End load for microwave ovens

Details End load for microwave ovens End load for microwave ovens

1974-04-30

1976-09-28

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

H05B 906

Patent

active

039833569

ABSTRACT:
An end load for a microwave oven for efficiently attenuating microwave energy escaping from an oven access port. The end load has a circular configuration and consists of an inner cylindrical member and a concentrically mounted, outer conductive member. The members are spaced apart to provide a tuned annular volume through a lossy liquid, such as water, is passed. The inner member is made of a microwave lossy material having a dielectric constant that optimumly matches the energy transfer from air to water and has a wall thickness that is also tuned to trap microwave energy. The outer member is made of a conductive material that provides an inwardly reflective surface for confining the microwave energy.

REFERENCES:
patent: 3365562 (1968-01-01), Jeppson
patent: 3624335 (1971-11-01), Dench
patent: 3665141 (1974-05-01), Schiffmann
patent: 3749874 (1973-07-01), Edgar
patent: 3754111 (1973-08-01), Jurgensen
patent: 3848106 (1974-11-01), Beuggren et al.

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