Patents by Inventor Ingo Lehnhoff

Ingo Lehnhoff has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220105539
    Abstract: It is provided a method for producing an abrasion- and water-resistant multilayer panel, in particular an abrasion- and water-resistant flooring panel, including the steps: providing at least one plastic carrier plate, in particular a PVC carrier plate; applying at least one base coat to the surface of the plastic carrier plate; printing the plastic carrier plate by direct printing to form a decorative layer; applying at least one first cover layer to the printed decorative layer; uniformly scattering abrasion-resistant particles onto the at least one cover layer applied to the decorative layer; applying at least one second covering layer to the layer of scattered abrasion-resistant particles; optionally, introducing a structure into the at least second cover layer, applying at least one lacquer layer, and curing the layer structure.
    Type: Application
    Filed: January 9, 2020
    Publication date: April 7, 2022
    Inventors: Ingo Lehnhoff, Norbert Kalwa, Frank Oldorff
  • Publication number: 20220072897
    Abstract: A production line for producing an abrasion-resistant wood-composite panel that has a decorative layer, the production line including a first application device for applying a resin layer to an upper and/or lower side of a core board, a scattering device for scattering abrasion-resistant particles controlled by a light barrier and arranged downstream of the first application device in a direction of processing, a first resin drying device arranged downstream of the first application device and scattering device, a second resin application device for applying a second resin layer to an upper and/or lower side of the core board arranged downstream of the first resin drying device, a second resin drying device arranged downstream of the second application device, and at least one short-cycle press.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 10, 2022
    Inventors: Norbert Kalwa, Ingo Lehnhoff
  • Patent number: 11220130
    Abstract: The disclosure relates to a method for finishing a panel, the method includes a) a relief embossed into the upper side in the form of at least one strip-shaped depression with a depth (T), b) a decorative paper applied to the upper side, c) an overlay paper applied to the decorative paper as an abrasion-resistant layer, d) the lower side provided with a backing layer, e) the structure pressed at a high pressure and temperature, and f) during the pressing, at least one strip-shaped depression again embossed in a second embossing without changing the depth (T). Also, the upper side features a press skin that has a thickness of 0.3 to 0.5 mm, the bulk density of the panel in a top layer is between 950 and 1,000 kg/m3, and an aqueous melamine resin is applied to the upper side as a tempering agent before or after embossing.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 11, 2022
    Assignee: FLOORING TECHNOLOGIES LTD.
    Inventors: Roger Braun, Frank Oldorff, Ingo Lehnhoff, Norbert Kalwa, Rüdiger Klupsch
  • Patent number: 11192398
    Abstract: The invention relates to a method for producing an abrasion-resistant wood material panel that has a decorative layer, including the following steps: applying one first resin layer to the decorative layer on the top and bottom sides of the wood material panel, scattering abrasion-resistant particles onto the resin layer on the top side of the panel; drying the resin layer provided with abrasion-resistant particles onto the first resin layers on the top and bottom sides of the panel in a drying device; applying another resin layer to the dried resin layers on both sides of the panel; drying the second resin layers on both sides of the panel in the drying device; and pressing the layer structure. The invention further relates to a production line for carrying out the method and to a wood material panel that can be produced by means of the method.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: December 7, 2021
    Assignee: Flooring Technologies Ltd.
    Inventors: Norbert Kalwa, Ingo Lehnhoff
  • Patent number: 11156004
    Abstract: The disclosure relates to a method for finishing a supplied building panel made of a wood material, in particular MDF or HDF, with an upper side and a lower side, wherein, in a first embossing step, a relief is embossed at least into the upper side as first strip-shaped depressions with two opposing side walls, a bottom wall connecting said side walls and a depth (T), and subsequently a decorative pattern (3) is printed on the embossed upper side of the building panel, and the decorative pattern is then sealed by applying an abrasion-resistant layer (4). According to the invention, additional depressions extending at an angle (?) transversely to the first depressions are embossed, and the large-format supplied building panel is divided into individual panels by carrying out a saw cut in and along each of the depressions.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: October 26, 2021
    Assignee: FLOORING TECHNOLOGIES LTD
    Inventors: Frank Oldorff, Ingo Lehnhoff, Norbert Kalwa, Rüdiger Klupsch, Thomas Lehmann
  • Publication number: 20210323343
    Abstract: The disclosure relates to a method for finishing a panel, the method includes a) a relief embossed into the upper side in the form of at least one strip-shaped depression with a depth (T), b) a decorative paper applied to the upper side, c) an overlay paper applied to the decorative paper as an abrasion-resistant layer, d) the lower side provided with a backing layer, e) the structure pressed at a high pressure and temperature, and f) during the pressing, at least one strip-shaped depression is again embossed in a second embossing without changing the depth (T). Also, the upper side features a press skin that has a thickness of 0.3 to 0.5 mm, the bulk density of the panel in a top layer is between 950 and 1,000 kg/m3, and an aqueous melamine resin is applied to the upper side as a tempering agent before or after embossing.
