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.
Patent No.:
Date of Patent:
Nov. 13, 1990
Filed:
Aug. 02, 1989
Shigeki Ueda, Yamatokoriyama, JP;
Makoto Mihara, Nara, JP;
Masanobu Inoue, Nara, JP;
Kenzo Ohji, Ikoma, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
There is disclosed herein an automatic heating appliance for controlling heating of an object in response to operation of instruction keys and on the basis of the weight of an object to be heated. The appliance includes therein a heating chamber for housing the object, a heater provided on or in the heating chamber for heating the object placed therein, and a turntable provided in the heating chamber for keeping thereon the object during heating. Also included in the appliance are a weight detector for obtaining first weight data in response to the object being placed on the turntable and a temperature compensator for obtaining a second weight data in response to the object being placed thereon, the temperature compensator substantially having the same temperature characteristic as the weight detector. A control unit of the appliance is responsive to the first and second weight data in order to remove an error component due to variation of the characteristic of the weight detector by variation of temperature in accordance with the result of comparison between the first and second weight data so as to determine a weight resulting from only the object. The control unit controls the heating of the object in accordance with variation of the determined object weight.