Street sweeper with litter hose
US7424767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2004 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Mar 20, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/0854
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a street sweeper for collecting debris from a street surface. The street sweeper includes a chassis mounted on wheels, a rotating broom for removing debris from a street surface, and a hopper for collecting the removed debris. A passageway extends between the broom and the hopper to transfer the debris removed from the street surface. To remove debris from areas difficult to access with the rotating broom, the street sweeper also includes a litter hose connected to an air flow generating device that communicates with the hopper. The airflow generating device provides a suction force within the litter hose for removing debris and discharges that debris into the hopper. The airflow generating device and suction force work independently of the internal conditions of the hopper. In an embodiment, the airflow discharged into the hopper can exhaust through the passageway extending between the broom and the hopper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.