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1.发明公开公开(公告)号：US20240342949A1
公开(公告)日：2024-10-17
申请号：US18637743
申请日：2024-04-17
发明人： Darko PERVAN , Hans PERSSON , Christer LUNDBLAD , Mattias SVENSSON , Jan JACOBSSON , Georg VETTER
摘要： A building panel, such as a floor panel, or wall panel, having a multi-layered substrate including a back side layer comprising lignocellulosic particles and a binder, an intermediate layer including lignocellulosic particles and a binder which is arranged on the back side layer, and a front side layer including lignocellulosic particles and a binder, and which is arranged on the intermediate layer. The back side layer was formed from a first mixture, the intermediate layer was formed from a second mixture and the front side layer was formed from a third mixture. The building panel further has a mechanical locking device arranged along at least one edge portion of the building panel where the mechanical locking device is configured for horizontal and/or vertical locking of similar or essentially identical building panels in an assembled position.
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公开(公告)号：US12059818B1
公开(公告)日：2024-08-13
申请号：US18230420
申请日：2023-08-04
申请人： Zhili Zhang , Mike Liu
发明人： Zhili Zhang , Mike Liu
摘要： In one aspect, a method for manufacturing a composite material for structural applications may include steps of sawing and arranging bamboo woods into bamboo bundles; heating the bamboo bundles; dipping the bamboo bundles in phenolic resin; drying the bamboo bundles; arranging the bamboo bundles with the green surface facing outside and the yellow surface facing inside; and forming bamboo beams with a hot-pressing process.
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公开(公告)号：US20230313454A1
公开(公告)日：2023-10-05
申请号：US18035950
申请日：2021-11-09
申请人： IKEA SUPPLY AG
CPC分类号： D21B1/36 , B09B3/45 , D21B1/021 , D21H11/14 , B27N3/007 , B27N3/18 , B27N3/04 , B27N1/00 , B09B2101/85
摘要： The invention related to an apparatus for recycling of lignocellulosic fibres from a fibreboard comprising compressed lignocellulosic fibres bonded together by a binding agent. The apparatus comprises a transport device arranged within a closed housing, wherein the housing is arranged for steaming pieces of the fibreboard at super-atmospheric pressure to decompress and release the lignocellulosic fibres by hydrating them, as well as hydrolysing the binding agent, and the transport device is arranged for transporting the fibreboard pieces, upon being steamed, from an inlet of the housing, at which the fibreboard pieces are fed to the housing, to an outlet of the housing, at which steamed portions comprising released lignocellulosic fibres exit the housing. Further, the apparatus comprises a steam generator in communication with the housing, whereby the fibreboard pieces may be steamed at super-atmospheric pressure in the housing to provide the steamed portions comprising released lignocellulosic fibres, an inlet pressure lock configured to receive the fibreboard pieces at atmospheric pressure and to deliver them to the housing, via the inlet, at super-atmospheric pressure, and an outlet pressure lock configured to receive steamed portions comprising released lignocellulosic fibres via the outlet and ejecting recycled lignocellulosic fibres during a sudden expansion of super-atmospheric pressure.
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4.发明授权公开(公告)号：US11639011B2
公开(公告)日：2023-05-02
申请号：US15803771
申请日：2017-11-04
发明人： David C. Ritter
摘要： A process for producing a smooth-sided strand-based siding or wood structural panel using a secondary pressing process. The secondary pressing process is performed after the primary process completes pressing and consolidation of the substrate/board. The secondary process applies and cures the overlay after applying a water spray on the hot board immediately out of the primary process press, and before overlay application. The application of the water spray causes the surface of the board to swell and cure. A settling period follows to allow the top surface particles and strands to swell along with absorption and evaporation of the moisture. This is followed by surface sanding to remove the telegraphing and produce a smooth surface, which is then followed by lamination of the overlay(s). The process is completed by post-lamination treatment and coating of the board.
