Surface treating head
US8387207B2 · kind B2 · utility
11Cited by
21References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jun 16, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0646
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A surface treating head includes a main body, a suction cavity in the main body including first and second suction channels, each of which is bounded on one side by a working edge, an air duct interposed between the first and second suction channels for conveying air towards the working edges, a brush unit and a drive mechanism for moving the brush unit between a stowed position in which the air duct is open to the atmosphere and a deployed position in which the air duct is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.