TAMPER-EVIDENT CONTAINER CAP AND NECK FINISH

摘要

A tamper-evident cap is disclosed having a circular closure member, a cylindrical annular wall depending generally from the periphery of the closure member terminating with a base and having a plurality of serrations, and a tamper-evident band circumferentially positioned around the base having teeth and attached to a portion of the base. The tamper-evident band may be mounted to the base by at least one of the teeth or attached by at least one of the serrations extending below the base. The interior and/or exterior of the cylindrical wall may be stepped. The tamper-evident band may have a groove between the teeth for retaining the tamper-evident band on a neck finish. A neck finish having at least one set of teeth and optional raised portions for securing the tamper-evident band in place is also disclosed. The neck finish may be stepped to correspond with a cap having a cylindrical wall with a stepped interior. A cap and neck finish combination for a container is also disclosed.

主权项

1. A container cap and neck finish combination comprising:
a tamper-evident cap comprising:
a circular closure member;a cylindrical annular wall depending from the closure member having an interior threaded surface and a base; anda tamper-evident band attached to the base of the cylindrical annular wall having a plurality of teeth extending radially inward from an interior surface of the band and an annular groove in the interior surface of the band; and a neck finish comprising a cylindrical wall having an upper end portion and a lower end portion, defining an opening therethrough, wherein:
the upper end portion comprises an exterior threaded surface threadingly engaged with the interior threaded surface of the cylindrical annular wall of the tamper-evident cap; andthe lower end portion comprises an exterior surface having a plurality of teeth extending radially outward therefrom engageable with the plurality of teeth extending radially inward from the interior surface of the band, and the lower end portion comprises a plurality of raised portions extending radially outward therefrom received in the annular groove of the interior surface of the band to thereby retain the band on the neck finish when the circular closure member and cylindrical annular wall of the tamper-evident cap are removed from the neck finish.