Fiber Working Or Reorienting Patents (Class 144/361)
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Patent number: 10231544Abstract: A shelf includes a main body with a plurality of support features formed therein. In one embodiment, each of the support features formed in the main body may include a board having an overmolded exterior. The board may have a plurality of apertures formed therethrough. The overmolded exterior extends through the apertures formed in the board. In another embodiment, each of the support features includes a removable board in an elongate recess that is secured in place by a cover. The boards may be wooden and add a desired strength and rigidity to the main body.Type: GrantFiled: April 11, 2017Date of Patent: March 19, 2019Assignee: Creative Plastic Concepts, LLCInventor: Nickolas Reinhart
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Patent number: 8461259Abstract: The invention relates to a binder for producing materials based on wood chips and/or wood fibers. The aim of the invention is to design a binder which is used for producing and gluing materials based on wood chips and/or wood fibers, contains natural protein components, significantly reduces or even eliminates the drawbacks of the prior art, and can be economically produced and used. Said aim is achieved by a binder which is used for materials based on wood chips and/or wood fibers, comprises an aldehyde-based condensation resin and other additives, and is characterized in that the binder comprises a water-soluble reactive additive containing a peptide/amino acid mixture without moieties of water-insoluble and high-viscosity proteins. The invention also relates to a method for producing said binder as well as a molded article.Type: GrantFiled: December 17, 2008Date of Patent: June 11, 2013Assignee: Dynea OyInventors: Hendrikus W. G. van Herwijnen, Wolfgang Heep, Detlef Krug, Andreas Weber, Axel Höhling, Maria Schultze
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Patent number: 7823612Abstract: A jointer system comprises a blade assembly, a base, an infeed table, and a measurement system. The base supports the blade assembly for rotation about a blade axis. The infeed table is movably supported by the base. The measurement system comprises a stop member, a gauge assembly, and a display assembly. The stop member defines a stop plane. The gauge assembly comprises a gauge, a pin member supported by the gauge such that the pin member is in contact with the stop member, and a display assembly. As the infeed table moves relative to the base, the gauge assembly generates a measurement signal indicative of vertical displacement of the infeed table relative to the base. The display assembly generates a display image based on the measurement signal.Type: GrantFiled: August 7, 2007Date of Patent: November 2, 2010Assignee: Grizzly Industrial, Inc.Inventor: Shiraz Balolia
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Patent number: 7395844Abstract: A method of processing a wooden piece taken out from a raw wood into a predetermined three-dimensional shape, includes compressing the wooden piece by applying compressive force thereto in a water vapor atmosphere of higher temperature and higher pressure than atmospheric air; and fracturing at least a portion of the compressed wooden piece by exposing the portion to the atmospheric air so as to cause explosion inside the exposed portion of the wooden piece.Type: GrantFiled: April 25, 2006Date of Patent: July 8, 2008Assignee: Olympus CorporationInventor: Tatsuya Suzuki
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Patent number: 7201193Abstract: A process for treating wood to create a worn appearance. The process involves impacting the surface of the wood with a mixture of garnet particles and glass beads sufficiently to cause the soft rings to wear away at a rate greater than the hard rings.Type: GrantFiled: July 19, 2004Date of Patent: April 10, 2007Assignee: Loveland Screw Machine, Ltd.Inventor: Gary Skendzel
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Patent number: 7004300Abstract: An apparatus for longitudinally orienting pre-glued elongated wood strands for forming OSB panels includes a spreading head with disc rolls that each have discs arranged parallel to one another on a rotatable shaft arranged over a forming belt. The discs of a given disc roll intermesh overlappingly in the interspaces between the discs of the adjacent disc rolls, to form vertical orienting passages between the intermeshing discs. The shaft or the individual discs of at least one of the disc rolls is/are slidably adjustable in the axial direction of the shaft, to adjust the axial width of the orienting passages. In a method of operating the apparatus, the width of the orienting passages is adjusted depending on the dimensions, the dimensional variation or tolerance, and/or the throughput quantity of the supplied strand material. Thereby, the throughput quantity and the longitudinal orienting of the strands can be optimized, depending on the particular strand material.Type: GrantFiled: July 7, 2003Date of Patent: February 28, 2006Assignee: Maschinenfabrik J. Dieffenbacher GmbH & Co.Inventor: Friedrich Bossler
