| 摘要 |
A snap-on overcap (20) for providing a tamper-evident capability to a closure assembly of a container (42) includes a cap (21), a removable skirt (22), and a plurality of frangible elements (23) which connect the removable skirt (22) to the cap (21). The closure assembly includes an internally-threaded fitting (43) and an externally-threaded closing plug (39) which is installed into the fitting (43). The cap portion (21) includes a depending sidewall (25, 26) which terminates in a snap-on lip portion (27). The removable skirt (22) includes a wall portion (29, 30) which is positioned in close proximity to an upper surface of the container when the cap is snapped onto the closure assembly. The snap-on engagement of the cap (21) to the closure assembly (39, 43) involves engagement by the lip portion with a cooperating edge of the closure assembly. To gain access to an edge of the cap to pry the cap off of the closure assembly, the skirt (22) must be removed.
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