Vacuum insulated sorbent-driven refrigeration device
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United States of America Patent
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Mar 30, 1993
Issued Date -
N/A
app pub date -
Jan 8, 1991
filing date -
Jan 5, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a self-contained, rapid cooling device that retains heat produced from the cooling process and can be stored for indefinite periods without losing its cooling potential. A liquid in a first chamber undergoes a change of phase into vapor which cools the first chamber. A second chamber forms a vacuum insulation about a third chamber which contains a sorbent. The sorbent in the third chamber is in fluid communication with the vapor and removes the vapor from the first chamber. The device is self-contained because a material in contact with the sorbent removes the heat from the sorbent to prevent the reduction in the cooling effect produced by the first chamber. In addition, a vacuum insulation about the third chamber keeps the heated sorbent from diminishing that cooling effect.
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