Ultrasonic press drying of paperboard

Details Ultrasonic press drying of paperboard Ultrasonic press drying of paperboard

1987-03-02

1988-03-08

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34146, 34 69, 34 70, F26B 2000

Patent

active

047291753

ABSTRACT:
Method and apparatus for applying ultrasonic energy to a continuously moving web of paperboard at the same time it is being press-dried by being subjected to pressure and heat.

REFERENCES:
patent: 3999302 (1976-12-01), Candor

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