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US 4,602,141 AGranted
Device for preventing electromagnetic wave leakage for use in microwave heating apparatus
OwnerYoshiyuki Naito, Michiharu Takahashiinventors
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Abstract
A device for preventing electromagnetic wave leakage from gaps between the body of a microwave heating device and the door thereof. The device is configured using an electromagnetic absorber consisting of a mixture obtained by mixing ferrite powder and carbon powder with a soft binder such as rubber so that the device is easily attached on the opening portion of the heating apparatus body or the surface of the door.
Claims4
A device for preventing electromagnetic wave leakage for use in a microwave heating apparatus comprising:
- (a) a microwave heating apparatus body provided with a door, and
- (b) an electromagnetic wave absorber disposed between said apparatus body and said door, said absorber consisting of a mixture obtained by mixing ferrite powder, carbon powder and a high polymer in the ratio of p:q:1 by weight where p is a value ranging from 2 to 4 and q is a value ranging from 0.5 to 2.
Dependencies are inferred from the claim text.