| 发明名称 |
Wall sleeve with damper opening upon air pressure difference |
| 摘要 |
<p>A wall incorporates an air vent that is opened and closed by pressure difference. The ventilator flap closure (5) is located within a pipe (2) and moves independently under air pressure against a spring (22).</p> |
| 申请公布号 |
EP1921394(A1) |
申请公布日期 |
2008.05.14 |
| 申请号 |
EP20070119461 |
申请日期 |
2007.10.29 |
| 申请人 |
NABER HOLDING GMBH & CO. KG |
发明人 |
NABER, HANS-JOACHIM;FRIEBEL, WOLF-CHRISTOPH |
| 分类号 |
F24F11/047 |
主分类号 |
F24F11/047 |
| 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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