Self-controlled microwave oven

Details Self-controlled microwave oven Self-controlled microwave oven

1980-12-10

1983-04-26

Reynolds, B. A.

Electric heating

Metal heating

Of cylinders

219 1055E, 219 1055R, 340592, 99421TP, 374117, 374155, H05B 668, G01K 542

Patent

active

043814395

ABSTRACT:
A microwave oven is provided according to which food is cooked while a temperature sensor is inserted in the food and the heating of the food is interrupted in response to an output signal of the temperature sensor. The temperature sensor comprises a hollow skewer, a bellows which is attached to the skewer and in which is sealed a liquid of high coefficient of thermal expansion, and a sound generating body of a plate spring for generating a sound when the hollow skewer is heated by the food, the liquid is expanded, the bellows is stretched, and the force generated thereby overcomes the biasing force. The microwave oven stops heating and cooking when a sound is generated.

REFERENCES:
patent: 3435682 (1969-04-01), Linke et al.
patent: 4081645 (1978-03-01), Javes et al.
patent: 4083250 (1978-04-01), Goff et al.
patent: 4088863 (1978-05-01), Jellies
patent: 4197741 (1980-04-01), Morrow, Jr.
patent: 4230731 (1980-10-01), Tyler

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