| 摘要 |
A plastic shell for a two-piece push-and-turn child-resistant closure in accordance with one aspect of the present disclosure includes a peripheral skirt, and a base wall from which the peripheral skirt depends. The base wall has a peripheral portion having a first thickness, a plurality of lugs disposed at least in part on the peripheral portion adjacent to the peripheral skirt, and a central portion having a second thickness less than the first thickness, and including a plurality of ribs having a third thickness greater than the second thickness and substantially equal to the first thickness and extending from the first peripheral portion toward a center of the base wall. |