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Patent number: 6817394Abstract: A prismatic wood compression molding method capable of easily producing long-sized lumber usable as pillars or like by compression molding. The method is characterized by comparing the steps of: using a plurality of rigid plate-like bodies such as metal plates to compress an outer face of wood throughout length thereof to compression-mold it into prismatic wood which is polygonal, such as rectangular or hexagonal, in cross section; restraining the plate-like bodies by a restraining jig so as to hold flat surfaces of the prismatic wood in a state in which they are compressed by the plate-like bodies; and applying a heat treatment to the prismatic wood held in the compressed state by the plate-like bodies and the jig so as to permanently fix the shape of the prismatic wood.Type: GrantFiled: May 16, 2002Date of Patent: November 16, 2004Assignees: Japan as represented by Director General of Agency of Shinshu University, Yoshikawa Kensetsu Kabushiki KaishaInventors: Kimiyoshi Kitazawa, Yorikuni Shibuya
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Patent number: 6667429Abstract: 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-like appearance due to a change to a deep color tone. Since the conventional modification methods by chemical treatment using chemicals such as resorcin and formaldehyde are not used, the treatment steps are simple and a modified wood used as a material for musical instruments is obtained at low cost.Type: GrantFiled: August 29, 2002Date of Patent: December 23, 2003Assignee: Yamaha CorporationInventors: Hiroyasu Abe, Junji Fujii
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Publication number: 20030150522Abstract: The object of the invention is to provide a process for producing a woody composite material having strength endurable for use as a structural material, even when using short woody chips of 15 cm or less in length.Type: ApplicationFiled: October 1, 2002Publication date: August 14, 2003Inventors: Toshiyuki Suzuki, Koji Matsumoto
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Patent number: 6553688Abstract: 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 to apply a desired pressure to the wood log to reduce a moisture content of the wood log with the heartwood to an even level. This can avoid the wood log with the heartwood to split, crack or deform during the drying process. The utilization of a tree can be increased, and the process for gain a wood material is simplified.Type: GrantFiled: January 11, 2002Date of Patent: April 29, 2003Inventor: Shen-Ba Lee
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Publication number: 20020148532Abstract: A prismatic wood compression molding method capable of easily producing long-sized lumber usable as pillars or like by compression molding. The method is characterized by comparing the steps of: using a plurality of rigid plate-like bodies such as metal plates to compress an outer face of wood throughout length thereof to compression-mold it into prismatic wood which is polygonal, such as rectangular or hexagonal, in cross section; restraining the plate-like bodies by a restrain jig so as to hold flat surfaces of the prismatic wood in a state in which they are compressed by the plate-like bodies; and applying a heat treatment to the prismatic wood held in the compressed state by the plate-like bodies and the jig so as to permanently fix the shape of the prismatic wood.Type: ApplicationFiled: May 16, 2002Publication date: October 17, 2002Inventors: Kimiyoshi Kitazawa, Yorikuni Shibuya
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Patent number: 6425322Abstract: The present invention is for a log made from wastes from forestry and the like material. The invention also is for means and method for the production of such log. The log comprises a sheath which surrounds the compressed forestry wastes of the log. A log according to the invention is produced by that forestry wastes is compressed. The goods are fed to a delimited space which corresponds to the outer shape of the log. In this space the goods are rotated around the lengthwise axis of the log to be during compression after which a holding, moisture releasing sheath is applied during rotation. In the compriming engine the log is formed inside the space which is defined by the compression rolls and the side walls including their movable side wall parts.Type: GrantFiled: March 24, 2000Date of Patent: July 30, 2002Inventors: Gösta Karlsson, Erland Josefsson
