| 摘要 |
<p>A neck finish (10) for a tamper-evident bottle (11) is disclosed having at least ten helically spaced threads (24) which extend along a substantial length of the exterior wall (12) of the neck. The neck finish may include one or two annular ring flanges (19, 22) to accept a snap-on cap (30). Also disclosed are tamper-evident caps having at least ten helically spaced threads (43) positioned on the inner surface (32) of the cap. In one embodiment, the cap includes one or two annular ring flanges (40, 41) to engage the ring flanges on the disclosed neck finish. Another tamper-evident cap includes ten helically spaced threads which are adapted to engage at least some portion of threads on a neck finish.</p> |
