发明名称 |
Fire collar |
摘要 |
A fire collar or fire damper for location within a concrete slab of a building. The device incorporates a damper arrangement (12) and a heat detector (18, 19) comprising a metal alloy or lead which melts when a preset temperature is reached, causing the damper arrangement to seal off associated pipework or ducting.
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申请公布号 |
US2005022868(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20040488746 |
申请日期 |
2004.09.13 |
申请人 |
TRUSS JAMES WALTER GEORGE |
发明人 |
TRUSS JAMES WALTER GEORGE |
分类号 |
A62C2/24;A62C2/06;A62C2/12;F16L5/04;F16L55/10;(IPC1-7):F16K17/38 |
主分类号 |
A62C2/24 |
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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