Invention Grant
- Patent Title: Induction cooking appliance including temperature sensing of food in inductively heated vessel with immersion-type temperature sensing means
- Patent Title (中): 电感式烹饪器具包括温度感应器在感应加热容器中的温度感测
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Application No.: US3742175DApplication Date: 1971-12-29
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Publication No.: US3742175APublication Date: 1973-06-26
- Inventor: HARNDEN J
- Applicant: GEN ELECTRIC
- Assignee: Gen Electric
- Current Assignee: Gen Electric
- Priority: US21334971 1971-12-29
- Main IPC: A47J27/62
- IPC: A47J27/62 ; H01F38/14 ; H05B6/06 ; H05B6/12 ; H05B5/04
Abstract:
Disclosed in an induction range having a counter with an uninterrupted top or working surface on which a cooking vessel is supported and inductively heated by an induction coil situated beneath the counter. Since only the cooking vessel is inductively heated, rather than the counter, the counter is relatively cool. In order to actually determine the temperature of foodstuff being cooked in the vessel there is provided a temperature sensing unit suitably encapsulated in an immersion-type thermistor unit to which there is attached flexible cable comprising thermistor leads or conductors. The thermistor unit is immersed in the foodstuff in the vessel. The flexible cable extends out of the cooking vessel and is terminated in a portable magnetic coupling device which, when resting on the work surface of the range counter, magnetically couples signals representing temperature correlated changes in the thermistor unit''s impedance to a magnetic receptor device mounted below the range counter. Thus, temperature changes in the immersed thermistor unit are reflected as temperature correlated impedance changes to the magnetic receptor device and these impedance changes, in turn, are effective to help determine the true temperature of the foodstuff being cooked in the vessel.
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