    Type: Application
    Filed: June 7, 2019
    Publication date: October 21, 2021
    Inventors: Roger BRAUN, Frank OLDORFF, Ingo LEHNHOFF, Norbert KALWA, Rüdiger KLUPSCH
  • Publication number: 20210245493
    Abstract: The invention relates to a method for online quality control of decorative prints on substrate materials, including similarity comparisons of actual and target images and adjusting decorative prints if deviations of color values are detected. The method may include the steps of: a) producing a hyperspectral digital image of a print decoration; b) calibrating the print decoration via a hyperspectral digital image; c) producing and storing a digital target image of the print decoration; d) creating a first print decoration on a first substrate material; e) producing and storing a digital actual image of the printed decoration on the first substrate material; f) determining color deviations between the digital target image and the digital actual image via a computer program; and g) printing on at least one side of substrate materials so as to form a decorative layer. The invention also relates to a device for carrying out the method.
    Type: Application
    Filed: June 6, 2019
    Publication date: August 12, 2021
    Inventor: Ingo Lehnhoff
  • Publication number: 20210230880
    Abstract: The disclosure relates to a method for finishing a supplied building panel made of a wood material, in particular MDF or HDF, with an upper side and a lower side, wherein, in a first embossing step, a relief is embossed at least into the upper side as first strip-shaped depressions with two opposing side walls, a bottom wall connecting said side walls and a depth (T), and subsequently a decorative pattern (3) is printed on the embossed upper side of the building panel, and the decorative pattern is then sealed by applying an abrasion-resistant layer (4). According to the invention, additional depressions extending at an angle (?) transversely to the first depressions are embossed, and the large-format supplied building panel is divided into individual panels by carrying out a saw cut in and along each of the depressions.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 29, 2021
    Inventors: Frank OLDORFF, Ingo LEHNHOFF, Norbert KALWA, Rüdiger KLUPSCH, Thomas LEHMANN
  • Patent number: 11072087
    Abstract: The present invention relates to a wooden material panel, in particular a wood-plastic composite material, including particles of wood and at least one plastic that is functionalized with at least one organic compound. At least one decorative layer is provided on at least one side of the wooden material panel.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: July 27, 2021
    Assignee: Flooring Technologies Ltd.
    Inventors: Norbert Kalwa, Jens Siems, Ingo Lehnhoff
  • Patent number: 10730202
    Abstract: The invention relates to a method for producing OSB wood material panels, in particular OSB wood material panels having reduced emission of volatile organic compounds (VOCs), including the following steps: a) producing wood strands from suitable woods; b) torrefying at least some of the wood strands; c) glue-coating the torrefied wood strands and non-torrefied wood strands with at least one binder; d) scattering the glue-coated wood strands onto a conveyor belt; and e) pressing the glue-coated wood strands to form a wood material panel. The invention further relates to an OSB wood material panel that can be produced in accordance with said method and to the use of torrefied wood strands to reduce the emission of VOCs from OSB wood material panels.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: August 4, 2020
    Assignee: SWISS KRONO Tec AG
    Inventors: Norbert Kalwa, Ingo Lehnhoff
  • Publication number: 20190315015
    Abstract: The present invention relates to a wooden material panel, in particular a wood-plastic composite material, including particles of wood and at least one plastic that is functionalized with at least one organic compound. At least one decorative layer is provided on at least one side of the wooden material panel.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 17, 2019
    Inventors: Norbert Kalwa, Jens Siems, Ingo Lehnhoff
  • Patent number: 10369721
    Abstract: The present invention relates to a wooden material panel, in particular a wood-plastic composite material, including particles of wood and at least one plastic that is functionalized with at least one organic compound. At least one decorative layer is provided on at least one side of the wooden material panel.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: August 6, 2019
    Assignee: Flooring Technologies Ltd.
    Inventors: Norbert Kalwa, Jens Siems, Ingo Lehnhoff
  • Patent number: 10328602
    Abstract: The disclosure relates to a method for finishing a wood board with an upper face and a lower face. A layer of liquid synthetic resin is first applied at least onto the upper face or the lower face, and at least one paper ply soaked with a synthetic resin is then applied. The structure is then pressed in a press under high pressure and at a high temperature, wherein the synthetic resin melts and is connected to the upper face or the lower face of the wood board. The invention is characterized in that the upper face and/or the lower face is provided while still having a press skin and in an ungrounded state, and the layer is applied so thinly that the liquid synthetic resin is completely drawn into the press skin, the layer is not actively dried, and the paper ply is positioned on the press skin.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: June 25, 2019
    Assignee: FLOORING TECHNOLOGIES LTD.
