发明名称 |
Synthetic resin container closure |
摘要 |
A container closure formed from a synthetic resin as a single unit has a circular top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. An outer cylindrical sealing protrusion, an inner cylindrical sealing protrusion, and annular sealing ridge, all having a predetermined shape and a predetermined size, are formed on the inner surface of the top panel wall. In one embodiment, the thickness of the center portion of the top panel wall is reduced to a predetermined range and a plurality of ribs having a predetermined thickness are formed on the inner surface of the center portion of the top panel wall.
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申请公布号 |
US6779672(B2) |
申请公布日期 |
2004.08.24 |
申请号 |
US20010804267 |
申请日期 |
2001.03.13 |
申请人 |
JAPAN CROWN CORK CO., LTD. |
发明人 |
KANO YUJI;NAKAJIMA HISASHI |
分类号 |
B65D41/04;B65D41/32;B65D41/34;(IPC1-7):B65D53/00 |
主分类号 |
B65D41/04 |
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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