| 摘要 |
A device by a drinking cup (1) comprising a container (2) and a valve element (4), the valve element (4) being provided with, on at least a portion of its free edge portion (12), an abutment (14) for a sealing, actuable gasket (8), and wherein a user's lip is resting against the gasket (8) when the drinking cup (1) is in its operating position. |
