초록 ▼

A novel plastic closure is disclosed having a self-engaging locking pilfer band arrangement for engagement with a locking ring on the neck of the container to which the closure is applied. The pilfer band includes a plurality of circumferentially spaced, inwardly extending relatively thin flexible w

A novel plastic closure is disclosed having a self-engaging locking pilfer band arrangement for engagement with a locking ring on the neck of the container to which the closure is applied. The pilfer band includes a plurality of circumferentially spaced, inwardly extending relatively thin flexible wings or fingers which move to an out-of-the-way position during application of the closure to the container. When the closure is in place on the container, the wings are disposed such that they engage the surface of the locking ring on the container neck when the closure is moved for removal from the container. During removal, each wing engages the locking ring so that resistance to removal of the closure is created in the pilfer band, whereby areas of reduced strength fracture clearly indicating partial or complete removal of the closure from the container.

대표청구항 ▼

A closure for a container having a threaded neck including an annular locking ring portion comprising: a cap having a top wall portion, and a cylindrical threaded skirt portion depending from said top wall portion, and pilfer band means depending from said skirt portion and distinguished therefrom b

A closure for a container having a threaded neck including an annular locking ring portion comprising: a cap having a top wall portion, and a cylindrical threaded skirt portion depending from said top wall portion, and pilfer band means depending from said skirt portion and distinguished therefrom by a fracturable area, said pilfer band means including an annular band portion and a plurality of wing means each extending integrally inwardly of said band portion, and each being adapted to flex generally about an axis disposed at an acute angle to the axis of said cap during application of said closure to said container, whereby after said closure is applied to said container, said wing means are adapted to engage a lower surface of said locking ring portion when said closure is rotated for removal from said container thereby fracturing said fracturable area.