Single-layer interchange overpass
US7473050B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 25, 2004 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jul 13, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C1/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention discloses a single layer interchange overpass. The overpass comprises a main road (1) and an intersected road (3), a U-shaped circle road (24) is disposed at a predetermined level above both ends of the main road (1), an inner circle road (4) and an outer circle road (5) are disposed at the exit of each U-shaped circle road (24), a common ramp (7) is located between the inner and the outer circle roads (4, 5), the common ramp (7) is joined with an on-ramp of the intersected road (3) via the outer circle road (5); and an off-ramp of the intersected road (3) is joined with an on-ramp of the main road (1) via the inner circle road (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.