发明授权
- 专利标题: Blower vacuum device of improved design
- 专利标题(中): 鼓风机真空装置设计改进
-
申请号: US613566申请日: 1996-03-11
-
公开(公告)号: US5659920A公开(公告)日: 1997-08-26
- 发明人: Craig Webster , John Sadler
- 申请人: Craig Webster , John Sadler
- 申请人地址: DE Newark
- 专利权人: Black & Decker Inc.
- 当前专利权人: Black & Decker Inc.
- 当前专利权人地址: DE Newark
- 优先权: GBX9504972 19950311
- 主分类号: A47L5/14
- IPC分类号: A47L5/14 ; A47C9/32
摘要:
A blower vacuum device of the kind having a motor (2) which is located in a housing (4) and which drives an impeller (12) located in a the volute (16). The volute (16) has an air inlet (18) and an air outlet (20). When the device is used as a blower a blower attachment (28), formed in a single piece from a blower duct (28) and a grill (22), is releasably attached to the volute so that the grill (22) is attached over the air inlet of the volute and the blower duct (28) is attached over the air outlet. When the device is used as a vacuum, a vacuum attachment (36) which is formed in one piece from a suction duct (30) and a collecting bag duct (34) is releasably attached to the volute so that the suction duct (30) is attached over the air inlet and the collecting bag duct (34) is attached over the air outlet. This means that it is easy to change the device between a blowing mode and a vacuum mode by detaching a single piece blowing attachment from the device and replacing it with a single piece vacuum attachment.
公开/授权文献
- US4593405A Loudspeaker system with combination crossover and equalizer 公开/授权日:1986-06-03
信息查询