Patents by Inventor Lars E. Piltz

Lars E. Piltz 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: 4813208
    Abstract: A method and a device for scrap-free manufacture of coated profiles and thermoformed containers.A hollow pipe having a cross-section suitable for the desired profile is extruded.The extruded hollow profile is cut longitudinally.Thereafter the profile is planar laminated by a web formed material having desired characteristics.The cut, laminated profile thereafter is formed into the original shape thereof, or another suitable shape, and is formed into container casings.When thermoforming containers, a hollow profile is extruded from a thermoformable material in an extruder, this hollow profile is cut, in one or several longitudinal cuts. In web or roller form such cut profile is supplied to a so called scrap-free thermoforming machinery, where the thermoformed containers are manufactured.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: March 21, 1989
    Assignee: AB Akerlund & Rausing
    Inventors: Lars E. Piltz, Lennart Larsson
  • Patent number: 4484968
    Abstract: The invention relates to the covering with sheet material of flexible symmetrical angulate tubes, especially components of packages. By utilizing the resilient cross-sectional deformability of the tubes, there is provided a method and apparatus where the tube is mounted onto a cylindrical mandrel having a circumference corresponding essentially to the inner circumference of the tube and thereafter applying the sheet material around essentially the entire circumference of the tube.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: November 27, 1984
    Assignee: AB Akerlund & Rausing
    Inventors: Bo T. Quist, Jan B. Jeppsson, Lars E. Piltz