초록 ▼

A plastic closure with a U-shaped rim surrounding a closure portion, an upper wall of the rim extending both upwardly and downwardly from the closure portion and flaring outwardly away from the closure portion. The upper end of the inner wall joins into the base of the ‘U’shape and the lower end is

A plastic closure with a U-shaped rim surrounding a closure portion, an upper wall of the rim extending both upwardly and downwardly from the closure portion and flaring outwardly away from the closure portion. The upper end of the inner wall joins into the base of the ‘U’shape and the lower end is resiliently flexible. When fitted to a container, upper and lower ends of the inner wall seal against the lip and inner surface of the wall of the container, resiliency of the inner wall of the closure ensuring its sealing engagement with the container wall.

대표청구항 ▼

A plastic closure for a container comprising a closure portion and an annular rim surrounding the closure portion, the rim being of inverted U-shape and having radially spaced inner and outer axially extending walls which are joined by a base and defined a downwardly facing annular recess, the inner

A plastic closure for a container comprising a closure portion and an annular rim surrounding the closure portion, the rim being of inverted U-shape and having radially spaced inner and outer axially extending walls which are joined by a base and defined a downwardly facing annular recess, the inner wall having a portion extending upwardly from the closure portion to the base and a resiliently flexible portion extending downwardly from the closure portion to terminate in a free end, the two portions having outer surfaces which increase in diameter as they extend from the closure portion, and the outer wall having a locking means facing into the recess to engage the annular wall of a container to hold the closure upon the container when the closure is fitted thereto.