| 发明名称 |
Method and apparatus for reducing the size of elongate particulate material in a vacuum cleaner head |
| 摘要 |
A vacuum cleaner head is provided with cutting elements positioned in the air flow path of the vacuum cleaner head to reduce the size of elongate particulate material entering the dirty air inlet.
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| 申请公布号 |
US6170119(B1) |
申请公布日期 |
2001.01.09 |
| 申请号 |
US19990322988 |
申请日期 |
1999.06.01 |
| 申请人 |
FANTOM TECHNOLOGIES INC. |
发明人 |
CONRAD WAYNE ERNEST;HAMILTON SCOTT |
| 分类号 |
A47L5/22;A47L5/30;A47L9/04;(IPC1-7):A47L9/00 |
主分类号 |
A47L5/22 |
| 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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