Screening apparatus
US7971726B2 · kind B2 · utility
3Cited by
20References
16Claims
0Family size
Inventor
Key dates
| Filing date | Jul 22, 2008 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Aug 6, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F7/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A screening apparatus for processing excavated material from a ditch into fines and roughs is disclosed. The screening apparatus includes an inclined lift conveyor for moving the excavated material upward and depositing the excavated material onto a convex vibrating screen surface. A transfer conveyor having an arcuate belt path as disposed below the separator for introducing the fines to the excavation. The separator includes a reversible motor for providing a first vibration and a second vibration to the separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.