发明名称 |
DEVICES FOR THE FIRE STOPPING OF PLASTICS PIPES |
摘要 |
A device for shutting-off a plastics pipe in the event of a fire comprises a sheath of a flexible refractory fabric around a portion of the pipe within or adjacent a fire-resisting partition such as a wall or floor. A spring is placed under tension around the fabric and acts to radially constrict the pipe and sheath, when the pipe softens in the event of a fire. Upon subsequent burning, the burnt plastics forms a foam-like carbon mass which plugs the constricted sheath. |
申请公布号 |
DE3562522(D1) |
申请公布日期 |
1988.06.09 |
申请号 |
DE19853562522 |
申请日期 |
1985.01.16 |
申请人 |
FIRE RESEARCH PTY. LIMITED |
发明人 |
WEXLER, JONATHAN B. |
分类号 |
F16L5/04;(IPC1-7):F16L5/02;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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