Patents by Inventor Stefan Jakobsson

Stefan Jakobsson 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: 5947211
    Abstract: A vibration-damped, machine driven tool includes a machine housing, a drive mechanism housed in the housing and operable to drive a tool projecting out from the housing, a carrier device which forms a cradle in which the machine housing is suspended, and a vibration damper coupling the carrier device to the machine housing. The machine housing and the tool are subjectable to an appropriately directed tool-feeding force via the carrier device so as to cause the tool to work on an outer workpiece. When the tool is at work, the drive mechanism generates vibrations. In order to reduce the vibrations, the vibration damper includes at least two pairs of leaf spring bridges which are fixedly mounted in abutment with the machine housing and with the cradle formed by the carrier device, and which are mutually spaced apart in a longitudinal direction of the cradle.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: September 7, 1999
    Assignee: Atlas Copco Berema Aktiebolag
    Inventor: Stefan Jakobsson
  • Patent number: 5854356
    Abstract: The invention relates to a polymer for release films of surfaces containing pressure-sensitive adhesives. The polymer includes a reactive polyolefin and a reactive release substance, which are chemically bonded together as a result of being compounded in a molten state. The invention also relates to a release film for surfaces containing pressure-sensitive adhesives.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: December 29, 1998
    Assignee: Neste Oy
    Inventors: Christer Bergstrom, Stefan Jakobsson, Marja-Leena Markkula, Ake Jafs, Inari Seppa