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Self-cooling beverage container having a heat exchange unit using liquid carbon dioxide and a twist top activation system

A technology of liquid carbon dioxide, heat exchange unit, applied in the field of containers for holding food or drink

Active Publication Date: 2019-04-02
JOSEPH CO INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some users have found it difficult to get the push button to move into place to create the restricted orifice and release gaseous carbon dioxide

Method used

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  • Self-cooling beverage container having a heat exchange unit using liquid carbon dioxide and a twist top activation system
  • Self-cooling beverage container having a heat exchange unit using liquid carbon dioxide and a twist top activation system
  • Self-cooling beverage container having a heat exchange unit using liquid carbon dioxide and a twist top activation system

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Experimental program
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Embodiment Construction

[0027] See now more specifically figure 1 , which shows the phase diagram for carbon dioxide. As shown, carbon dioxide can have a solid phase, a liquid phase, or a vapor or gas phase. In accordance with the principles of the present invention, it is critical that the carbon dioxide remain in its liquid phase and be prevented from entering the solid phase where dry ice would form during the use of the heat exchange unit to lower the temperature of the food or drink in the container. As shown, a triple point on a phase diagram is the point at which the three states of matter (gas, liquid, and solid) coexist. A critical point is a point on a phase diagram at which a substance (in this example carbon dioxide) cannot be distinguished between liquid and gaseous states. The vaporization (or condensation) curve is curve 10 on the phase diagram, which represents the transition between the liquid state and the vapor or gas state. As shown, a phase diagram plots pressure (usually in a...

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Abstract

A self-cooling container for holding a food or beverage includes a heat exchange unit (HEU) secured internally thereof so that the food or beverage is in contact with the outer surface of the HEU, theHEU being closed by a frangible membrane which is punctured by a pierce pin when a twist base activator is rotated in a first direction to create dis-equilibrium to cause liquid carbon dioxide contained within the HEU to pass directly from the liquid to the gaseous state and pass through a restricted orifice to atmosphere to cool the food or beverage.

Description

technical field [0001] The present invention generally relates to a container for holding food or drink, in which container also includes a heat exchange unit using liquid carbon dioxide and having an outer surface that contacts the food or drink and changes the temperature of the food or drink when activated. Background technique [0002] It has long been desired to provide a simple, effective and safe device which can be housed in eg a food or drink container for changing the temperature of the food or drink on demand. [0003] In many situations, such as where ice or refrigeration is not readily available, such as when camping, at the beach, boating, fishing, etc., it is desirable to allow beverages to cool before drinking. In the past, freezers etc. containing ice and containers for beverages had to be employed so that they could be cooled in the desired manner and then used. Such freezers are cumbersome to use, take up a lot of space and last only a very limited time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D3/10F25D3/00F25D3/08F25D7/00F25D31/00
CPCF25D3/107F25D2331/805F25D31/007F25D2303/0842
Inventor M.西林斯
Owner JOSEPH CO INT INC