| 摘要 |
An improved cosmetic container cap assembly includes a molded plastic base cap including a wall having an inner surface for mating with a container and an outer surface including a plurality of substantially parallel vertical ribs disposed on the outer surface of the wall. The cosmetic container cap assembly also includes a molded plastic shell sized to surround the outer surface of the base cap and including a wall having an inner surface and an outer surface, the inner surface including a plurality of substantially parallel vertical ribs disposed to mate with the vertical ribs of the base cap. The ribs of at least one of the base cap or the shell include a plurality of protruded portions extending from the ribs that plastically deform when the shell is fitted over the outer surface of the base cap to secure the base cap through an interference fit.
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