Collapsible bridge and method of laying same
US6918152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2003 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Sep 15, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D19/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A collapsible bridge and laying method for a collapsible bridge where bridge girders are pushed over an obstacle by way of a laying beam positioned in front of the obstacle to be bridged. Rollers and roller carriers carrying the rollers are fastened to the bridge girders, the rollers running in rails arranged on the laying beam. During the laying operation, the rollers with the pertaining roller carrier leaving the rail of the laying beam are removed from the bridge girder and are mounted again at a different point of the bridge girder which is momentarily situated in front of the entry into the rail of the laying beam. This process of using and removing the rollers from the bridge girder is repeated during laying of the bridge. The bridge girder can include a plurality of detachably connectible bridge girder sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.