Wave shielding device for microwave oven

Details Wave shielding device for microwave oven Wave shielding device for microwave oven

1990-06-25

1991-12-24

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

174 35GC, H05B 676

Patent

active

050755250

ABSTRACT:
A microwave leakage shielding device for a microwave oven includes a seal plate integrally formed with a slit and having a bent surface disposed at a flange by coupling of the flange and the bent surface of the seal plate for obtaining a first shielding effect, a tuning post member having a certain period based on a TE mode wherein there exists no electric field in the direction of the wave direction for obtaining a second shielding effect, a choke seal disposed in the damping groove for obtaining a third shielding effect, and a capacitive seal formed by coupling of the bent surface of the door frame and the flange for obtaining a fourth shielding effect, whereby the microwave leakage shielding device exhibits an excellent shielding capability and is convenient in assembling with the microwave oven.

REFERENCES:
patent: 4584447 (1986-04-01), Kusunoki et al.
patent: 4659891 (1987-04-01), Yamaguchi et al.
patent: 4689460 (1987-08-01), Ishino et al.
patent: 4700034 (1987-10-01), Lee
patent: 4742201 (1988-05-01), Nakano et al.

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