发明授权
US06170119B2 Method and apparatus for reducing the size of elongate particulate material in a vacuum cleaner head
有权
用于减小真空吸尘器头部中细长颗粒材料尺寸的方法和装置
- 专利标题: Method and apparatus for reducing the size of elongate particulate material in a vacuum cleaner head
- 专利标题(中): 用于减小真空吸尘器头部中细长颗粒材料尺寸的方法和装置
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申请号: US09322988申请日: 1999-06-01
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公开(公告)号: US06170119B2公开(公告)日: 2001-01-09
- 发明人: Wayne Ernest Conrad , Scott Hamilton
- 申请人: Wayne Ernest Conrad , Scott Hamilton
- 主分类号: A47L900
- IPC分类号: A47L900
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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