发明名称 TAMPER RESISTANT COMPOSITE LIDS FOR FOOD CONTAINERS
摘要 A tamper-resistant, tamper-evident composite lid is disclosed for use with containers having a peripheral lip formation around the opening thereof, such as an ice cream container. The closure member comprises integral outer and inner cylindrical ring portions which present at their upper peripheral margin a downwardly stepped annular ledge formation for adhesively receiving a paperboard or other flexible cover panel. The inner ring portion presents a plurality of resiliently deformable teeth extending upwardly and inwardly from its lower peripheral margin configured to lockingly engage with the lip of the container for sealing. The inner ring is circumscribed by a rupturable line of weakness which ruptures upon any attempt to prise off the lid, providing evidence of tampering. The container is legitimately opened by manually tearing away the bottom portion of the inner ring along its line of weakness.
申请公布号 WO02094664(A1) 申请公布日期 2002.11.28
申请号 WO2002CA00713 申请日期 2002.05.16
申请人 STANPAC INC. 发明人 WITT, STEVEN, H.
分类号 B65D17/40;B65D43/02;B65D43/10;B65D85/78;(IPC1-7):B65D17/40;B65D55/08 主分类号 B65D17/40
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