Electric heating – Metal heating – Of cylinders
Patent
1981-08-03
1989-01-03
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055F, 219 1055R, 99DIG14, 724 96, H05B 680
Patent
active
047958731
ABSTRACT:
A utensil for supporting microwave heatable material in a microwave oven is provided with a microwave responsive illuminator including a light source connected to a suitable antenna for receiving microwave energy and directing it to the light source. The oven has an energy distributor disposed for varying localized field intensities of microwave energy in the oven to promote uniform cooking of the heatable material. When the localized field intensity of the microwave energy adjacent the antenna rises periodically above a predetermined value, the antenna receives sufficient energy to cause illumination of the light source. When the localized field intensity falls below the predetermined value, the antenna receives insufficient energy for maintaining the illumination and the light source is extinguished. Thus, the energy distributor, in addition to promoting uniform cooking of the heatable material, also causes intermittent illumination or flashing of the light source to enhance attractiveness of the utensil. Further, the use of an antenna to receive varying amounts of microwave energy from the oven eliminates the requirement for sophisticated auxiliary circuitry to produce intermittent illumination or flashing of the light source.
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Bowen Robert F.
Freedman George
Teich Wesley W.
Clark William R.
Leung Philip H.
Meaney John T.
Raytheon Company
Sharkansky Richard M.
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