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Patent number: 6418990Abstract: The invention relates to a process for greatly increasing the elasticity and bendability of diffuse-porous wood and comprises the following steps: a) supplying a specimen of diffuse-porous wood; and b) isostatically pressing the specimen in a) with a pressure of at least 500 bar. The rigidity is increased once again by immersing the wood specimen in a liquid for up to 2 hours, after which the specimen is dried. This can be utilized when producing shaped products made of diffuse-porous wood.Type: GrantFiled: April 14, 2000Date of Patent: July 16, 2002Inventor: Ove Lindstrom
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Patent number: 6250350Abstract: A method of impregnating wood with liquid puts the wood in a pressure vessel, immerses the wood in the liquid contained in the pressure vessel, pressurizes the liquid to compress the wood while keeping the temperature of the wood at or above the softening point of the wood, and reduces pressure in the pressure vessel so that the wood may cause volume relaxation in the liquid and be impregnated with the liquid.Type: GrantFiled: September 25, 1997Date of Patent: June 26, 2001Assignee: Mywood Kabushiki KaishaInventors: Toshio Muraki, Masahiro Funato, Akiko Hoshino, Tamio Arakawa
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Patent number: 6213010Abstract: A method for treating wood sheets in which individual sheets coming out of a dryer are sent to a continuous press to have them pass from a first temperature to a second temperature lower than the first while holding them under pressure in the passage. In accordance with this method the wood sheet treatment plant comprises a dryer (12,112) at the outlet of which there is a continuous press (13,113) with pressing tables (17,116,117) with controlled temperature to have the individual wood sheets pass from the first temperature to the second temperature while being kept under pressure during the passage.Type: GrantFiled: January 18, 2000Date of Patent: April 10, 2001Inventor: Pierluigi Bolzoni
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Patent number: 6183812Abstract: A method for treatment of one or more wood elements by pressurization comprises the steps embedding the wood elements into a pressure medium, of increasing the pressure in the pressure medium, whereby the wood element is compressed by transmitting the pressure via the pressure medium to the wood elements, and of reducing the pressure in the pressure medium, whereby the wood element is relieved. During the treatment, liquid present in the wood elements is driven out therefrom. The pressure medium comprises a plurality of solid bodies with intermediate spaces. The solid bodies transmit the pressure to the wood elements such that a pressure difference arises between the wood elements and said spaces, which pressure difference drives out the liquid. During the relief phase, the wood elements substantially resume their original shape. The method can also be used for introducing impregnating liquid into the wood elements after the liquid expulsion.Type: GrantFiled: May 27, 1998Date of Patent: February 6, 2001Assignee: Flow Holdings GmbH (SAGL) LLCInventor: Keijo Hellgren
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Patent number: 6152973Abstract: A method and machine for making a new and improved compressed wood fuel pellet. The method comprising the steps of severing a wafer of tree trunk or branch, punching or splitting a small portion along the grain in the wafer, confining each portion across the grain, and then compressing each portion along the grain to form a compressed wood fuel pellet of contiguous wood having a specific gravity of about 1.2-1.4 with a very high efficiency process and machine.Type: GrantFiled: November 3, 1993Date of Patent: November 28, 2000Assignee: Innovation Investment Consultants ABInventor: Dag Romell
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Patent number: 6142198Abstract: Application of vibration and/or compression to kiln-dried wood increases the retention and penetration of preservatives in the wood.Type: GrantFiled: January 21, 1999Date of Patent: November 7, 2000Assignee: Mississippi State UniversityInventors: Terry L. Amburgey, H. Michael Barnes, Michael G. Sanders
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Patent number: 6098679Abstract: The present invention is concerned with a method for obtaining a wood panel, preferably an OSB panel, with significantly reduced thickness swelling properties when exposed to or contacted with moisture or water. The novel dimensionally stable panels are obtained by an alternate vacuum--steam injection method. The method is an after-fabrication, or post-treatment method, and involves one or more cycles of applying a vacuum followed by injection of hot steam in a sealed treatment chamber.Type: GrantFiled: March 17, 1998Date of Patent: August 8, 2000Assignee: Noranda Forest Inc.Inventors: Andrew Go, Wallace S. Pettersen, Alain Laplante
