发明名称 |
Vacuum cleaner having a filter |
摘要 |
A vacuum cleaner includes a filter, an optically sensitive filter replacement indicator associated with the filter, and a light source configured to provide light on the optically sensitive filter replacement indicator. The light source is variably energizable according to a selectable power level of the vacuum cleaner.
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申请公布号 |
US8479355(B2) |
申请公布日期 |
2013.07.09 |
申请号 |
US201113094895 |
申请日期 |
2011.04.27 |
申请人 |
KARA SEYFETTIN;KREIMEYER STEFAN;SEIFERT MONIKA;TIEKOETTER STEFAN;WOLF CORNELIUS;MIELE & CIE. KG |
发明人 |
KARA SEYFETTIN;KREIMEYER STEFAN;SEIFERT MONIKA;TIEKOETTER STEFAN;WOLF CORNELIUS |
分类号 |
A47L9/19 |
主分类号 |
A47L9/19 |
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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