Patents by Inventor Thomas Sahlin

Thomas Sahlin 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).

  • Method and a device for controlling the alignment between refining surfaces
    Patent number: 7845583
    Abstract: Methods and apparatus controlling the alignment between refining surfaces of opposite refining discs are disclosed which are relatively rotatable and which are incorporated in a refiner for disintegrating and refining lignocellulose-containing material in a refining gap between the refining surfaces. The disclosed method includes positioning at least three sensors at least three measurement positions, measuring the vibrations at each of the measurement positions during refiner operation, and comparing each of the measured vibrations at each of the measurement positions with each other.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 7, 2010
    Assignee: Metso Paper, Inc.
    Inventors: Peter Svedberg, Hans-Olof Backlund, Thomas Sahlin
  • Method and a Device for Controlling the Alignment Between Refining Surfaces
    Publication number: 20090032630
    Abstract: Methods and apparatus controlling the alignment between refining surfaces of opposite refining discs are disclosed which are relatively rotatable and which are incorporated in a refiner for disintegrating and refining lignocellulose-containing material in a refining gap between the refining surfaces. The disclosed method includes positioning at least three sensors at least three measurement positions, measuring the vibrations at each of the measurement positions during refiner operation, and comparing each of the measured vibrations at each of the measurement positions with each other.
    Type: Application
    Filed: December 5, 2006
    Publication date: February 5, 2009
    Applicant: METSO PAPER, INC.
    Inventors: Peter Svedberg, Hans-Olof Backlund, Thomas Sahlin