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Patent number: 6083437Abstract: A method for dimensional stabilization treatment is disclosed which enables externally supplied high pressure steam to permeate well into interior of wood or wood composite, and which is thereby capable of constantly imparting high dimensional stability to the wood or wood composite. In the method, wood or wood composite W to be treated is held in a sealed space between two press platens 1a, 1b, and the sealed space is evacuated to establish reduced pressure therein, and thereupon, high pressure steam is supplied to the sealed space. The evacuation may be continued in parallel with the high pressure steam supply.Type: GrantFiled: July 18, 1997Date of Patent: July 4, 2000Assignee: Eidai Co., Ltd.Inventors: Jiro Nishio, Takashi Kimura, Yukari Seto
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Patent number: 6053225Abstract: A wood molding process which comprises treating woods with liquid ammonia, removing said liquid ammonia by evaporation, softening woods with heating and molding them into a desired shape, and treating the molded woods with hot water or steam.Type: GrantFiled: February 8, 1999Date of Patent: April 25, 2000Assignee: Nisshinbo Industries, Inc.Inventors: Yuichi Yanai, Takeo Ishikawa, Kazuhiko Arakawa
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Patent number: 6053224Abstract: A device for pressure treatment of wood elements comprises a pressure chamber for accommodating the wood elements which are to be treated. The pressure chamber also accommodates a pressure medium which surrounds the wood elements on more than one side and, at least before the pressurization, a secondary medium in the form of a fluid. When the pressure medium is pressurized, the wood elements are subjected to a multilateral pressure, whereby they are permanently compressed. Furthermore, the pressure chamber is provided with elements for controlling the quantity of secondary medium which penetrates into the wood during the treatment. These elements may include evacuating valves or casings which surround the wood elements and which are impenetrable to the secondary medium.Type: GrantFiled: January 29, 1998Date of Patent: April 25, 2000Assignee: Asea Brown Boveri ABInventors: Keijo Hellgren, Tom Johannisson
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Patent number: 6047751Abstract: A device for increasing the hardness and intensity of wood which comprises chuck means for holding the wood in a fixed position for processing, a compression-shaped forming die for compressing the wood being processed, an ultrasonic wave-generating device operatively connected with the compression-shaped forming die for applying sound waves to the wood, a forming mold positioned downstream of said compression-shaped forming die for receiving wood therefrom, said forming mold further compressing said wood to remove a portion of the water contained therein, and means for advancing the chuck means containing the wood being processed through the compression-shaped forming die, the ultrasonic wave-generating device and the forming mold.Type: GrantFiled: March 11, 1999Date of Patent: April 11, 2000Inventor: Sun-Tae An
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Patent number: 6039098Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the workType: GrantFiled: December 15, 1998Date of Patent: March 21, 2000Assignee: Cae Electronics Ltd.Inventors: Joe B. Kennedy, Roland Davyduke, James G. Jackson, James B. Hannebauer, William R. Newnes, Brian Stroud, John Sergeant
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Patent number: 5967207Abstract: A method of fabricating bamboo slats into bamboo blinds, wherein bamboo wood is cut into bamboo strips of predetermined length. The bamboo strips are polished, then boiled in a hydrogen peroxide solution for bleaching the strips. The bamboo strips are then spliced into raw bamboo slats of a predetermined thickness. Next, the bamboo slats are subjected to grinding. Subsequently the bamboo slats are primed, and then molded by heat pressing. Holes are then punched in the bamboo slats for insertion of a pull cord, so that the finished bamboo slats can be assembled into a Venetian blind.Type: GrantFiled: November 12, 1998Date of Patent: October 19, 1999Inventor: Feng-Yuan Chen
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Patent number: 5937925Abstract: A method for manufacturing a high strength lumber obtained by artificially compressing a volume of grown natural wood without any destruction of wood tissue, and which is made such that a pine tree is lumbered and exposed to a microwave whereby moisture content is forcibly discharged and cellulose is softened and thereby volume is constricted up to more than 70% by a hydraulic press during a latent heat is still present, so that a high strength lumber is obtained without any destruction of lumber tissue and due to this, a strength and hardness are improved about 30 times of original wood and a tensile strength is increased about up to 10 times of original wood.Type: GrantFiled: May 11, 1998Date of Patent: August 17, 1999Inventor: Young-Hee Lee
