| 摘要 |
A one-piece plastic cap, primarily for glass bottles, having two separate annular sealing areas, one formed by a hollow cylindrical stopperlike portion extending down from the top of the cap into the neck of a bottle or other container, and the other sealing portion formed by a flexible rim-engaging flange extending out in skirtlike fashion from the cylindrical portion near its top and deformable upwardly by the pouring rim of a bottle or the like into conformity with the rim contour at all points around the engaged portion of the rim.
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