| 摘要 |
A closure or stopper for cans and the like. The closure member includes a triangularly shaped member of elastic material in which there is rotatably mounted an adjusting member. The closure member is first inserted into the standard triangularly shaped opening of a can while the adjusting member is in an inactive position. The adjusting member is then rotated a predetermined angular distance whereby the closure member is sealingly pressed against the walls of the container opening.
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