Patents Assigned to Isovac GmbH
  • Double-wall insulated container
    Patent number: 6168040
    Abstract: A double-wall insulated container has an internal wall and an external wall enclosing an intermediate space which is under partial vacuum. A foam glass granulate fills the intermediate space and supports the walls. The walls may be metal or plastic and sealed with a vapor barrier as necessary to make the space leak-proof. The container may be styled as a Dewar flask for food or beverages, or larger to make it suitable for a household appliance such as a refrigerator.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 2, 2001
    Assignee: Isovac GmbH
    Inventors: Karl Heinz Sautner, Jobst Kerspe