Tessellated cylindrical brush
US6449793B2 · kind B2 · utility
10Cited by
23References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Sep 10, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4061
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sweeping machine for picking up debris from a surface includes a frame and wheels attached to said frame to support the frame of the sweeping machine over the surface being swept. A cylindrical brush is rotatably attached to said frame. The cylindrical brush includes a tubular main body and tufts attached to said tube such that the tufts extend radially outward from said tube. The tube has regions devoid of tufts bounded by regions having tufts. The sweeping machine also includes a mechanism for rotating said cylindrical brush.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.