Threaded container components having frustum shaped surfaces enabling nesting

Abstract

A container lid comprising a frustum shaped sidewall, a chuck shoulder formed between an upper edge of the sidewall and a seaming panel, and at least one translative motion guide feature extending radially inward from the sidewall. A bottom (lower) edge of the sidewall can be closed by a bottom wall or rolled creating an open design. The frustum shaped sidewall and size of the translative motion guide features is designed to enable nesting of multiple container lids/caps. The lid is seamed to a container body. The lid and cap each include sealing surfaces designed to engage with one another creating a gas and liquid impervious seal, preferably capable of retaining pressure within a container. Alternatively, the translative motion guide feature can be integral with a frustum shaped container body, such as a cup.