Electric heating – Metal heating – Of cylinders
Patent
1989-10-06
1990-09-11
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055A, 219 1055B, 99325, 99451, 426243, 426234, H05B 668, H05B 678
Patent
active
049565320
ABSTRACT:
A method and apparatus for even and rapid heating, pasteurization or sterilization of products contained in a package, such as, for example, pharmaceutical products or food, which are conveyed through a microwave treatment chamber on a continuous conveyor belt. In order to heat components of the products having different heat absorption for the purpose of reaching the pasteurization temperature rapidly and evenly, the temperature of the components is recorded by a temperature sensor, and on the basis of this the computer calculates the respective .DELTA.T, taking into account given product parameters and the desired temperature to be reached. When the product passes under the following input aperture, a given microwave energy level is coupled into each specific component, as a result of which an even temperature of all products in the package is achieved very rapidly without overheating of the product.
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Hermann Berstorff Maschinenbau GmbH
Leung Philip H.
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