Grooved rail core piece
US7309050B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 10, 2004 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | Feb 15, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B7/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A grooved rail core piece including a core piece intersection area formed by intersecting grooves as an overflow area. The core piece has two construction profiles with interconnected outer fishing surfaces (22,24) extending in a longitudinal direction. In order to enable the intersection area of the core piece to be renewed in a simple manner, the intersection-point area of the core piece includes an interchangeable insert (36) which is arranged in a recess in an at least positive fit, the recess being defined by the sections of the construction profiles and by the sections of the lining parts (30,32) disposed in the outer fishing surfaces (22, 24), and the insert is fixed by means of at least two wedge elements (38, 40) which can be clamped in the lining parts. The lining parts and the construction profiles are connected by means of at least one clamping element protruding there through in a non-positive fit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.