| 摘要 |
A rigid body in the form of a truncated cone is dimensioned to fit over the top of a container, such as a can with a beaded top, to allow the opening in a carrier comprised of stretchable or elastic material to be manually expanded by movement of the carrier down the side of the truncated cone, beyond the bottom of the truncated cone, allowing the opening to retract against the body of the container below the beaded top.
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