| 摘要 |
A cover for a liquid container having a body for holding a liquid and defini ng a body aperture has a mobile member connectable to a fixed structure relative to the aperture via a resilient outer membrane connected thereto, and an inner closing structure mountable in the body proximal the aperture and connected to the mobile member. The inner closing structure is movable, by application of an inwardly directed axial force to the mobile member, from a first configurati on for the cover, in which the inner closing structure impedes passage of the liqui d through the aperture, into a second configuration in which at least a portio n of the aperture is unblocked and the liquid may flow therearound and out of the aperture for removal from the container. The membrane biases the inner closing structure and the mobile member into the first configuration for the cover. |
