| 摘要 |
A beverage container such as a can contains pressurized beverage together with a cartridge (32) containing a refrigerant such as carbon dioxide. A cartridge holder (42) holds the cartridge in place by engaging the inside of the can. A cartridge piercer (68) is positioned between the cartridge and the can end. When the can is filled and the end installed, the pressurized beverage releases part of its gas which increases gas pressure within the can. The increasing gas pressure deflects the can ends which are resilient. The released beverage gas also arms and lengthens the cartridge piercer to engage substantially under the deflected can end (20). When the can pressure is released, the cartridge piercer pierces the cartridge to release the carbon dioxide therein to chill the beverage container and its contents.
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