Patents by Inventor Lars Öhrn

Lars Öhrn 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: 10299438
    Abstract: A forming and wrapping unit and method for forming material into a continuous bar and wrapping the material. The unit including a forming chamber for forming material into a continuous bar, a sheet wrapping device for wrapping the continuous bar, and a controller operating on the sheet wrapping device. The sheet wrapping device and the controller are adapted to be operable independently of a rate of feeding bulk material into the forming chamber. The method includes feeding material to a wrapping position while forming the material, wrapping a sheet around the material such that the sheet at least partly overlaps a previously wrapped portion of the sheet, and transferring the wrapped material from the wrapping position to a storage ready position. The feeding of the material to a wrapping position and wrapping a sheet around the material are separately operable.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: May 28, 2019
    Assignee: TRIOPLAST AB
    Inventors: Lars Öhrn, Mikael Liljegren
  • Publication number: 20130104503
    Abstract: The invention provides a forming and wrapping unit (2) for forming material into a continuous bar (20) and wrapping said material the unit comprising: a forming chamber (6) for forming material into a continuous bar; sheet wrapping means (4) for wrapping said continuous bar; and control means operating on said sheet wrapping means, wherein said sheet wrapping means and said control means are adapted to be operable independently of a rate of feeding bulk material into the forming chamber. The invention also relates to a method for forming and wrapping material into a continuous bar, comprising feeding said material to a wrapping position while forming said material; wrapping sheet around said material such that said sheet at least partly overlaps a previously wrapped round of sheet; and transferring the wrapped material from said wrapping position to a storage ready position. The step of feeding the material to a wrapping position and said step of wrapping sheet around the material are separately operable.
    Type: Application
    Filed: June 23, 2011
    Publication date: May 2, 2013
    Applicant: TRIOPLAST AB
    Inventors: Lars Öhrn, Mikael Liljegren
  • Publication number: 20130032046
    Abstract: The present invention relates to a prestretched polyethylene film having a longitudinal stretch ratio of from about 1:2 to about 1:4 and having a longitudinal elongation capability of at least 170%, said elongation capability comprising an elastic component. The invention also relates to a method for producing said film and to a method of wrapping compressed bulk material such as a round bale using said film, the method comprising further stretching the prestretched film and applying the film around the compressed bulk material in direct contact therewith. The film according to the invention may be used as a net replacement film and allows increasing the efficiency and the economics in the baling process by allowing faster baling, use of a lesser amount of wrapping film and/or improved protection of the product.
    Type: Application
    Filed: December 17, 2010
    Publication date: February 7, 2013
    Applicant: TRIOPLAST AB
    Inventors: Lars Öhrn, Inger Byström, Torbjörn Runesson, Andreas Lindberg
  • Patent number: 7152306
    Abstract: A method for installing a stator winding in a stator core. A winding turn is formed by drawing a cable portion from a cable reel and inserting it into two winding slots. Each winding turn that is jointlessly connected to first winding turn and has the same winding direction as the first turn is formed by making this winding turn include a cable section corresponding to a turn on the reel that has been lifted off the reel by lateral movement over a gable of the reel. To form each winding turn that is jointlessly connected to the first winding turn and has a second winding direction opposite the winding direction of the first turn, the cable portion forming this winding turn is made to include a section corresponding to a turn on the reel that has been lifted off the reel by lateral movement over the other gable.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: December 26, 2006
    Assignee: ABB AB
    Inventors: Birger Andersson, Lars Öhrn, John Seppas, Hans-Åke Eriksson, Gunnar Porsby, Göran Eriksson, Jan-Olof Lamell, Ville Voutilainen, Daniel Dahlblom, Lars Bjernegård