Patents by Inventor Kjell Anders Karlsson

Kjell Anders Karlsson 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).

  • Patent number: 8460514
    Abstract: The present invention relates to an industrial fabric, in particular press fabric or transfer belt, for use in a papermaking machine. The industrial fabric includes a porous composite structure, having a batt fiber structure and particulate polymeric material. The batt fiber structure has an upper surface and a lower surface extending parallel to the upper surface and spaced from the upper surface along a thickness direction extending perpendicular to the upper and lower surface. The particulate polymeric material is partly fused together and bonded with fibers extending on at least one of the surfaces of the batt fiber structure and with fibers inside the batt fiber structure such that the polymeric material partly impregnates fibers of the batt structure and partly fills interstices between fibers of the batt structure to form the porous composite structure.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: June 11, 2013
    Assignee: Voith Patent GmbH
    Inventors: Hans Ragvald, Kjell Anders Karlsson, Anders Bertilsson, Pia Dela Nord
  • Publication number: 20100155008
    Abstract: The present invention relates to an industrial fabric, in particular press fabric or transfer belt, for use in a papermaking machine. The industrial fabric includes a porous composite structure, having a batt fiber structure and particulate polymeric material. The batt fiber structure has an upper surface and a lower surface extending parallel to the upper surface and spaced from the upper surface along a thickness direction extending perpendicular to the upper and lower surface. The particulate polymeric material is partly fused together and bonded with fibers extending on at least one of the surfaces of the batt fiber structure and with fibers inside the batt fiber structure such that the polymeric material partly impregnates fibers of the batt structure and partly fills interstices between fibers of the batt structure to form the porous composite structure.
    Type: Application
    Filed: February 3, 2010
    Publication date: June 24, 2010
    Inventors: Hans Ragvald, Kjell Anders Karlsson, Anders Bertilsson, Pia Dela Nord
  • Publication number: 20100133071
    Abstract: A transfer belt for carrying a fibrous web and a papermaking or similar machine. The transfer belt consists of a supporting substrate of a polymer foam and a reinforcement layer of aramid or glass fiber in either fabric or layer foam and a release layer that overlies and is bonded to the supporting substrate. The release layer is formed from a material promoting release of the fibrous web. The release layer may be selected from a variety of materials. The layers each contribute their own function to the operation of the belt to provide superior performance.
    Type: Application
    Filed: October 27, 2009
    Publication date: June 3, 2010
    Inventors: Matthias Schmitt, Klaus Hermann, Kjell Anders Karlsson
  • Patent number: 7674356
    Abstract: A paper machine belt that includes at least one layer having parallel yarns. Additionally, a ratio of a volume of the parallel yarns in the at least one layer to a void volume in the at least layer is greater than 1:1.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 9, 2010
    Assignee: Voith Fabrics Patent GmbH
    Inventors: Kjell Anders Karlsson, Vaeinoe Per-Ola Lidar