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| Number | Title | Issue Date |
| 8096064 | Method for drying lumber, method of impregnating lumber with chemicals, and drying apparatus A method for drying lumber in a short time with less use of energy. The method of drying lumber includes: enclosing lumber in a batch container having a pressure release valve; filling fluid into the batch container under pressure; maintaining a temperature and a pr... | 01/17/2012 |
| 7987614 | Restraining device for reducing warp in lumber during drying The present invention relates to an apparatus and processing method for drying lumber, for example two-by-four studs in an environment in a kiln in a manner to avoid warping, including crook, bow, cup and twist. The lumber pieces are stacked in a normal manner with ... | 08/02/2011 |
| 7963048 | Dual path kiln An dual path kiln is provided that includes a kiln having one or more chambers and at least two lumber charge paths adapted to convey lumber through the kiln in opposite directions. ... | 06/21/2011 |
| 7748137 | Wood-drying solar greenhouse A method of drying comprises placing a moist material inside a substantially enclosed solar greenhouse. The greenhouse comprises at least one light transmission roof and/or wall panel that is substantially transparent to solar radiation, but resistant to convective ... | 07/06/2010 |
| 7383642 | Apparatus and method for the treatment and preservation of wood materials An apparatus and method for the treatment and preservation of wooden materials includes depositing wooden materials to be treated into a confined, thermally insulated container and introducing smoke from a charcoal oven into that space to heat that space and treat t... | 06/10/2008 |
| 7337554 | Stability-kerfing of green lumber to obtain improvements in drying and future utilization A technique for end-grain creation is employed for obtaining rapid and uniform drying of lumber while simultaneously reducing warp. The stability-kerfing responsible for the improved drying of the lumber decreases the edgewise bending strength by less than ten perce... | 03/04/2008 |
| 7324904 | Methods for determining dimensional stability of wood products utilizing single and multiple sensor groups Systems and methods are provided for detecting the potential of a wood sample, such as a board, to stay on grade, i.e., resist warp, after it is put into service and/or its moisture has re-equilibrated with the surrounding environment. The systems and methods includ... | 01/29/2008 |
| 7303707 | Processing of ligno-cellulose materials A method of processing lignocellulosic material includes the steps of comminuting the material to a size that it can be processed in a hydrothermal pressure vessel, drying the material in moving air to obtain a specific moisture content, packing the material into th... | 12/04/2007 |
| 7246452 | Method for treating preservative-treated wood There is provided a method for treating preservative-treated wood such that the preservative is substantially prevented from leaching. The treatment comprises drying of the preservative-treated wood until the moisture content of the wood is below a level capable of ... | 07/24/2007 |
| 7178263 | Method of manufacturing incombustible wood Provided is a method of manufacturing incombustible wood that enables maximization of the amount of an incombustion agent used to be impregnated into wood. Further provided is a method of manufacturing incombustible wood that completely satisfies incombustible-wood ... | 02/20/2007 |
| 7146747 | Timber drying kiln A multichamber timber drying kiln in which different conditions are maintained in each chamber and methods of drying timber using such a kiln. In one aspect timber is rapidly heated within a first chamber (2; 202; 207) and then transferred to a further chambe... | 12/12/2006 |
| 7100303 | Apparatus and method for the heat treatment of lignocellulosic material There is provided an apparatus and a method for heat treatment of lignocellulosic material. The apparatus comprises a treatment chamber and devices for circulating and recovering gases from the treatment chamber such as to provide a uniform temperature within the ch... | 09/05/2006 |
| 7089685 | Method of microwave treatment of wood A method of microwave treatment of wood with a moisture content (based on dry weight) of at least 12% for rapid drying and stress relief which includes determining an area of the wood that is not to be treated, selectively subjecting a surface of the wood outside sa... | 08/15/2006 |
| 7043853 | Kiln with process water evaporation system A process and apparatus for drying a stack of lumber, wherein the dry comprises a condensation collection device for collecting liquid in the chamber interior space; and an evaporation system for evaporating collected liquid from the chamber interior space. Process ... | 05/16/2006 |
| 6742278 | Method for increasing the permeability of wood The present invention relates to the treatment of wood, and is particularly concerned with a method for increasing the permeability of wood, especially moist wood. ... | 06/01/2004 |
| 6725566 | Drying plant and method for drying wood The invention relates to drying equipment and can be used in wood and wood treatment industries, etc., whenever parameters and procedures necessary to dry materials such as wood are used. The invention allows the drying process to achieve a higher degree of environm... | 04/27/2004 |
| 6718653 | Method for preventing or controlling the occurrence of stains on wood The present invention refers to a method for treating wood in order to prevent or control the occurrence of stains such as sapwood stains, the method comprising a step of heating green wood in a moisture-saturated environment until the wood core temperature is in a ... | 04/13/2004 |
| 6675495 | Method for drying saw timber and device for implementing said method The invention relates to a process for drying wood, characterized in that it comprises a pressurizing step to place a sealed chamber (1) under a predetermined pressure by injecting or generating saturating steam and maintaining this pressure for a predete... | 01/13/2004 |
| 6667429 | Method for manufacturing modified wood Wood such as spruce, maple, and hornbeam are retained in high pressure steam of pressure 0.2 to 1.6 MPa at 120 to 200° C. for 1 to 60 minutes, and subsequently, cooled and dried to obtain a modified wood having superior acoustic properties and old wood-l... | 12/23/2003 |
| 6640462 | Method of drying wood and a system therefor Disclosed is a method of drying timbers loaded in a drying chamber, which comprises the steps of heating the drying chamber by a heating system up to a temperature of 80 to 100° C., subjecting the timbers to vacuum blowing by connecting the inside of the... | 11/04/2003 |