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Patent number: 5904194Abstract: A method for producing hard elements from wood provides that at least one wood piece is inserted into a press together with a liquid absorbing material after which an isostatic pressure higher than 800 bar is applied on the wood piece and the liquid absorbing material, the pressure is released and the resulting hard element and the liquid absorbing material, which during the press operation has taken up liquid pressed out from the wood piece, are picked out from the press.Type: GrantFiled: February 4, 1998Date of Patent: May 18, 1999Inventors: Lennart Castwall, Curt Lindhe
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Patent number: 5884682Abstract: A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the workType: GrantFiled: March 21, 1997Date of Patent: March 23, 1999Assignee: CAE Newnes Ltd.Inventors: Joe B. Kennedy, Roland Davyduke, James G. Jackson, James B. Hannebauer, William R. Newnes, Brian Stroud, John Sergeant
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Patent number: 5881786Abstract: The invention is a method for producing flitches prepared from roundwood logs, a method for the manufacture of wood slices or slats from the flitches, and methods of combining the strips into composite lumber products. The methods are based in part on the concept of preparing flitches that retain the sweep or natural longitudinal curvature of the log and slicing or sawing around the sweep to prepare the slats for further conversion into composite lumber products. An opening cut is made in the log essentially following or parallel to the curve of any sweep to divide it into two approximately equal volume pieces. An opposing surfaces is machined parallel to the surface generated by the opening cut to produce a flitch. The flitches are then flattened so that the sweep curvature is made planar. They are then sliced or sawn parallel to the now planar surface to produce slats. The natural surface of the log is preferably retained on the sides of the flitches.Type: GrantFiled: February 20, 1998Date of Patent: March 16, 1999Assignee: Weyerhaeuser CompanyInventors: Ronald C. Wilderman, John W. Kerns, Richard E. Wagner, Alkiviadis G. Dimakis, John S. Selby
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Patent number: 5697414Abstract: Method and apparatus for providing control or elimination of non-microbial enzymatic staining in lumber sapwood. Stain resistant lumber obtained by application of mechanical force.Type: GrantFiled: May 9, 1995Date of Patent: December 16, 1997Assignee: Mississippi State UniversityInventors: Terry L. Amburgey, Shane C. Kitchens
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Patent number: 5685353Abstract: The invention is related to a method and apparatus for compressive shape-drying of wood (1). In the first phase of the method, green wood is compressed to a desired shape simultaneously heating the wood. According to the invention, during the first phase the wood (1) is compressed against gas-permeable surfaces (3, 4) rapidly to a desired and thickness. during the second phase of the compression process, the compression pressure is lowered to a level causing a thickness reduction equal to or greater than the thickness reduction caused by the drying of the wood, and the internal temperature of the wood is lowered with the progress of the compression process.Type: GrantFiled: February 15, 1996Date of Patent: November 11, 1997Assignee: Valtion teknillinen tutkimuskeskusInventors: Pertti Viitaniemi, Paavo Kontinen
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Patent number: 5678618Abstract: A method of producing hard wooden elements by compressing wooden blanks at an isostatic pressure greater than 800 bars, preferably greater than 1000 bars.Type: GrantFiled: May 14, 1996Date of Patent: October 21, 1997Inventors: Curt Lindhe, Lennart Castwall
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Patent number: 5503202Abstract: A sawing process and apparatus cuts a log longitudinally along a radius curve to produce boards. The sawing apparatus includes a continuous flexible band saw blade, provided with teeth at one or both edges. A support exposes a section of saw blade that is curved and stabilized by the use of electromagnetic fields in cooperation with rollers. The saw is then configured to make a cut of a desired thickness in a curve parallel the growth rings of a log, in an arc which minimizes the number of knot defects in the board. With each pass of the log through the saw, or vice-versa, a new arc section is cut, and the log or the saw is rotated and positioned for the next arc section cut. Plural sawing stations may be used in series, and the process may be run bi-directionally when using double-edged saw blades. Once the board sections are cut, they are flattened under pressure in a kiln.Type: GrantFiled: April 24, 1995Date of Patent: April 2, 1996Inventor: William R. Butler
