B 668

Patent

active

056981260

ABSTRACT:
A heating apparatus such as a microwave oven includes a magnetron supplying microwaves into a heating chamber so that food accommodated in it is heated and a microcomputer-based control circuit. The control circuit discriminates the food among three conditions, that is, a first condition in which the food is not wrapped in a wrap film, a second condition in which the food is wrapped in a wrap film, and a third condition belonging neither to the first nor to the second condition. Based on the results of discrimination, the control circuit calculates a remaining heating time.

REFERENCES:
patent: 4350860 (1982-09-01), Ueda
patent: 4484065 (1984-11-01), Ueda
patent: 4864088 (1989-09-01), Hiejima et al.
patent: 4874928 (1989-10-01), Kasai

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