Patents by Inventor Lars Magnus Persson

Lars Magnus Persson 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 device for tightening joints
    Patent number: 8485273
    Abstract: An electric assembly device for tightening of fastener includes a housing and a rotation. motor which is drivingly connected to an output shaft. The output shaft has a forward portion extending out of the housing, and is adapted to carry a coupling device for releasable coupling with a fastener during tightening, which is to be performed along a first rotation axis. The device is adapted to determine an angular displacement of the housing with respect to the first rotation axis during tightening of the fastener, and to control the rotation speed of the motor during tightening based on the determined angular displacement of the housing.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: July 16, 2013
    Assignee: Atlas Copco Industrial Technique Aktiebolag
    Inventors: Karl Johan Lars Elsmark, Lars Magnus Persson
  • METHOD AND DEVICE FOR TIGHTENING JOINTS
    Publication number: 20110079406
    Abstract: An electric assembly device for tightening of fastener includes a housing and a rotation motor which is drivingly connected to an output shaft. The output shaft has a forward portion extending out of the housing, and is adapted to carry a coupling device for releasable coupling with a fastener during tightening, which is to be performed along a first rotation axis. The device is adapted to determine an angular displacement of the housing with respect to the first rotation axis during tightening of the fastener, and to control the rotation speed of the motor during tightening based on the determined angular displacement of the housing.
    Type: Application
    Filed: May 8, 2009
    Publication date: April 7, 2011
    Applicant: ATLAS COPCO TOOLS AB
    Inventors: Karl Johan Lars Elsmark, Lars Magnus Persson