Sweeping apparatus
US4811442A · kind A · utility
9Cited by
4References
4Claims
0Family size
Inventor
Key dates
| Filing date | Mar 21, 1988 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Mar 21, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/056
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved sweeping machine. The machine includes a main frame. A plurality of ground engaging wheels are mounted on the frame. A cylindrical brush is rotatably carried in a support assembly. A pair of elongate linkage members pivotally interconnect the support assembly and the main frame. One of the elongate linkage members is connected to the main frame and brush support assembly at pivot points having a greater elevation than the pivot points of the other linkage member. The sweeping machine of the invention permits the brush to initially rebound away from the ground when the brush begins to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.