Microwave oven with multi-stage choke seal

Details Microwave oven with multi-stage choke seal Microwave oven with multi-stage choke seal

2008-07-22

2008-07-22

Leung, Philip H (Department: 3742)

Electric heating

Microwave heating

Radiation protection

C219S741000, C174S377000, C174S387000

Reexamination Certificate

active

07402784

ABSTRACT:
A microwave cooker comprises a body having a cooking chamber therein, the cooking chamber having one opened side, a microwave source disposed at the body for supplying microwave to the cooking chamber, a door coupled to the body for opening and closing the cooking chamber, and a multi-stage choke seal formed at the door, having different resonant frequencies at a frequency region higher than a central frequency of microwave, and having different LC resonant circuits for preventing the microwave from being leaked between the body and the door.

REFERENCES:
patent: 4313044 (1982-01-01), Staats
patent: 6538241 (2003-03-01), Filipsson
patent: 2003/0141298 (2003-07-01), Lee et al.

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