Patents by Inventor Dan Robertsson

Dan Robertsson 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).

  • Publication number: 20250128844
    Abstract: A laminated packaging material is provided. The laminated packaging material comprises a bulk layer of paper or paperboard or other cellulose-based material comprising a plurality of longitudinally distributed holes extending through the bulk layer, one or more outside layers being laminated to the bulk layer, one or more inside layers being laminated to the bulk layer, wherein said inside and outside layers covering said holes on the bulk layer and so form the plurality of longitudinally distributed laminated holes, and a plurality of longitudinally distributed primary holes extending through the entire thickness of the of the associated laminated hole and wherein the each primary hole is surrounded by the edges of the laminated hole.
    Type: Application
    Filed: February 1, 2023
    Publication date: April 24, 2025
    Applicant: Tetra Laval Holdings & Finance S.A.
    Inventors: Luca SPINELLI, Henrik SKANSE, Dan ROBERTSSON, Gabor BENKÖ
  • Patent number: 10850422
    Abstract: The present disclosure relates to a cutting system for providing holes in a core material layer. The cutting system has a cutting tool having a cutting knife configured to cut through the core material layer, and an anvil having a rigid support surface for receiving the cutting knife of the cutting tool. The cutting system further has an elastic member that is positioned to absorb at least a part of a force applied when the cutting tool is pressed against said anvil.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: December 1, 2020
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Ulf Mårtensson, Seppo Bergman, Dan Robertsson
  • Publication number: 20190152087
    Abstract: The present disclosure relates to a cutting system for providing holes in a core material layer. The cutting system has a cutting tool having a cutting knife configured to cut through the core material layer, and an anvil having a rigid support surface for receiving the cutting knife of the cutting tool. The cutting system further has an elastic member that is positioned to absorb at least a part of a force applied when the cutting tool is pressed against said anvil.
    Type: Application
    Filed: May 15, 2017
    Publication date: May 23, 2019
    Inventors: Ulf Mårtensson, Seppo Bergman, Dan Robertsson