| 摘要 |
<p>A closure includes a sidewall (130), a plurality of knurls (120), a top surface (140), and a rim (150). The sidewall has an outer surface, about which the knurls are distributed. The top surface is bounded by the sidewall. The rim includes a portion of the sidewall extending above the top surface, a top edge, and an inner surface. According to techniques of the application, the rim has a first curvature (151) having a first curvature radius. The first curvature is convex and extends from the top edge of the rim towards the outer surface of the sidewall. The rim has a second curvature (152) having a second curvature radius. The first curvature radius is larger than second curvature radius. According to other techniques, the closure sidewall includes a first type of knurls (220) alternating with groups of a second type of knurls (222).</p> |
