Riding sweeper
US4173052A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1977 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Nov 17, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/40
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A riding power sweeper with an improved dumping mechanism for emptying a hopper is provided. The hopper is pivotally supported at the front of the machine and a pair of fluid-operated rams raise the hopper and pivot it over the front. The hopper also has a unique air distribution system including a filter through which air is drawn from an opening communicating with a drum brush. Means forming a separate chamber is located in the hopper and holds the filter, and dirt from the filter is caught therein. The chamber-forming means is also pivotally supported so as to swing outwardly to be emptied when the hopper is raised. The drum brush has a unique design for adjusting and positioning the brush with a single linkage mechanism both applying pressure and adjusting the brush for wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.