Patents by Inventor Tomas Eklund

Tomas Eklund 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: 6805317
    Abstract: A device is provided for winding paper in which the paper web running is supported by a reel drum and wound onto exchangeable reel shafts in contact with the reel drum in order to form rolls of paper. The device applies a heated adhesive agent on the web and/or on the reel shaft onto which the web is to be wound. A spray rack is mounted on the stand of the reel-up, upstream of the reel drum and extending transversely to the machine direction, or alternatively, is mounted in various other locations of the reel-up. A hopper with a heater heats the heated adhesive agent to temporarily lower its viscosity and stickiness for smooth and even spraying. A series of nozzles are mounted on the rack spaced across the width of the web to spread spray jets of liquid containing said heated adhesive onto the web and/or the reel shaft. The adhesive area thus is disposed between the web and the empty reel shaft so as to facilitate initiating the winding process.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 19, 2004
    Assignee: Valmet-Karlstad AB
    Inventors: Tommy Göran Andersson, Tomas Eklund, Johan Rågård, Hans G. Johansson
  • Patent number: 6325896
    Abstract: An apparatus for transferring a fast-running, ready-dried fibrous web from a first location to another with minimal undesirable motion is described. The apparatus includes an air foil defining a web support surface which extends substantially continuously from a first processing location to a second processing location, and includes at least two air supply channels extending substantially perpendicular to the direction of web travel across the air foil for providing flows of pressurized air between the foil and the web being, processed in the general direction of web travel. In this way, a layer of reduced static pressure is provided which stabilizes the web against undesirable motion, while the build up of dust is minimized.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: December 4, 2001
    Assignee: Valmet-Karlstad AB
    Inventors: Lars-Magnus Hultcrantz, Å. Tomas Eklund, Robert D. Olsson
  • Patent number: 6045085
    Abstract: A device is provided in a reel-up in a paper machine in which paper is produced in a web running in the reel-up and supported by a surface winding drum and wound onto exchangeable reeling drums in contact with the surface winding drum in order to form reels of paper. The device applies an adhesive agent on the web when changing full-width reels and in the event of web ruptures in the reel-up. A screen is mounted on the stand of the reel-up, upstream of the surface winding drum, and extending transversely to the machine direction. A spray rack, supported by the screen, extends transversely to the web across its entire width and comprises a plurality of nozzles distributed uniformly across the web to spread spray jets of liquid containing said adhesive agent onto the web to form a coherent adhesive area perpendicular to the machine direction. The adhesive area is brought into contact with an empty reeling drum or an already commenced reel of paper.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: April 4, 2000
    Assignee: Valmet-Karlstad AB
    Inventors: Tommy Goran Andersson, .ANG.ke Tomas Eklund, Rolf Gunnar Lind, Tord Olof Sixten Svanqvist