Implement for preventing leakage of waves from microwave oven

Details Implement for preventing leakage of waves from microwave oven Implement for preventing leakage of waves from microwave oven

1988-11-21

1989-09-19

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055R, 174 35MS, 174 35GC, 252 6251, H05B 676

Patent

active

048683582

ABSTRACT:
There is disclosed an implement for preventing microwaves from leaking from the housing of a microwave oven. The implement is made from a synthetic resin and mounted inside the oven. One example of the implement consists of polymethylpentene molded into a desired shape. Carbon and a softener are dispersed in the polymethylpentene. Further, the polymethylpentene contains a ferrite and/or a powdered metal. Thus, the implement can withstand high-temperature air, whether it is dry or moist. Another example of the implement is intended to eliminate any gap between the housing and the inner surface of the door. This implement is fabricated by forming a synthetic resin layer containing a soft ferrite and a synthetic resin layer containing a hard ferrite in such a way that these two layers are stacked on top of each other, magnetizing the hard ferrite, and forming grooved portions used for separation in the laminated sheet by press work or embossing to obtain plural unit structural portions interconnected by the grooved portions.

REFERENCES:
patent: 2858451 (1958-10-01), Silversher
patent: 2877286 (1959-03-01), Vance et al.
patent: 3437735 (1969-04-01), Schaller, Jr.
patent: 4046983 (1977-09-01), Ishino et al.
patent: 4051341 (1977-09-01), Tanaka et al.
patent: 4081647 (1978-03-01), Torrey
patent: 4602141 (1986-07-01), Naito et al.
patent: 4785148 (1988-11-01), Mayer

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