发明名称 |
METERING VALVE FOR A METERED DOSE INHALER PROVIDING CONSISTENT DELIVERY |
摘要 |
The present invention relates to a novel design for a metering valve that provides improved consistency of formulation delivery. Generally, the metering valve includes (a) a valve stem that generally defines a longitudinal axis and includes a body portion having a metering surface, wherein the longitudinal axis and a plane tangential to at least a portion of the metering surface define an angle from about 2~ to about 90~; and (b) a valve body having an internal chamber defined at least in part by the body wall and includes a metering portion configured to substantially conform to the metering surface of the valve stem.
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申请公布号 |
CA2496882(C) |
申请公布日期 |
2011.11.01 |
申请号 |
CA20032496882 |
申请日期 |
2003.09.04 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
HODSON, PETER D. |
分类号 |
A61M15/00;B65D83/44;A61M11/00;A61M16/20;B05B9/04;B65D83/14 |
主分类号 |
A61M15/00 |
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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