Method of controlling a microwave oven having a vertically movab

Details Method of controlling a microwave oven having a vertically movab Method of controlling a microwave oven having a vertically movab

1997-02-21

1998-11-03

Leung, Philip H.

Electric heating

Microwave heating

With control system

219685, 219704, 219753, 219762, 99325, H05B 668, H05B 678

Patent

active

058312536

ABSTRACT:
A microwave oven wherein at least a microwave cooking mode and an electric resistance heater cooking mode can be selected by a user. A tray for supporting foodstuff can be raised and lowered and rotated about a vertical axis. A weight measuring mechanism determines the weight of foodstuff on the tray. During a cooking sequence, an operator selects a cooking mode, and the weight of foodstuff is measured. A controller determines a desired cooking elevation as a function of the cooking mode and weight of the foodstuff. A rotation mechanism begins to rotate the tray, and then the rotating tray is raised to the desired elevation, whereupon a cooking operation is performed while the tray is rotated at the desired elevation. At the end of the cooking operation, the tray is lowered to its initial position while still being rotated.

REFERENCES:
patent: 4615405 (1986-10-01), Morino et al.
patent: 4831239 (1989-05-01), Ueda
patent: 5360965 (1994-11-01), Ishii et al.
patent: 5362946 (1994-11-01), Matsushima
patent: 5478987 (1995-12-01), Morita

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