| 摘要 |
<p>A travel mug lid includes a first lid member and a closing mechanism. The first lid member includes a button opening. The closing mechanism includes a button, a core and a flexible material connected with the core. The button moves with respect to the core. The button includes a terminal portion that extends through or into the button opening. The button moves at least a portion of the flexible material with respect to the first lid member to selectively prevent flow of liquid through the drinking passage. The button and the core are isolated from liquid in the cup at least partially by the flexible material.</p> |
