发明名称 |
Vacuum cleaner |
摘要 |
A vacuum cleaner includes an optical dust sensor for detecting a quantity of dust which sensor is provided at a predetermined position of a suction path for sucking air by a suction force of the vacuum cleaner, whereby an output signal is supplied to a display device so that a display corresponding to the quantity of the sucked dust, which signal is output from the optical dust sensor and is varied in a stageless manner corresponding to the quantity of the dust.
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申请公布号 |
US6055702(A) |
申请公布日期 |
2000.05.02 |
申请号 |
US19980150027 |
申请日期 |
1998.09.09 |
申请人 |
YASHIMA ELECTRIC CO., LTD. |
发明人 |
IMAMURA, NOBUO;YOSHIKAWA, JUN |
分类号 |
A47L9/19;A47L9/28;(IPC1-7):A47L9/28 |
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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