发明名称 |
IMPROVED FIRE COLLAR |
摘要 |
A fire collar (10) including a housing defining an opening (18) and a passage (20) adapted to receive a conduit therethrough. A layer of intumescent material (43) surrounds the conduit and is supported by the housing adjacent the opening. Torsion springs (34) are mounted between the housing and the intumescent material to surround the conduit and are held in a non-operational position by fusible links (41). When the heat of a fire melts the links, each torsion spring acts in a longitudinal plane of the passage to assist the intumescent material to collapse the conduit and seal the passage against advancement of the fire. |
申请公布号 |
EP1812740(B1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20050786855 |
申请日期 |
2005.09.26 |
申请人 |
IG6 PTY LTD |
发明人 |
TRUSS, JAMES, WALTER, GEORGE |
分类号 |
F16L5/04;A62C2/06;E04B1/94 |
主分类号 |
F16L5/04 |
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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