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Patent number: 5355921Abstract: A process for selectively abrading one surface of a veneer knife at a higher rate that the other face and includes a novel way of providing lubricating and cooling fluid to the faces of the knife wherein the majority of the lubricant is provided to the face which abrades slower to further enhance the self sharpening of the knife.Type: GrantFiled: May 21, 1993Date of Patent: October 18, 1994Inventor: Gerald M. Fisher
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Patent number: 5343913Abstract: A wood treating method and apparatus whereby a wood which is thin or bent, such as a soft wood or wood removed during growth or a wood from thinning, is strengthened, straightened and molded in any desired shape, wherein after the wood is heated and softened in a high temperature high pressure atmosphere, mechanical compressive forces are applied to the wood to minimize the voids in the wood; thus, the wood is hardened, strengthened and the bent wood is corrected, making it possible to form the wood in any desired shape without lumbering the same.Type: GrantFiled: May 21, 1993Date of Patent: September 6, 1994Assignees: Hisaka Works Limited, Mitsuhiko TanahashiInventors: Mitsuhiko Tanahashi, Masafumi Inoue, Syuzo Fukada, Chikayoshi Ota, Senji Kimoto
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Patent number: 5334445Abstract: A cellulosic fibrous aggregate formed from sections of cellulosic fibrous material by a process which comprises:a softening stage comprising softening a plurality of sections of cellulosic fibrous material by the action of an aqueous softening agent at elevated temperature, thereby at least partially breaking down the cellulosic cross-linking in the cellulosic fibrous material;a compression stage comprising pressing together the softened sections of cellulosic fibrous material to form a compressed matrix; anda consolidation stage comprising dewatering and consolidating the compressed matrix to form a consolidated matrix, and a process for its preparation comprising the aforementioned softening, compression and consolidation stages.Type: GrantFiled: December 13, 1989Date of Patent: August 2, 1994Assignee: Shell Oil CompanyInventors: Herman P. Ruyter, Anton Hortulanus, Jan Dekker
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Patent number: 5291927Abstract: An apparatus for truing twisted wooden boards by twisting them in an oppoe direction, comprises an upper set of parallel plates and a lower set of parallel plates. A channel is formed between opposing edges of the upper and lower plates. The upper plates are pivotable about an upper pivot axis, and the lower plates are pivotable about a lower axis. Those axes are oriented transversely relative to a longitudinal axis of the channel and are situated at an inlet end of the channel. A pivoting mechanism causes the plates to be displaced vertically relative to one another to twist the channel about its longitudinal axis.Type: GrantFiled: August 21, 1992Date of Patent: March 8, 1994Assignee: Gebruder Linck Maschinenfabrik "Gatterlinck" GmbH & Co. KGInventor: Siegmar Gonner
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Patent number: 5279691Abstract: A process and apparatus for forming a reconsolidated wood product, and a partially rended natural wood bundle therefor, comprises partially rending natural wood to form a plurality of flexible open lattice work webs each of naturally interconnected wood strands which are generally aligned along a common grain direction with a substantial proportion of the strands in each web being substantially discrete but incompletely separated from each other. Each web is of increased width laterally and correspondingly decreased thickness compared to the natural wood but they may vary in dry wood densities. To avoid this the webs are compacted widthwise to substantially uniform dry wood densities and this may involve weighing the webs and measuring their moisture content. The compacted webs are then abutted width-to-width and partially rended natural wood bundles of preselected widths and dry wood densities are cut from the mat.Type: GrantFiled: November 16, 1990Date of Patent: January 18, 1994Assignee: South Australian Timber CorporationInventor: Frederick T. Stickland
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Patent number: 5257655Abstract: A process for treating wood to simulate driftwood or to create a weathered appearance. The process involves impacting the surface of the wood with glass beads sufficiently to cause the soft rings to wear away at a rate greater than the hard rings.Type: GrantFiled: September 22, 1992Date of Patent: November 2, 1993Inventor: Gary Skendzel
