Electric heating – Metal heating – Of cylinders
Patent
1989-09-08
1990-09-11
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055A, 219 1055M, 99325, 364477, 426234, H05B 668, H05B 678
Patent
active
049565303
ABSTRACT:
A method and apparatus for even and rapid heating, pasteurization or sterilization of food by microwave energy. The products to be heated are passed through an oblong microwave treatment chamber on a continuous conveyor belt. The beginning and end of a container on the conveyor is registered before or during entry into the treatment chamber, and this information is transmitted to a computer. On the basis of this information, the computer switches on and off the input microwave energy of the individual input channels when the containers or packages pass under the input channels, the switch-on and switch-off points being set in relation to the container or package length and the axial aperture center of the input channels. The microwave energy to be input into the product is preset in the computer.
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patent: 4808782 (1989-02-01), Nakagawa et al.
patent: 4839485 (1989-06-01), Koch et al.
Hermann Berstorff Maschinenbau GmbH
Leung Philip H.
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