发明名称 |
TWIST OPEN CLOSURE HAVING INCLINED FRANGIBLE MEMBRANE |
摘要 |
A closure for a container having an opening includes a base cap and an overcap that form a chamber adjacent the opening which is sealed from the contents of the container by a frangible membrane having an inclined line of weakness and by a hinge member having a pocket extending downward adjacent lower and upper terminuses of the line of weakness. The overcap includes a cutting member received within the pocket that severs the line of weakness upon substantial rotation of the overcap with respect to the base cap. A pushing member may cooperate with a cam member to deflect open the membrane upon severance. The pocket may include a stop for the cutting member. The base cap may include a cylindrical structure having an upwardly inwardly projection member to form a seal with an thickened upper portion of the overcap skirt to protect against penetration into the chamber.
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申请公布号 |
US2008124432(A1) |
申请公布日期 |
2008.05.29 |
申请号 |
US20080027627 |
申请日期 |
2008.02.07 |
申请人 |
PORTOLA PACKAGING, INC. |
发明人 |
MA MIKE XIAOLI |
分类号 |
B65D41/50;B65D25/08;B65D41/34;B65D47/06;B65D51/28;B65D81/32 |
主分类号 |
B65D41/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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