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:
Oct. 17, 1995
Filed:
Dec. 29, 1994
Chul H Kwon, Kyungsangnam-Do, KR;
Goldstar Co., Ltd., , KR;
Abstract
A method of preventing a no-load operation of a microwave oven. If a resistance of a gas sensor is greater than a first predetermined value, a cooking operation is normally performed. An initial signal value sensed by a temperature sensor is compared with a second predetermined value if the resistance of the gas sensor is smaller than or equal to the first predetermined value. If the initial signal value is greater than the second predetermined value, the initial signal value is compared with a signal value sensed by the temperature sensor after the lapse of a predetermined time period. If the initial signal value is greater than the sensed signal value, the cooking operation is normally performed. If the initial signal value is smaller than or equal to the sensed signal value, the present operation is discriminated as the no-load operation and the cooking operation is then stopped. A difference between the initial signal value and the sensed signal value is obtained if the initial signal value is smaller than or equal to the second predetermined value. The cooking operation is normally performed if the obtained value is smaller than or equal to a third predetermined value. If the obtained value is greater than the third predetermined value, the present operation is discriminated as the no-load operation.