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AssigneeAladdin Industries, Incorporated
InventorsJohn A. Bridges, Philip H. Neal, John E. Besser
Estimating the term…
A vacuum insulated panel having high thermal insulating value is described together with a method of making such a panel. The panel is formed of peripherally welded metallic wall members which define a cavity within which a solid compressed block of particulate material is disposed. The particulate material, preferably an activated carbon black, a silica gel or a combination thereof, serves as a barrier to radiant thermal transmission through the panel, acts as a getter to maintain the vacuum in the cavity, and, with proper density, supports the walls of the panel against collapse when the cavity is evacuated. In one embodiment of the invention, the vacuum insulated panel is covered on one side with a polyurethane foam insulating material.
A vacuum insulated panel comprising first and second all-metal wall members joined together to define a cavity, a getter positioned within said cavity, said getter positioned in contact with said metal wall members, said getter comprising a compressed cake of powder material which substantially fills said cavity and prevents said wall members from contacting each other, means for assisting in evacuating said cavity to establish a vacuum within said cavity, and means for preventing said getter from being evacuated by said means for assisting in evacuating said cavity, said preventing means comprising a gas-permeable getter-impermeable member.
A vacuum insulated panel comprising first and second peripherally joined, all-metal panels defining a cavity, a compressed cake within said cavity, means for assisting in creating a vacuum within said cavity, wherein said compressed cake is in contact with said metal panels and comprises a getter material, said compressed cake substantially filling said cavity, said cake comprising means for preventing said metal panels from coming into contact with each other at least during the creation of the vacuum, and means for preventing said getter from being evacuated during creation of a vacuum within said cavity, said preventing means comprising a gas-permeable getter-impermeable member.
A method of making a vacuum insulated panel, said method comprising the steps of:
A vacuum insulated article of manufacture comprising first and second all-metal panels defining an evacuated vacuum cavity, each of said panels having an edge, said edges being attached to each other, a block of compressed powder getter material and a gas-permeable getter-impermeable member for preventing evacuation of said getter material being positioned within said cavity, said powder material comprising means for preventing collapse of said cavity during evacuation, means for acting as a radiant barrier, and means for acting as a getter within said cavity.
A vacuum insulated panel comprising:
A method of forming a vacuum insulated panel comprising the steps of:
A vacuum insulated panel comprising first and second all-metal wall members peripherally joined directly to each other to define a cavity, each of said wall members comprising a stainless steel sheet having a thickness of about 0.004 to 0.013 inch a block of powder getter material positioned within said cavity and contacting said wall members, means for assisting in evacuating said cavity to establish a vacuum within said cavity, and means for preventing said getter from being evacuated by said means for assisting in evacuating said cavity, said means for preventing comprising a gas-permeable getter-impermeable member positioned adjacent said means for assisting.
Dependencies are inferred from the claim text.