The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 07, 1998

Filed:

Feb. 13, 1997
Applicant:
Inventors:

Kwang-Keun Kim, Suwon, KR;

Seok-Weon Hong, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ;
U.S. Cl.
CPC ...
219708 ; 219753 ; 219518 ; 99325 ;
Abstract

A microwave oven has a food tray which can be both rotated and elevated. A weight sensing unit senses the weight of the tray and any food thereon, for controlling the operation of a tray elevation/rotation mechanism. The tray is not elevated if the weight of the food is detected to be greater than a predetermined elevation weight, in order to prevent excessive pressure from being applied to the elevation/rotation mechanism and the weight sensing unit. If the weight of the food is detected to be greater than a maximum possible cooking weight, no cooking is performed, and an error signal is displayed.


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