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Cryogenic freezer

  • US 20040226956A1
  • Filed: 05/14/2003
  • Published: 11/18/2004
  • Est. Priority Date: 05/14/2003
  • Status: Abandoned Application
First Claim
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1. A cryogenic freezer for storing materials at temperatures deviating greatly from ambient comprising:

  • a) an inner container, said inner container comprising four walls and a bottom;

    b) an outer container enclosing the inner container and defining a vacuum space therebetween, said outer container comprising four walls and a bottom, said inner container being connected to the outer container at the top of said walls to seal said vacuum space;

    c) a plurality alternating layers of reflective material and flexible insulating material; and

    d) a support structure positioned in the sealed vacuum space with one side positioned adjacent to the plurality of alternating layers, said support structure substantially reducing deflection of the walls when air is evacuated from the vacuum space.

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