| 发明名称 |
FIRESTOPPING APPARATUS WITH AIRFLOW-BLOCKING ELEMENTS |
| 摘要 |
<p>A firestopping apparatus including a sleeve with at least first and second airflow-blocking elements, with at least the first airflow-blocking element comprising a resiliently compressible body and being slidably movable generally along a long axis of the sleeve.</p> |
| 申请公布号 |
WO2014160353(A1) |
申请公布日期 |
2014.10.02 |
| 申请号 |
WO2014US26369 |
申请日期 |
2014.03.13 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
FEIL, WILLIAM, J., III;TILSTRA, ANDREW, H. |
| 分类号 |
A62C2/00;A62C3/00;A62C37/00 |
主分类号 |
A62C2/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
