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:
Dec. 27, 1988
Filed:
Jul. 05, 1988
Kenneth I Eke, South Croydon, GB;
Microwave Ovens Limited, Shirley, GB;
Abstract
A microwave oven having a cavity for receiving a food item to be cooked, 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 disposed in a compartment separated from the cavity by a dividing panel. The oven has a thermistor for monitoring the variation of hot air temperature over time and for determining the particular time at which the hot air temperature reaches a predetermined value. When the hot air temperature reaches the predetermined value, a microprocessor: (1) determines the remaining cooking time to complete cooking by referring to an internal program that relates the time of measurement with total cooking time, and (2) determines a maximum hot air temperature to be maintained from the time of measurement to the end of cooking by reference to a second internal program which relates the values of the time of measurement with the maximum desirable hot air temperature.