Microwave heating device

Details Microwave heating device Microwave heating device

1987-01-16

1988-07-26

Pellinen, A. D.

Electric heating

Metal heating

Of cylinders

219 1055F, H05B 906

Patent

active

047602287

ABSTRACT:
A microwave heating device for using microwave energy to heat a high polymer material or the like being conveyed under pressure comprises a hollow, cylindrical microwave waveguide closed at one end and having a metallic shell capable of withstanding high internal pressures, a pressure partition made from a dielectric material provided within said waveguide near an open end thereof so as to define a sealed space between itself and the closed end of said waveguide and to define a path for introduction of microwaves between itself and the open end of said waveguide, a solid or liquid dielectric packing material filling said sealed space and thereby forming a packed dielectric region, said packing material having a lower specific inductive capacity than that of the material to be heated, a passage for pressurized conveyance of the material to be heated, said passage running transversely through said waveguide at said packed dielectric region thereof, and a microwave generator for transmitting microwaves into said waveguide, the pressure within said passage is supported by said waveguide, said pressure partition and the closed end of said waveguide.

REFERENCES:
patent: 3594530 (1971-07-01), Wiegmann
patent: 3816689 (1974-06-01), Long
patent: 3848106 (1974-11-01), Berggren
patent: 4100386 (1978-07-01), Bardet

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