| 摘要 |
A container for liquids such as soft drinks, and the like is provided with a relief bore valve which is formed as a small scribed area at the top of the container. When the ring-pull tab of the container is depressed, it will puncture the scribed area to form the relief bore valve. This will slowly release pressurized carbonation within the container, thereby avoiding the usual explosive release of gas and liquids. Upwardly lifting the ring-pull tab in the reverse direction will then puncture the larger, scribed area for drinking use. Use of the relief bore valve also enables a more uniform, uninterrupted drainage of the liquid while drinking, while still maintaining most of the original carbonation.
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