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. 06, 1984
Filed:
Jul. 15, 1982
Takeshi Tanabe, Higashiosaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A microwave oven is provided with a gas sensor and a heat-sensitive element (i.e. thermistor) within a passageway for outgoing air from the heating chamber. A microcomputer generates a heating stop instruction for a microwave source in response to output signals from the heat-sensitive element and the gas sensor and also in accordance with a stored program in the microcomputer. Based upon the variations with time in the output signal from the gas sensor, the microcomputer decides what kind of foodstuff is being heated and establishes a final level for the gas sensor at the end of microwave heating and a final level for the heat-sensitive element at the end of grill heating. A heating end instruction is issued when both the gas sensor and the heat-sensitive element reach their intended final levels. Furthermore, a compensation value (U) is selected based on the rate of variations in the output from the heat-sensitive element. After the microwave heating has been completed, grill heating is performed for a length of time which is determined by the compensation value (U).