Patents Assigned to UPNOR INNOVATION AB
  • MAKING AN ELONGATED PRODUCT
    Publication number: 20100035006
    Abstract: An elongated product is formed such that first a core is formed, the outer surface of the core being made of plastic. Thereafter, a tubular metal layer is extruded such that the layer is seamless. When the metal layer is extruded, a clearance is allowed between the metal layer and the core. After the metal layer has cooled, the diameter of the metal layer is reduced such that the metal layer contacts the plastic core. Thereafter, the metal is annealed such that the flexibility of the metal layer increases.
    Type: Application
    Filed: February 2, 2007
    Publication date: February 11, 2010
    Applicant: UPNOR INNOVATION AB
    Inventors: Jyri Järvenkylä, Franz-Josef Riesselmann, Ralf Winterstein, Reinhold Freermann, Lars Hoving