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1. 发明授权

US5931332A Tamper-evident closure with pull-tab 失效
标题翻译：防篡改闭合带拉片
公开(公告)号：US5931332A
公开(公告)日：1999-08-03
申请号：US796660
申请日：1997-02-05
申请人： Leonard T. Mygatt , Mathew O. Chedister
发明人： Leonard T. Mygatt , Mathew O. Chedister
IPC分类号： B65D1/00 , B65D17/34 , B65D21/02 , B65D43/02 , B65D75/64 , C12N9/12 , B65D41/46
CPC分类号： C12N9/1205 , B65D1/00 , B65D21/0233 , B65D43/0239 , B65D2101/0023 , B65D2543/00092 , B65D2543/00296 , B65D2543/00472 , B65D2543/00509 , B65D2543/00546 , B65D2543/00629 , B65D2543/00685 , B65D2543/0074 , B65D2543/00796 , B65D2543/00842
摘要： A tamper-evident container system having a lid fitting over a container and a pull-tab attached to the lid along frangible lines. The pull-tab angles inwardly and upwardly from a peripheral rim of the lid and terminates below the topmost portion of the lid. The pull-tab joins to the adjacent walls of the lid rim along thin integrally formed webs which are easily severed upon displacement of the pull-tab to provide highly visible evidence of tampering. The webs extend from an inner section of the rim and across at least a portion of an upper bridge formed on the rim, further enhancing the visibility of any tampering. The pull-tab forms a small angle with a vertical inner wall of a recess of the lid and extends circumferentially around the inner wall without extending above the rim. A sealing ring formed on the lid below the pull-tab enables the container system to be resealed by the consumer after opening. A poppet-style injection molding assembly is used to form the lid which creates a space between the mold parts forming the angled pull-tab prior to release of the lid from an undercutting mold structure.
摘要翻译：一种防拆封容器系统，其具有装配在容器上的盖子，以及沿易碎线条附接到盖子的拉片。拉片从盖的外围边缘向内和向上倾斜并且终止在盖的最上部的下方。拉片沿着薄的整体形成的腹板连接到盖子边缘的相邻壁，当腹板移位时容易切断，以提供高度可见的篡改证据。腹板从轮缘的内部部分延伸并穿过形成在轮辋上的上部桥的至少一部分，进一步增强了任何篡改的可视性。拉片与盖的凹部的垂直内壁形成小角度，并且围绕内壁周向延伸，而不延伸到边缘上方。形成在拉片下方的盖上的密封圈使得容器系统在打开之后能够被消费者重新密封。使用提升式注塑组件来形成盖子，该盖子在从底切模具结构释放盖子之前在形成倾斜拉片的模具部件之间产生空间。

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