Wide mouth vacuum-insulated receptacle
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United States of America Patent
Stats
-
Feb 29, 2000
Grant Date -
N/A
app pub date -
Jul 1, 1997
filing date -
Jul 1, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A receptacle for maintaining perishables, such as food, at a reduced temperature features an exterior shell joined to an interior shell so that a space occupied by a vacuum exists between them. The junction of the inner and outer shells is located on the exterior of the receptacle. Phase change material is disposed within compartments in the bottom of the receptacle and is covered by a false bottom. A cryogenic liquid, such as liquid nitrogen, is poured down the interior walls of the receptacle and into the compartments containing the phase change material so that the phase change material is frozen in situs. A liquid absorbing material may be substituted for the phase change material.
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