초록 ▼

There is disclosed a tamper-evident closure including a depending tamper-evident skirt member capable of being positioned by longitudinal force (i.e. pushed on) onto a neck of a container including a skirt collar wherein the closure is formed with an internal thread and the neck of the container is

There is disclosed a tamper-evident closure including a depending tamper-evident skirt member capable of being positioned by longitudinal force (i.e. pushed on) onto a neck of a container including a skirt collar wherein the closure is formed with an internal thread and the neck of the container is formed with an external thread and wherein the tamper-evident depends by angularly-formed arm members from the closure, and wherein the threads are of multiple courses and wherein a groove of the skirt member of the closure engages the skirt collar of the container in an assembled relationship of the closure to the container.

대표청구항 ▼

A tamper-evident closure for use in connection with a container including a threaded neck portion and an annular collar portion below said threaded neck portion which comprises: a one-piece closure body including an upper closure portion comprised of an end wall and a cylindrical side wall, said cyl

A tamper-evident closure for use in connection with a container including a threaded neck portion and an annular collar portion below said threaded neck portion which comprises: a one-piece closure body including an upper closure portion comprised of an end wall and a cylindrical side wall, said cylindrical side wall including an internally threaded upper portion, a depending lower skirt portion, and flexible arm members formed between said closure body and said lower skirt portion defining an opening therebetween, said internally threaded upper portion of said closure being formed of a triple thread type and cooperating with said threaded neck portion of said container, said threaded neck portion of said container being of a cooperating triple thread configuration to thereby permit axial positional alignment of said closure on said threaded neck portion of said container prior to positioning of said closure on said threaded neck portion of said container by a downward force on said closure, said upper closure portion being formed with intermediate wall portions depending downwardly into said opening in said spaced-apart relationship to said depending lower skirt portion, said depending lower skirt portion including an inwardly projecting bead adapted to engage said annular collar portion of said container when said closure is positioned in fluid tight relationship to said container, said intermediate wall portions contacting said depending lower skirt portion during downward movement and thus positioning said closure onto said threaded neck portion of said container to thereby cause said inwardly projecting bead of said depending lower skirt portion to engage said annular collar portion of said container, said flexible members permitting relative longitudinal contacting movement between said upper closure portion and said depending lower skirt portion during positioning of said closure on said container and being fracturable to thereby leave said depending lower skirt portion on said container after said upper closure portion of said closure is unthreaded from said container.