Method for improving qualities of wood

Details Method for improving qualities of wood Method for improving qualities of wood

1991-02-05

1992-04-14

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 1L, 34 165, 34 17, F26B 334

Patent

active

051035758

ABSTRACT:
Wood is preliminary dried until its moisture content is reduced to 20 to 30%, and then treated by radio frequency heating in two stages, i.e., the first stage where the radio frequency heating is carried out at a temperature of 60.degree. to 120.degree. C., and the second stage where the radio frequency heating is carried out at a temperature of not more than 60.degree. C.

REFERENCES:
patent: 2560763 (1951-07-01), Griffith, Jr.
patent: 2567983 (1951-09-01), Wood
patent: 3031767 (1962-05-01), Wood
patent: 3083470 (1963-04-01), Pless
patent: 3456356 (1969-07-01), Malmquist
patent: 3537185 (1970-11-01), Ingram
patent: 3986268 (1976-10-01), Koppelman
patent: 4258240 (1981-03-01), Pless
patent: 4377039 (1983-03-01), Hager
patent: 4466198 (1984-08-01), Doll
patent: 4488361 (1984-12-01), Loof

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