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Patent number: 5247975Abstract: A wood treating method and apparatus in which a wood which is thin or bent, such as a soft wood or wood removed during growth or a wood from thinning, is strengthened, straightened and molded in any desired shape, wherein after the wood is heated and softened in a high temperature high pressure atmosphere, mechanical compressive forces are applied to the wood to minimize the voids in the wood; thus, the wood is hardened, strengthened and the bent wood is corrected, making it possible to form the wood in any desired shape without lumbering the same.Type: GrantFiled: August 1, 1991Date of Patent: September 28, 1993Assignees: Hisaka Works Limited, Mitsuhiko TanahashiInventors: Mitsuhiko Tanahashi, Masafumi Inoue, Syuzo Fukada, Chikayoshi Ota, Senji Kimoto
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Patent number: 5211687Abstract: An apparatus and method for producing a hole in an article comprising wood or wood products includes a piercing tool having a punch extending therefrom. One of said piercing tool and article is moved relative to the other such that the piercing tool is positioned in a desired location relative to the article. The punch is propelled outwardly with a sufficient impact load to create a hole in the article and then retracted.Type: GrantFiled: December 4, 1991Date of Patent: May 18, 1993Assignee: Herman Miller, Inc.Inventor: Larry L. Loser
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Patent number: 5190088Abstract: A heated wood sample (46) having a water content exceeding 20 percent is compressed axially in the direction of the grain or fibres of the sample in a compression mould (10). Oppositely directed compressive forces are applied not only to the end surfaces of the sample, for example by means of a hydraulic cylinder (18), but also to side surface parts of the sample as frictional forces. The sample may be arranged within a compression chamber which is at least partly defined by longitudinally overlapping side wall parts (30, 37, 47, 48), which are mutually displaceable in the longitudinal direction of the chamber, and these side wall parts may be pressed into frictional engagement with the sample (46) for example by means of an inflatable bag or an inflatable hose section (32, 34), and means may be provided for mutually displacing the side wall parts so as to apply frictional compressive forces to the wood sample.Type: GrantFiled: October 15, 1991Date of Patent: March 2, 1993Assignee: Dansk Teknologisk InstitutInventors: Thomas Thomassen, Jens Ljorring, Ove Hansen
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Patent number: 5067536Abstract: High quality agglomerated structural boards, lumber and other structural members such as I, U, T, L beams or corrugated plates or moldings are produced from engineered long, thin narrow green wood strands. Process, in which the parallel alignment of the strands to each other and their original starting orientation are maintained through their transportation, drying, blending, forming and pressing, preventing their intermingling, twisting, warping and breaking. The application of fungicides, pesticides, fire retarding and other chemicals during the blending process, impregnates or colors the agglomerated structural products throughout their cross section, making the products resistant against rot, insects, fire or aesthetically attractive for architectural applications.Type: GrantFiled: February 7, 1990Date of Patent: November 26, 1991Inventors: Frank T. Liska, Frank F. Liska
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Patent number: 4945959Abstract: A device for planing and/or molding surface textures in wood boards is provided with two planing heads (44,46) arranged one behind the other, the movement of which can be selectively cycled both in the vertical direction and transversely to the feed direction of the wood boards to be planed, thus permitting production of a variety of surface textures in the wood boards being planed.Type: GrantFiled: March 3, 1989Date of Patent: August 7, 1990Assignee: Hubert Josef KochInventor: Marita Biedenbach
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Patent number: 4844134Abstract: An apparatus for creating a rough-sawn texture on all four sides of surfaced lumber has two pair of sleds which carry endless loop chains having roughening teeth projecting outwardly therefrom. The sleds have planar faces with slots extending across them that the roughening teeth project through, and in one pair of sleds the faces are oriented vertically and in the other pair the faces are oriented horizontally. One of the sleds in each pair is fixed on a frame which supports the apparatus and the other sled in each pair is slidably mounted in tracks. Thus the distance between the faces can be adjusted so that they abut the sides of a particular size piece of lumber. The chains are carried on sprockets that are mounted on the sled and are driven by motors so that the roughening teeth move across the piece of lumber being processed.Type: GrantFiled: August 19, 1988Date of Patent: July 4, 1989Assignee: Bur-Mar Industries, Inc.Inventor: Alan C. Martindale
