Dielectric conditioning

Details Dielectric conditioning Dielectric conditioning

1981-10-13

1983-09-27

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 48, 219 1041, 219 1073, 219 1081, F26B 334, F26B 2308

Patent

active

044060700

ABSTRACT:
There is disclosed in the present application a method and apparatus for treating variable batches of moist dielectric materials by the application of radio frequency energy which reduces the moisture content. According to the present method and by the use of the present apparatus, full power or another pre-determined power level from a radio frequency power source is maintained on the load by an electro-mechanical adjusting device which incrementally reduces the coupling between the source and the load until the boiling point of water is reached. After the boiling point is reached the coupling is incrementally increased to reach a pre-determined moisture content in the material being treated. There is included in the present apparatus, means for counting the number of discrete coupling adjustments in both directions. The difference between these two counts is utilized to select the final average moisture content of the batch and for terminating the treatment cycle when the load has reached the selected average moisture content.

REFERENCES:
patent: 3387378 (1968-06-01), Newsom
patent: 3878619 (1975-04-01), Hodgett et al.

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