| 摘要 |
A lid to cover a liquid holding container includes a circular rim portion for engaging the container rim and a cover opening for permitting liquid to pass in and out of the container. A support is centrally situated in the cover, the support having an upper margin situated at least as high as the circular rim portion. A closure member is formed unitarily with the cover and configured to seal the cover opening. A hinge permits the closure member to be pivoted between a position where the closure member is engaged in the cover opening and a position where the closure member is displaced from the cover opening. The hinge is molded unitarily to the upper margin of the central support in the cover.
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