Patent Number: 6,168,040

Title: Double-wall insulated container

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.

Inventors: Sautner; Karl Heinz (Angelbachtal, DE), Kerspe; Jobst (Bammental, DE)

Assignee: Isovac GmbH

International Classification: F16L 59/06 (20060101); F25D 23/06 (20060101); F16L 59/065 (20060101); B65D 023/02 ()

Expiration Date: 01/02/2018