Process for the drying of wood by use of dielectric energy
OwnerBror O. Hagerinventor
Life of this patent
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Abstract
A process for the drying of wood is disclosed. The drying is carried out by heating the wood in an oil and under vacuum with heating being carried out wholly or partly by use of dielectric energy.
Claims18
A method for the drying of wood which comprises heating wood to be dried in a closed container under reduced pressure in a drying oil, said wood being at least partially heated by means of dielectric energy and said pressure being reduced sufficiently to cause moisture present in the wood to be removed therefrom, thereafter removing said drying oil from contact with the wood upon removal of the desired amoung of moisture from the wood while maintaining the wood under reduced pressure to permit residual oil and moisture to evaporate therefrom, and recovering said wood.
A method for the drying of wood which comprises heating wood to be dried in a closed container under reduced pressure in a heated drying oil, said wood being heated and said pressure being reduced sufficiently to cause moisture present in the wood to be removed therefrom, removing the wood having a reduced moisture content from contact with the dying oil while maintaining the wood under reduced pressure, further heating the wood to remove additional moisture therefrom by use of dielectric energy, and thereafter recovering said wood.
Dependencies are inferred from the claim text.