Refrigeration – Chemical reaction or solids dissolving
Patent
1992-11-06
1994-05-24
Capossela, Ronald C.
Refrigeration
Chemical reaction or solids dissolving
126263R, F25D 500
Patent
active
053137990
ABSTRACT:
The magnetic ice cube works without a freezer or a refrigerator, and can be stored for indefinite periods at room temperature without losing its cooling potential. The cooling element of the magnetic ice cube consists of an air evacuated sealed heat exchange chamber containing water. The water will boil at low temperature and absorb heat from its environment, if the vapor generated by the boiling water is removed. This is accomplished by a desiccant placed in a separate chamber. The vapor passes through a tube, into the chamber containing the desiccant which removes the vapor. The top portion of the tube is placed in the desiccant chamber, is flexible, and communicates with its environment through a hole in a rubber lined inside magnet. During storage of the device, a force of attraction between the inside magnet and an outside surface magnet causes the inside magnet to press against a rubber layer lining the top inside surface of the desiccant chamber. This blocks the hole in the magnet and closes the communication between the chambers. The cooling process is initiated by turning the outside magnet upside-down. This changes the attractive force between the magnets to a repulsive force. This pushes the inside magnet away from the surface rubber layer and opens the communication between the chambers. Surface extensions from the walls of the desiccant chambers limit the travel of the inside magnet away from the outside magnet.
REFERENCES:
patent: 1863579 (1932-06-01), Morse et al.
patent: 5168708 (1992-12-01), Siegel
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