    Inventors: Ingo Lehnhoff, Frank Oldorff
  • Patent number: 10315410
    Abstract: The present invention relates to a method for producing decorative prints having identical quality on at least two carrier materials comprising the following steps: a) providing at least one print motif; b) converting the at least one print motif into at least one high resolution electronic data set having a resolution of up to 1200 dpi, preferably 1000 dpi, by means of at least one image processing software; c) reducing the resolution of the at least one high resolution electronic data set down to 100 dpi, preferably 60 to 80 dpi, by means of at least one image processing software; d) creating at least one first print décor on at least one first carrier material by using at least one digital printer by means of the at least one resolution reduced electronic data set; e) creating at least one print cylinder for a gravure printing process by using at least one resolution reduced electronic data set, wherein the resolution reduced electronic data set can be identical to or different from the resolution reduced
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: June 11, 2019
    Assignee: Flooring Technologies Ltd.
    Inventor: Ingo Lehnhoff
  • Publication number: 20190160859
    Abstract: The invention relates to a method for producing an abrasion-resistant wood material panel that has a decorative layer, including the following steps: applying one first resin layer to the decorative layer on the top and bottom sides of the wood material panel, scattering abrasion-resistant particles onto the resin layer on the top side of the panel; drying the resin layer provided with abrasion-resistant particles onto the first resin layers on the top and bottom sides of the panel in a drying device; applying another resin layer to the dried resin layers on both sides of the panel; drying the second resin layers on both sides of the panel in the drying device; and pressing the layer structure. The invention further relates to a production line for carrying out the method and to a wood material panel that can be produced by means of the method.
    Type: Application
    Filed: May 4, 2017
    Publication date: May 30, 2019
    Inventors: Norbert Kalwa, Ingo Lehnhoff
  • Publication number: 20180319037
    Abstract: The invention relates to a method for producing OSB wood material panels, in particular OSB wood material panels having reduced emission of volatile organic compounds (VOCs), including the following steps: a) producing wood strands from suitable woods; b) torrefying at least some of the wood strands; c) glue-coating the torrefied wood strands and non-torrefied wood strands with at least one binder; d) scattering the glue-coated wood strands onto a conveyor belt; and e) pressing the glue-coated wood strands to form a wood material panel. The invention further relates to an OSB wood material panel that can be produced in accordance with said method and to the use of torrefied wood strands to reduce the emission of VOCs from OSB wood material panels.
    Type: Application
    Filed: November 3, 2016
    Publication date: November 8, 2018
    Inventors: Norbert Kalwa, Ingo Lehnhoff
  • Publication number: 20180319155
    Abstract: The present invention relates to a method for producing decorative prints having identical quality on at least two carrier materials comprising the following steps: a) providing at least one print motif; b) converting the at least one print motif into at least one high resolution electronic data set having a resolution of up to 1200 dpi, preferably 1000 dpi, by means of at least one image processing software; c) reducing the resolution of the at least one high resolution electronic data set down to 100 dpi, preferably 60 to 80 dpi, by means of at least one image processing software; d) creating at least one first print décor on at least one first carrier material by using at least one digital printer by means of the at least one resolution reduced electronic data set; e) creating at least one print cylinder for a gravure printing process by using at least one resolution reduced electronic data set, wherein the resolution reduced electronic data set can be identical to or different from the resolution reduced
    Type: Application
    Filed: July 18, 2018
    Publication date: November 8, 2018
    Inventor: Ingo Lehnhoff
  • Publication number: 20180272558
    Abstract: The present invention relates to a wooden material panel, in particular a wood-plastic composite material, including particles of wood and at least one plastic that is functionalized with at least one organic compound. At least one decorative layer is provided on at least one side of the wooden material panel.
    Type: Application
    Filed: May 13, 2015
    Publication date: September 27, 2018
    Inventors: Norbert Kalwa, Jens Siems, Ingo Lehnhoff
  • Publication number: 20180243940
    Abstract: The disclosure relates to a method for finishing a wood board with an upper face and a lower face. A layer of liquid synthetic resin is first applied at least onto the upper face or the lower face, and at least one paper ply soaked with a synthetic resin is then applied. The structure is then pressed in a press under high pressure and at a high temperature, wherein the synthetic resin melts and is connected to the upper face or the lower face of the wood board. The invention is characterized in that the upper face and/or the lower face is provided while still having a press skin and in an ungrounded state, and the layer is applied so thinly that the liquid synthetic resin is completely drawn into the press skin, the layer is not actively dried, and the paper ply is positioned on the press skin.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Inventors: Ingo LEHNHOFF, Frank OLDORFF
  • Patent number: 10029452
    Abstract: A method for producing decorative prints having identical quality on at least two carrier materials includes the following steps: providing at least one print motif; converting the at least one print motif into at least one high resolution electronic data set; reducing the resolution of the at least one high resolution electronic data set; creating at least one first print decor on at least one first carrier material by means of the at least one resolution reduced electronic data set; creating at least one print cylinder for a gravure printing process by using at least one resolution reduced electronic data set, with the resolution reduced electronic data set identical to or different from the resolution reduced electronic data set used for the digital printing; and creating at least one second print decor on at least one second carrier material by using the at least one print cylinder.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: July 24, 2018
    Assignee: Flooring Technologies Ltd.
    Inventor: Ingo Lehnhoff