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SELF-COOLING FOOD OR BEVERAGE CONTAINER HAVING A HEAT EXCHANGE UNIT USING LIQUID CARBON DIOXIDE AND HAVING A DUAL FUNCTION VALVE
SELF-COOLING FOOD OR BEVERAGE CONTAINER HAVING A HEAT EXCHANGE UNIT USING LIQUID CARBON DIOXIDE AND HAVING A DUAL FUNCTION VALVE
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机译:自冷却食品或饮料容器,具有使用二氧化碳的液态二氧化碳和双功能阀的换热单元
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摘要
A self-chilling food or beverage container including an outer container and a heat exchange unit (HEU) secured internally of said outer container and having liquid carbon dioxide (CO2) therein, the HEU including a valve member which provides a restricted orifice in one position to allow the liquid CO2 to pass from the liquid state directly to the gaseous state while maintaining pressure in the HEU to keep the residual CO2 in the liquid state and in a second position to provide a substantially unrestricted flow path to permit liquid CO2 to be inserted into the HEU.
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