| 摘要 |
A reusable closure for a container has a reversibly hinged annular pilferproof band integrally joined thereto by a relatively thin annular web serving as a hinge. When the parts are assembled, the band is pivoted about the web from a first position to a second, reversed position wherein it extends over a bead on the container. In the illustrated embodiments, the closure is a screw cap for a bottle and the band is joined about the base of the skirt of the cap. The bottle has a threaded neck for receiving the screw cap and the aforementioned bead about the neck. The band loosely interfits with the bead so that the cap can be initially unscrewed for removal without substantial restriction. As removal continues, the band so engages the bead that the connection between the band and the closure skirt stretches and then ruptures. Apparatus and methods for reversing the positions of a band are also disclosed.
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