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Patent number: 4732184Abstract: There is disclosed a machine for saw-sizing of lumber and a method for its use. The machine has a frame and a work table surface which supports at least one and, preferably four, bandsaws. The bandsaws are each positioned at an incident angle from 20.degree. to about 80.degree. to the surface of the lumber which is fed through the machine. The lumber is fed from the back side or back edge of the bandsaw saw blades. The machine is specifically designed for a single pass sizing of all four sides of lumber with two vertical bandsaws and two horizontal bandsaws; the horizontal bandsaws are positioned to size the bottom and top surfaces of the lumber while the vertical bandsaws are positioned to size the opposite vertical sides of the lumber. The method comprises passing the lumber through the machine from the back edge of the bandsaw blades to drag the lumber against the bandsaw blades. This results in a rough saw sized texture to the lumber without any significant change in its dimensions.Type: GrantFiled: July 18, 1986Date of Patent: March 22, 1988Inventor: Russell E. Albright
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Patent number: 4712596Abstract: A lumber surfacing machine for roughening the surface of at least one face of a length of lumber. The machine utilizes a driven band saw blade which is maintained by a pair of blade guides at an acute angle to the surface of the lumber to be roughened. Additional lumber surfacing blades comprising circular saws may be used in conjunction with the band saw blade. The circular saws are mounted at a small angle with respect to the surface which they are roughening.Type: GrantFiled: February 5, 1987Date of Patent: December 15, 1987Inventor: Tom McClaran
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Patent number: 4706722Abstract: A lumber incisor comprising a rotatable drum. A plurality of annular incisor rings are mounted on the drum to turn with the drum. Teeth on the periphery of each incisor ring, extend outwardly from a tooth base on the periphery of the incisor rings. An annular spacer ring is positioned between each pair of neighboring incisor rings. An annular cleaning ring surrounds each spacer ring and is freely movable between the neighboring incisor rings. Each of the above annular rings has an inner radius, an outer radius and a ring width equal to the outer radius less the inner radius. The spacer rings have an outer radius less than the outer radius of the incisor rings. The outside diameter of each cleaner ring is at least equal to the incisor ring outside diameter plus a height of one tooth.Type: GrantFiled: July 8, 1986Date of Patent: November 17, 1987Assignee: B.C. Clean Wood Preservers Ltd.Inventor: Ronald W. Silcox
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Patent number: 4649972Abstract: Method and apparatus for crimping a round tenon for furniture manufacture, utilizing a crimping roll cluster consisting of a knurled drive roll and two idler compressing rolls. The apparatus includes means for feeding a wooden workpiece into and out of axial alignment with the crimping roll cluster; means for pressing the wooden workpiece into engagement with the knurled portion of the drive roll; means for rotating the workpiece from one to two revolutions, thus forming flutes into the tenon; and means for discharging the workpiece from the apparatus.Also disclosed is a method and apparatus for fluting a workpiece having tenons on both ends.Type: GrantFiled: November 7, 1985Date of Patent: March 17, 1987Assignee: York Industries, Inc.Inventor: Kenneth Brooks
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Patent number: 4630407Abstract: The finishing machine of the present invention includes a drive assembly for moving a coated object longitudinally across a base at a predetermined speed and a finishing assembly connected to the base to contact at least a portion of the coating as the object moves across the base to raise the temperature of the coating to about its thermoplastic range for a predetermined time and to finish the coating during that time to a desired uniform finish. The finishing assembly includes a revolving brush having nylon bristles impregnated with a suitable abrasive. For moldings, the brush is mounted to a frame which is adjustable above the base to vary the height of the brush above the base and its angle with respect to the base. Edge finishing brushes may also be included on the base for finishing edges of the object as it passes through the machine. The method and apparatus are suitable for small objects, such as moldings, or large objects, such as doors.Type: GrantFiled: March 28, 1986Date of Patent: December 23, 1986Inventor: Lynn R. Rhodes