Electric heating – Metal heating – Of cylinders
219 1055R, 174 35MS, 174 35GC, H05B 676
A seal on a door for a microwave oven. The seal is a resonant cavity extending along the flange of the oven. The resonant cavity has an offset inlet facing the flange with a dimension less than 2/3 of the distance to the center of the cavity. The cavity is further interrupted at intervals less than 1/2 of the microwave wavelength. A dielectric cover fills the inlet and has projections into the cavity on either side of the inlet.
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Hitachi Heating Appliances Co., Ltd.
Leung Philip H.
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