Abstract:
A method of fabricating a vacuum insulated refrigerator structure includes positioning a first barrier film in a female mold cavity. Porous filler material is positioned on the barrier film, and a second barrier film is positioned over the porous filler material. A male mold is brought into contact with the second barrier film to deform and compress the porous filler material into a 3D shape. A vacuum is formed between the first and second barrier films, and the first and second peripheral edge portions are sealed together to form a vacuum insulated core. The vacuum insulated core may be positioned between a liner and a wrapper to form an insulated refrigerator cabinet, door, or other vacuum insulated component.
Abstract:
An insulating vacuum panel comprising a microporous, open cell silica foam or a precipitated silica insulating support member enclosed within a sealed, flexible polymeric envelope, the envelope comprising a heat-sealable barrier film comprising a multiple layer laminate containing at least one polyethylene terephthalate layer and at least two barrier layers selected from the group consisting of polyvinylidene chloride, polyvinyl alcohol, polyamide, polyolefin and aluminum foil, or a biaxially oriented liquid crystal barrier film which minimizes permeation of gas and liquid through the barrier film, the panel having an R value per inch of at least about 20 wherein the enclosed insulated vacuum panel is useful as insulation to maintain an essentially constant temperature in a closed structure, a system for storing and transporting temperature-sensitive materials wherein the insulated vacuum panels are employed to provide and maintain a constant temperature in the system, a method for manufacturing the insulating vacuum panel, and a system for storing and transporting temperature-sensitive materials are described.
Abstract:
A portable, self-sustaining refrigeration system for storing and transporting temperature sensitive materials comprising an insulated housing constructed of double wall plastic panels having an R value per inch of at least 20, and a thermal storage phase change material in the form of a reversible gel for operation at about 0.degree. to 10.degree. C. wherein the reversible gel is enclosed in a sealed liquid-impervious enclosure, is disclosed.
Abstract:
An insulating vacuum panel comprising an insulating support member enclosed within a sealed, flexible polymeric envelope, the envelope comprising a polymeric barrier film which minimizes permeation of gas and liquid through the barrier film, the panel having an R value per inch of at least about 20 wherein the enclosed insulated vacuum panel is useful as insulation to maintain an essentially constant temperature in a closed structure, and a system for storing and transporting temperature-sensitive materials wherein the insulated vacuum panels are employed to provide and maintain a constant temperature in the system are described.
Abstract:
An insulation panel comprises a mineral fiber board having a density between 8 and 28 pounds per square foot, the fibers having no organic binder thereon, and between 5 and 40 percent by weight of particulate material packed in the interstices of the board, and a gas-tight envelope encapsulating the board, the envelope being evacuated to a vacuum between 10.sup.-4 Torr and 10 Torr.
Abstract:
Precipitated silica, formed by the interaction of sodium water glass and sulfuric acid, followed by mechanical processing, is employed as an insulating material having a low thermal conductivity. The precipitated silica is dried, compressed, placed in an evacuable pouch, and evacuated. The resulting board-like insulation configuration is used directly as insulation in, for example, household refrigerators.
Abstract:
A walled structure for an appliance comprising: (i) an inner wall portion defining a reception compartment, the reception compartment having a width; (ii) an outer wall portion facing the inner wall portion and at least partially surrounding the inner wall portion, the outer wall portion separated from the inner wall portion by a space, the outer wall portion being disposed further away from the reception compartment than the inner wall portion, the outer wall portion having a width parallel to the width of the reception compartment; (iii) an interior volume including the space between the inner wall portion and the outer wall portion; and (iv) an aperture through the outer wall portion providing access to the interior volume, the aperture having a width parallel to the widths of the reception compartment and the outer wall portion that is at least 25 percent of the width of the outer wall portion.
Abstract:
A method of fabricating a vacuum insulated refrigerator structure includes positioning a first barrier film in a female mold cavity. Porous filler material is positioned on the barrier film, and a second barrier film is positioned over the porous filler material. A male mold is brought into contact with the second barrier film to deform and compress the porous filler material into a 3D shape. A vacuum is formed between the first and second barrier films, and the first and second peripheral edge portions are sealed together to form a vacuum insulated core. The vacuum insulated core may be positioned between a liner and a wrapper to form an insulated refrigerator cabinet, door, or other vacuum insulated component.
Abstract:
A vacuum adiabatic body, a method for fabricating a vacuum adiabatic body, a porous substance package, and a refrigerator including a vacuum adiabatic body and a porous substance package are provided. The vacuum adiabatic body may include a first plate, a second plate, a seal, a support, a heat resistance device, and an exhaust port. The support may include a porous substance and a film made of a resin material, the film configured to accommodate the porous substance therein. Accordingly, it may be possible to provide a vacuum adiabatic body through an inexpensive process.