F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
327/2.51
F24C 7/02 (2006.01) G05D 23/20 (2006.01) H05B 1/02 (2006.01) H05B 6/68 (2006.01)
Patent
CA 1192619
ABSTRACT OF THE DISCLOSURE Many frozen foods are now sold on the market and also produced by household refrigerators, and most of these frozen foods are eaten after thawing or after cooking under heat subsequent to thawing. The importance of thawing is thus increasing more and more. This invention provides a heating apparatus of simple construction capable of effecti- vely thawing a frozen food to meet the above demand. The heating apparatus of the present invention is based on the fact that the dielectric loss of a frozen food itself varies as the frozen food is progressively heated. In the heating apparatus, a signal wave is directed toward a frozen food, and the variation of the rate of absorption of the signal wave due to the dielectric loss of the food is measured, so as to automatically control the process of heating for thawing on the basis of the result of measurement.
421957
Ishihara Masahiro
Kikuchi Itsuo
Ohkawa Shuji
Taguchi Shunichi
Watanabe Mitsuru
Gowling Lafleur Henderson Llp
Hitachi Heating Appliances Co. Ltd.
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