| 发明名称 |
COVER ASSEMBLY FOR A THROUGH-PENETRATION |
| 摘要 |
A fire stopping apparatus for fire stopping a through-penetration (6) includes fire stop material (3) arranged within the through-penetration, a frame (14) arranged adjacent the top opening of the through-penetration, and a plurality of slats (16) arranged on the frame adjacent the through-penetration top opening.
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| 申请公布号 |
CA2505908(C) |
申请公布日期 |
2011.07.19 |
| 申请号 |
CA20032505908 |
申请日期 |
2003.10.07 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
CORDTS, BRANDON L.;MILLER, STEPHEN A.;REIER, MATTHEW D. |
| 分类号 |
F16L5/04 |
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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