发明名称 |
Closure assembly for a drinking vessel |
摘要 |
A closure assembly for a drinking vessel comprising a lid (2) with a spout (3). A diaphragm valve (14) is mounted on a central spigot (7) of an insert which protrudes from the bottom of the spout (3) and has an enlarged head (8) which provides a sealing surface (9) which cooperates with a bead (16) around a central hole (22) in the diaphragm. The diaphragm (14) has an annular flap (18) at its periphery which normally closes a breather hole (4) in the lid (2) but opens when a user sucks on the spout (3) to allow air to enter container (1) to equalize the internal and external pressure when liquid flows past the diaphragm (14).
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申请公布号 |
US6305570(B1) |
申请公布日期 |
2001.10.23 |
申请号 |
US20000601229 |
申请日期 |
2000.09.27 |
申请人 |
CANNON RUBBER LIMITED, A BRITISH COMPANY |
发明人 |
ATKIN EDWARD;WILLIAMS ROGER LEONARD |
分类号 |
A47G19/22;B65D47/20;B65D51/16;(IPC1-7):A47G19/22 |
主分类号 |
A47G19/22 |
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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