| 摘要 |
A cap for a container for storing liquid comprising a base comprising at least one passage adapted to be in fluid communication with the interior of the container. The cap comprises a seal made of an elastomeric material and comprising a depressible portion, a flange portion at least partially surrounding the depressible portion, and a seal stem extending downwardly from the depressible portion. The seal is movable between a first position, wherein the depressible portion is above the flange portion and a second position, wherein the flange portion is above the depressible portion. The cap also comprises a valve connected to the seal stem and movable between a closed position, wherein the valve prevents the outward passage of the consumable liquid through the passage and an open position, wherein the valve allows passage of the consumable liquid through the passage. In use, upon pressure of a user on the depressible portion of the seal, the depressible portion is moved downwardly such that the valve is moved into the open position and the seal is moved into the second position, and wherein, upon pressure of the user on the flange portion of the seal, the depressible portion is moved upwardly such that the valve is moved into the closed position and the seal is moved into the first position.
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