| 6581300 | Method for drying veneer and corresponding drying device A method and apparatus for drying veneer wherein the feeder upstream of the drying station displaces the veneer at different speeds on the right and left sides of the transport path of the veneer as seen in the direction of transport so as automatically t... | 06/24/2003 |
| 6553688 | Method for producing a piece of timber including heartwood A method for making wood with heartwood has steps of forming a wood log with a heartwood from a tree, pressure treatment to the wood log with the heartwood, drying the wood log and forming the wood log to a desired shape. The pressure treatment process is... | 04/29/2003 |
| 6473994 | Method for drying saw timber and device for implementing said method The invention relates to a process for drying wood, characterized in that it comprises a pressurizing step to place a sealed chamber (1) under a predetermined pressure by injecting or generating saturating steam and maintaining this pressure for a predete... | 11/05/2002 |
| 6393727 | Method for reducing VOC emissions during the manufacture of wood products A system for drying wood particles and a method of operation wherein the wood particles are introduced into a dryer and contacted directly with a combustion system exhaust stream. VOC's emitted from the wood particles during drying are recycled to the com... | 05/28/2002 |
| 6389772 | Universal building unit for building structures A universal building unit comprising a plurality of members connected to each other by at least one adjustable plate. There is also at least one panel connected to the plurality of members. In this case, the plurality of members, the adjustable plate, and... | 05/21/2002 |
| 6374513 | Process for the heat treatment of lignocellulosic material A process for the heat treatment of lignocellulosic material where the material is perheated and dried at a temperature close to the vaporization temperature of water, heated in a reducing atmosphere and cooled by the injection of water vapor.... | 04/23/2002 |
| 6370792 | Structure and methods for introducing heated ari into a kiln chamber A kiln system includes a kiln chamber defining a chamber interior space, a furnace capable of providing heated air, one or more air moving devices capable of circulating air in the chamber interior space along a recirculating flow path, and a plenum posit... | 04/16/2002 |
| 6345450 | Process for treating green wood and for accelerating drying of green wood A process for drying or curing green wood including the heating of green wood in a heating enclosure to a predetermined temperature over about 120 F while maintaining the moisture content of the wood close to the original moisture content of the felled wo... | 02/12/2002 |
| 6286229 | Method and apparatus for treating a board-like material with a gaseous agent The present invention provides a method of treating board-like material with a gaseous treatment agent and an apparatus for implementing the method. According to the method, a gaseous treatment agent is passed through the board-like material being treated... | 09/11/2001 |
| 6219937 | Reheaters for kilns, reheater-like structures, and associated methods Elliptically shaped reheater conduits extend downward into a portion of a flow path that extends through a lower chamber interior space of a kiln chamber. Each of the reheater conduits has opposite ends, defines a length that extends between the opposite ... | 04/24/2001 |
| 6138379 | Solar drying process A drier with a curvalinear chamber having a heat transfer surface at one end and baffles at the other end. A fan is provided to circulate air within the chamber. In the process for drying, the product to be dried is positioned within the chamber and air c... | 10/31/2000 |
| 6014819 | Process for treating green wood A green wood treating process for treating wood in a green stage prior to curing for preventing or minimizing staining of the wood. The process includes the heating of green wood in a heating enclosure (30, 40) within a maximum time period after felling o... | 01/18/2000 |
| 5979074 | Method and device for drying sawn timber at reduced pressure This invention relates to a process and an apparatus to dry cut timber or other hygroscopical plate-shaped or bar-shaped goods in subatmospheric pressure in a vacuum-solid drying chamber, which is equiped with ventilators (fans) effecting crosswise to the... | 11/09/1999 |
| 5970624 | Method of drying wood and method of subjecting wood to impregnative treatment The invention aims to provide a lumber drying method which can dry lumbers in a short period without causing cracks and a lumber impregnation method to permeate processing agents deep into the lumbers at a low cost. The lumber drying method comprises a pr... | 10/26/1999 |
| 5940984 | Method for drying wood The invention relates to a method of drying wood in a drying chamber (1), wherein a drying medium, for instance air, is circulated through a batch of wood (10) placed in the drying chamber (1) in a wood-drying process. The drop in temperature (ƊT) of the... | 08/24/1999 |
| 5901463 | Wood curing method A method for heat-treating wood, including at least one step of maintaining the wood to be treated at a predetermined temperature in a treatment chamber in order to destroy at least partially the hemicellulose of the wood. The method comprises monitoring ... | 05/11/1999 |
| 5899004 | Wood smoking-seasoning method A furnace is set to the floor section where wastes such as wood chips, scrapped wood, or wood pieces are put, flammable wastes such as planer chips, plane chips, bark, branches and leaves, or waste paper are arranged as an ignition material so as to cover... | 05/04/1999 |
| 5836086 | Process for accelerated drying of green wood A process for drying or curing green wood including the heating of green wood in a heating enclosure to a predetermined temperature over about 120° F. while maintaining the moisture content of the wood close to the original moisture content of the felled... | 11/17/1998 |
| 5815945 | Pit membrane-broken wood drying method and apparatus The present invention is intended to artificially break pit membranes in cell membranes of cells constituting wood and then to readily attain dryness of the wood. In view of the fact that one pit or the other pit of pits in the form of a pair is blocked w... | 10/06/1998 |
| 5758434 | Wood drying system A wood drying system to eliminate the discharge of liquid kiln water includes a kiln which is heated to dry a batch of wood, a basin to collect the water driven from the wood, and an evaporator in which the collected water is converted into steam. The ste... | 06/02/1998 |
