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:
Sep. 13, 1988
Filed:
Jun. 04, 1987
Kenneth I Eke, South Croydon, GB;
Microwave Ovens Limited, Shirley, GB;
Abstract
A microwave oven having a cavity for receiving food items to be cooked, primarily baked goods and frozen foods, a magnetron for delivering microwave power to the cavity, and a forced hot air system, including a fan and an electrical resistance heating element which are both disposed in a compartment separated from the cavity by a dividing panel. The oven has a thermistor for monitoring air temperature drawn from the oven cavity after a predetermined time, between four and eight minutes, from the commencement of cooking. Dependent upon the sensed temperature being below or above a predetermined threshold temperature between 130.degree. C. and 140.degree. C., a microprocessor determines a category for the food item being cooked with a corresponding final cooking temperature to be attained for completion of cooking by referring to an internal program that relates to the particular food item to be cooked. The delivery of hot air and magnetron power are terminated when the corresponding final cooking temperature is sensed by the thermistor.