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公开(公告)号：US20230127773A1
公开(公告)日：2023-04-27
申请号：US17776237
申请日：2021-07-09
发明人： Rongfeng HUANG , Yanwei WANG , Enjiu ZHANG , Kai ZHANG , Xinmin QIAN , Fanxu KONG , Xiaoyu HE , Hailong SHAO , Longxiang SUN
摘要： A method for producing an ultra-stable and enhanced solid wood flooring for under-floor heating via surface compression technique includes: subjecting, while subjecting a solid wood to surface compression and enhancement, the solid wood to primary stabilization treatment by controlling a temperature of a hot pressing plate to obtain a compressed enhanced solid wood; putting the compressed enhanced solid wood into a heat treatment tank; and subjecting the compressed enhanced solid wood to secondary stabilization treatment by controlling a pressure and a temperature of steam or air in the heat treatment tank and a treatment time to obtain a finished product. The ultra-stable surface-compressed enhanced solid wood flooring produced by the method features high dimensional stability, low set-recovery after water absorption, and desired moisture and heat resistance.
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公开(公告)号：US11628592B2
公开(公告)日：2023-04-18
申请号：US17404120
申请日：2021-08-17
申请人： Bobak Ha'Eri
发明人： Bobak Ha'Eri
IPC分类号： B27N3/02 , B27N3/04 , B27N3/18 , B29C65/08 , B29C65/82 , B32B37/10 , B32B38/16 , G01N33/46 , B27K5/00
摘要： A filler material is applied to a plurality of wood elements. The plurality of wood elements is bonded into a composite wood product, where the bonding includes delivering ultrasound energy to the plurality of wood elements. The ultrasound energy has a frequency within a frequency range of 10 kHz-20 MHz.
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公开(公告)号：US11590674B2
公开(公告)日：2023-02-28
申请号：US16506645
申请日：2019-07-09
发明人： Hugo Piccin , Nathalie Durand
摘要： A method and processing station for producing a veneer having two parallel opposed faces and including at least one lignocellulosic layer made of lignocellulosic fibers having a grain extending along the opposed faces of the veneer. The processing station carries out the method by applying a compressive force to the veneer along at least one direction extending along the opposed faces of the veneer so as to mechanically compress the lignocellulosic fibers.
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公开(公告)号：US20220143863A1
公开(公告)日：2022-05-12
申请号：US17520692
申请日：2021-11-07
申请人： Michael VAESSEN , Patrick HARF , Ulrich MAIER
发明人： Michael VAESSEN , Patrick HARF , Ulrich MAIER
摘要： Construction board is made by first hot-pressing particles in a continuous belt press to form a longitudinally extending, continuous and hot composite strand that is conveyed downstream from the press. Before substantial cooling of the boards and while it is at a predetermined temperature above ambient temperature, an edge of the strand is profiled into a nonsquare profiled contour. Then the strand is transversely severed to form a succession of boards.
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公开(公告)号：US20220072822A1
公开(公告)日：2022-03-10
申请号：US17419969
申请日：2020-01-17
发明人： Jochem BERNS , Klaus-Peter SCHLETZ , Jochen DAUTER
摘要： The invention relates to a device and a method having a first and a second zone (Z1, Z2) for producing insulating or acoustic panels from a pressed material mat (2) which consists at least partially of lignocellulose particles coated with binders, the first zone (Z1) being designed for heating and/or compressing the pressed material mat, and the second zone (Z2) being designed for curing the pressed material mat with the aid of calibration plates (3), and there being driven circulating screen bands (5a-5f) in contact with the upper and lower pressed material mat surfaces. According to the invention, to increase the production speed, at least four circulating screen bands (5a-5f) are used, at least two of which are in operative contact with the pressed material mat (2) in the region of the first zone (Z1), and at least two of which are in operative contact with the pressed material mat (2) in the region of the second zone (Z2).
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公开(公告)号：US20220001573A1
公开(公告)日：2022-01-06
申请号：US17290003
申请日：2019-11-14
申请人： Campen Machinery A/S
摘要： The invention relates to a former head of the kind which is used for forming, such as dry forming, of a fibrous web, where fibres are supplied to the former head mixed with air via at least one injection inlet. The former head comprising: a) a roller being rotatable in a rotation direction around a rotation axis and comprising: a roller surface surrounding the rotation axis, and a plurality of projections extending outwardly, such as radially outwardly, from the roller surface, b) a screen extending along at least part of the roller surface above the rotation axis, the roller surface and the screen defining therebetween a peripheral gap, and c) the injection inlet, wherein the injection inlet is positioned to conduct the mixture of the fibres and air into the peripheral gap in a delivery direction opposite or substantial opposite to the rotation direction of the roller.
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