发明名称 |
Improved helium balloon lifting-gas |
摘要 |
<p>The risk of asphyxiation with helium used as a lifting gas for balloons is reduced by providing the helium as a breathable mixture with oxygen and 2 to 5 volume % carbon dioxide.</p> |
申请公布号 |
EP2153858(A1) |
申请公布日期 |
2010.02.17 |
申请号 |
EP20080162000 |
申请日期 |
2008.08.07 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
TASSELL, ANDREW DUNCAN;DOWNIE, NEIL ALEXANDER |
分类号 |
C01B23/00;A61M16/12;A63H27/10;B64B1/40;F17C1/00 |
主分类号 |
C01B23/00 |
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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