发明名称 |
DISPENSER CLOSURE HAVING DISTORTABLE DIAPHRAGM SEAL |
摘要 |
<p>The invention relates to a dispenser closure formed of elastomeric material which is suitable for fitting to the discharge spout of a liquid container formed of a flexible film material such as polyethylene film and housed in a cardboard casing. The closure is provided with sealing means, the effectiveness of which is increased with increasing pressure within the container, and a diaphragmatic transverse wall positioned across the discharge spout, said transverse wall being provided with an outwardly directed protrusion which is manipulated with a toggle like action to distort the transverse wall and sealing means to permit liquid to flow from the container.</p> |
申请公布号 |
CA1081166(A) |
申请公布日期 |
1980.07.08 |
申请号 |
CA19760244112 |
申请日期 |
1976.01.23 |
申请人 |
WELSH, WILLIAM C.;KAILIS, PETER G |
发明人 |
WELSH, WILLIAM C. |
分类号 |
B65D8/02;B65D47/20;(IPC1-7):65D47/08 |
主分类号 |
B65D8/02 |
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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