| 摘要 |
A tamper-evident plastic closure cap construction which is intended to provide to the consumer a distinctive visual alerting indication in the event that the container has been previously opened or tampered with, comprising a closure portion and a base portion, the latter being snapped into position on the container and held permanently thereon by means of cooperable retainer shoulders. The closure portion seals off the dispensing orifice of the container in a usual manner. Joining the closure portion to the base portion are multiple frangible webs associated with an indicator ring which normally occupies a first or depressed position prior to opening of the container. When the closure portion is initially turned or otherwise disturbed, the frangible webs break, and their resilience causes the ring to shift laterally by a significant amount to a second or raised position, which attracts the attention of one handling the container. The ring thus provides a more pronounced indication of possible tampering than all previous constructions which depended solely on breakage of one or more relatively small webs to reveal tampering.
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