发明名称 Present invention relates to improvements in tamper-proof closures
摘要 A tamper-proof seal for a container having at least one circumferentially extending flange adjacent the discharge opening therein comprising an annular top and a circumferentially extending skirt depending from the top adapted to be crimped at its lower terminal edge to engage under the flange to hold it on the container. A pull ring connects to the annular portion by a throat portion and partial score lines extend across the annular top portion on either side of the pull ring and define a plurality of circumferentially spaced score lines extending from the lower edge of the skirt upwardly in an axial direction to a point closely adjacent the juncture of the skirt and annular top portion. The axial score lines are spaced closely about the skirt.
申请公布号 US4784279(A) 申请公布日期 1988.11.15
申请号 US19870080409 申请日期 1987.07.31
申请人 THE WEST COMPANY 发明人 OSTING, RICHARD C.;CONARD, WILLIAM A.
分类号 B65D55/08;(IPC1-7):B65D51/00 主分类号 B65D55/08
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