Direct sorption self-cooling beverage container

Details Direct sorption self-cooling beverage container Direct sorption self-cooling beverage container

1991-01-30

1992-01-14

Makay, Albert J.

Refrigeration

Hand manipulable tool

62101, 62480, 624573, F25D 308

Patent

active

050799320

ABSTRACT:
The invention describes a sorption self-cooling beverage device which cools its beverage instantaneously, and no heat conducting surfaces are required. A chamber containing a beverage is mixed with a consumable refrigerant such as water. The boiling point of the beverage-refrigerant mixture is lowered to freezing temperatures by an air vacuum. The vapor generated by the boiling beverage-refrigerant mixture is conducted to another chamber containing a desiccant, which removes the vapor. A barrier permeable to water vapor but not to desiccant particles is placed between the beverage-refrigerant and desiccant chambers to prevent a contamination of the beverage by the desiccant. A water absorber is placed in the desiccant chamber to prevent a contamination of the beverage with liquid which may have entered the desiccant chamber from the beverage chamber.

REFERENCES:
patent: 4250720 (1981-02-01), Siegel
patent: 4993236 (1991-02-01), Wilson

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