Patents by Inventor Goran Nohlgren

Goran Nohlgren 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: 6531418
    Abstract: Papermachine clothing comprises a base cloth consisting of a layer of woven fabric and/or a layer of thermoplastics material in mesh form. A batt fiber layer containing a non woven array of yarns extending in the intended machine direction of the papermachine clothing.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: March 11, 2003
    Assignee: Voith Fabrics Heidenheim GmbH & Co. KG
    Inventors: Per-Ola Lidar, Goran Nohlgren, Jorgen Johansson
  • Patent number: 5360660
    Abstract: In a woven fabric fourdrinier forming belt (1) for a cellulose drying machine, the majority of the longitudinal wires in the weave are made from polyamide. To achieve that the finished belt has an elongation of at most 5% from loose, dry belt to tensioned wet belt, the longitudinal threads are made from a polyamide where the radio between the number of methylene groups and amide groups has a quotient of at least 7. The belt is round woven to a weaving pattern where the longitudinal threads (2) extend in two or more layers. In addition, the belt is stabilized by heating, pressing and stretching such as to obtain a ratio between knuckle height, measured on the inside of the threads, and total belt thickness has a quotient of at most 0.15 for all longitudinal threads (2).The belt has good wear resistance and low extensibility, and is suitable for cellulose driers having limited streteching potential for the belt.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: November 1, 1994
    Assignee: Scandiafelt AB
    Inventor: Goran Nohlgren
  • Patent number: 4743482
    Abstract: Drying felts provided with a seam in order to facilitate mounting in a paper machine and press felts with such a seam in order to prevent the paper web from being marked by the seam have a wadding flap covering the seam as a continuation of the wadding layer which is fastened to the felt. The wadding flap is worn in different ways when the felt is used in a paper machine and its firmness limits the effective lifetime of the felt and marking in the web occurs due to the wearing of the wadding flap and in order to decrease this wear and to obtain a better felt and a safer production of paper, the protective flap includes at least one layer (6) of wadding having the fibers, yarns or filaments thereof mainly oriented longitudinally in the moving direction of the felt in the machine.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: May 10, 1988
    Inventors: Jorgen Johansson, Goran Nohlgren, Erik Nyholm