Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1986-04-02
1987-01-27
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 68, 219 1061R, 219 1081, F26B 334
Patent
active
046385711
ABSTRACT:
Enhancement of the conventional nozzle bars in an air flotation, high speed air impingement web dryer by adding an electrode insulatedly mounted on the conductive surface of the nozzle bar which is in proximity to the web and establishing a plurality of radio frequency fringing electric fields to intercept the web and enhance the drying process is disclosed. The R.F. fields are powered by an integral R.F. generator electrically connected between the insulated electrode and the conductive nozzle bar housing. The system permits the beneficial characteristics of dielectric drying to be added to the conventional air impingement web dryer with minimum re-arrangement problems and maximum power profiling versatility. A further circuit characteristic provides for substantially constant dielectric power transfer to the web independent of variations in the nozzle bar to web spacing.
REFERENCES:
patent: 3722105 (1973-03-01), Marteny
patent: 3953701 (1976-04-01), Manwaring
patent: 4218830 (1980-08-01), Grassman
patent: 4257167 (1981-03-01), Grassman
Kaliski Edward J.
Schwartz Larry I.
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