发明名称 |
Apparatus for a fire-rated duct |
摘要 |
A duct system comprising duct sections which are factory manufactured and field modifiable. The field modifiable duct system comprises fire resistant materials and is fire-rated. The duct sections when assembled create a continuous conduit that allows air to flow from a fresh air source to the required area of the building.
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申请公布号 |
US2005116470(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
US20030705967 |
申请日期 |
2003.11.13 |
申请人 |
DUFFY WILLIAM C. |
发明人 |
DUFFY WILLIAM C. |
分类号 |
A62C2/06;A62C3/00;F16L23/14;F16L25/00;F16L59/14;F24F13/02;(IPC1-7):F16L25/00 |
主分类号 |
A62C2/06 |
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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