Apparatus and process for treating wood and fibrous materials
OwnerRobert A. Kleinguentherinventor
Life of this patent
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Abstract
Apparatus and process for treating wood and other fibrous materials within a hermetically sealed, heat insulated chamber comprising means for applying a predetermined mechanical pressure to said fibrous materials, means for controlling the conditions within said chamber whereby steam is generated in the center of said fibrous materials, and means for subsequently removing said steam; means are additionally provided for staining, finishing, fireproofing, laminating, forming, shaping, and increasing the density and tensile strength of said fibrous materials.
Claims23
A process for treating wood comprising the steps of
- introducing the wood into a closed chamber,
- applying a continuous mechanical force in the range of 1-150 kilograms/square centimeter to at least one surface of said wood,
- applying a temperature in the range of 70.degree.-200.degree. Centigrade to said wood,
- increasing the atmospheric pressure within said chamber to 2 -45 atmospheres before steam is formed in said wood,
- reducing the atmospheric pressure within said chamber and removing the moisturized air from said chamber,
- applying a vacuum to said wood when the pressure in said chamber is at approximate room pressure, and
- cooling the wood, releasing the vacuum, releasing the mechanical pressure, and removing the wood from the chamber.
A process for treating wood comprising the steps of
- introducing the wood into a closed chamber,
- applying a continuous mechanical force to at least one surface of said wood,
- applying a temperature in the range of 70.degree.-200.degree. Centigrade to said chamber,
- increasing the atmospheric pressure within said chamber to 2-45 atmospheres,
- reducing the atmospheric pressure within said chamber and removing the moisturized air from said chamber,
- applying a vacuum to said wood when the pressure in said chamber is at approximate room pressure, and
- cooling the wood, releasing the vacuum, releasing the mechanical force, and removing the wood from the chamber.
A process for treating wood comprising the steps of
- introducing the wood into a closed chamber,
- applying a continuous mechanical force in the range of 1-150 kilograms/square centimeter to at least one surface of said wood,
- increasing the temperature within said chamber to 70.degree.-200.degree. Centigrade,
- increasing the atmospheric pressure within said chamber to 2-45 atmospheres before steam is formed in said wood,
- reducing the atmospheric pressure within said chamber and introducing a source of dry hot air into said chamber when the temperature within said wood is in the range of 70.degree.-180.degree. Centigrade,
- applying a vacuum in the order of 0.005-80 mm. Hg to the wood in said chamber, and
- cooling the wood, releasing the vacuum, releasing the mechanical force, and removing the wood from the chamber.
A process for treating wood comprising the steps of
- introducing the wood into a closed chamber,
- applying a continuous mechanical pressure in the range of 1-150 kilograms/square centimeter to at least one surface of said wood,
- applying a first source of heat in the range of 70.degree.-200.degree. Centigrade to said wood,
- introducing a second source of heat into said chamber,
- regulating the temperature of said second source of heat to approximately equal said first source of heat,
- increasing the atmospheric pressure within said chamber to 2-45 atmospheres,
- reducing the atmospheric pressure and introducing hot dry air into said chamber when the temperature within said wood is in the range of 70.degree.-180.degree. Centigrade,
- applying a vacuum to the wood whereby low pressure steam is removed from said wood,
- cooling the wood, releasing the vacuum, releasing the mechanical pressure, and removing the wood from the chamber.
Dependencies are inferred from the claim text.