Method of drying lumber

Details Method of drying lumber Method of drying lumber

1997-05-07

1998-12-29

Bennett, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Vacuum

34212, 34 77, 34284, F26B 1330

Patent

active

058528806

ABSTRACT:
A method for drying wood by placing the wood in a dehydration chamber in which the temperature, humidity and pressure are controlled. Air and or gasses are circulated in the chamber to wick away moisture while the wood remains frozen. Both the internal temperature and the circulating air are kept below freezing during the drying process. Atmospheric pressure is manipulated to enhance drying and may be either increased or reduced. Exposure to the volume of dry air (air with zero percent humidity) varies with the drying process and depends on the species, the quantity of wood to be dried and the initial moisture content of the material.

REFERENCES:
patent: 3309778 (1967-03-01), Erickson
patent: 3939573 (1976-02-01), Berti
patent: 4106215 (1978-08-01), Rosen
patent: 4255870 (1981-03-01), Malmquist
patent: 4893415 (1990-01-01), Moldrup
patent: 5595000 (1997-01-01), Goodwin, III
patent: 5687490 (1997-11-01), Harrison

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