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Title: Compact vacuum insulation

Patent ·
OSTI ID:6254869

An ultra-thin compact vacuum insulation panel is comprised of two hard, but bendable metal wall sheets closely spaced apart from each other and welded around the edges to enclose a vacuum chamber. Glass or ceramic spacers hold the wall sheets apart. The spacers can be discrete spherical beads or monolithic sheets of glass or ceramic webs with nodules protruding therefrom to form essentially point'' or line'' contacts with the metal wall sheets. In the case of monolithic spacers that form line'' contacts, two such spacers with the line contacts running perpendicular to each other form effectively point'' contacts at the intersections. Corrugations accommodate bending and expansion, tubular insulated pipes and conduits, and preferred applications are also included.

DOE Contract Number:
Midwest Research Inst., Kansas City, MO (United States)
Patent Number(s):
US 5175975; A
Application Number:
PPN: US 7-856840
Resource Relation:
Patent File Date: 23 Mar 1992
Country of Publication:
United States