Chain driven conveyor having automatic tensioning street sweeping method and system
US7520378B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2004 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Jun 11, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/042
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed herein is a street sweeper having a vertical chain driven conveyor apparatus. The vertical chain driven conveyor apparatus is provided with a jointed shaft to compensate for chain wear over the life of the chains. The vertical chain driven conveyor apparatus is provided with an automatically adjusting chain tension adjustment system. The vertical chain driven conveyor apparatus is provided with locking adjustment mechanism to prevent the chains from losing tension when the sweeper is turned off. An initialization program is operable to restore chain tension when the street sweeper is started and prevent sweeping operations until a desired chain tension has been indicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.