Patents by Inventor Lars Lyngaas

Lars Lyngaas 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).

  • Hemming method and apparatus
    Patent number: 5752909
    Abstract: A skiving method comprises forming by milling, along an edge zone of a packaging blank comprised of a liquid-absorbent layer and at least two liquid-barrier layers thereon, a tongue, a recess inwardly of the tongue, a land inwardly of the recess, and a groove inwardly of the land, folding over the edge zone to insert the tongue into the groove, and sealing the edge zone to the remainder of the sheet material, preferably by mechanical pressure alone.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: May 19, 1998
    Assignee: Elopak Systems AG
    Inventors: Ragnar Harald Sagvik, Lars Lyngaas