Electric heating – Microwave heating – With control system
Patent
1995-06-12
1997-01-21
Leung, Philip H.
Electric heating
Microwave heating
With control system
219711, 219685, 219759, 99DIG14, H05B 668
Patent
active
055956734
ABSTRACT:
A microwave oven comprises a microwave radiation source, a microwave-activable bottom heater (4) on which the food is placed, and optionally an IR-radiating top heater, which all can be controlled via the control unit of the oven. Further, the oven comprises one or more sensors for sensing the temperature of the bottom heater (4) and feeding this information back to the control unit. The feedback temperature information makes it possible to impart the desired temperature to the bottom heater (4) by controlling the microwave radiation source and/or the top heater.
REFERENCES:
patent: 4125752 (1978-11-01), Wegener
patent: 4687895 (1987-08-01), Chitre et al.
patent: 4727799 (1988-03-01), Ohshima et al.
patent: 4870235 (1989-09-01), Steers et al.
patent: 4963709 (1990-10-01), Kimrey, Jr.
patent: 5036172 (1991-07-01), Kokkeler et al.
Ekstrom Anders W.
Ohlsson Bo W.
Davis Mark A.
Krefman Stephen D.
Leung Philip H.
Whirlpool Europe B.V.
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