发明名称 |
SHOCK RESISTANT HIGH EFFICIENCY VACUUM CLEANER FILTER BAG |
摘要 |
<p>There is provided a vacuum cleaner bag with high fine particle removal efficiency under normal and shock loading conditions, shock loading including a short term challenge with high particle concentrations (e.g., when a vacuum is used to pick up a pile of debris). The bag also exhibits high loading capacity without significant loss in pressure drop. The bag includes an outer support layer, a fibrous filter layer that is charged to create electrets, and an inner diffusion layer that is substantially unbonded to the filter layer, except at necessary bag seams required for assembly of the filter bag.</p> |
申请公布号 |
EP0822775(B1) |
申请公布日期 |
1999.01.07 |
申请号 |
EP19960911433 |
申请日期 |
1996.03.27 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
ZHANG, ZHIQUN;WINTERS, JOHN, C. |
分类号 |
A47L9/14;(IPC1-7):A47L9/14 |
主分类号 |
A47L9/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|