Rail track surface structure
US6415988B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | May 23, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B2204/11
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rail track insert assembly for use in road-level railway crossings having a pair of rails secured to a rail bed, each of the rails having a gauge side and a field side, a rail base and an intermediate web and being adapted for limited vertical movement upon intermittent loading of the rail upon passage of a load on the rail, the assembly comprising a longitudinally extending flexible gauge side rail insert member having a top surface in the plane of the rail head and a bottom surface registering with the base of the rail, a rail-engaging side surface sealingly and fixedly registering with the web on the gauge side in order to move with the limited movement of the rail, and an opposite side surface including a planar surface inclined downwardly and outwardly away from the adjacent rail at a minor angle, a longitudinally extending center gauge panel comprising a rigid slab having a top planar road surface lying in the general plane of the top surfaces of the rails, a bottom surface engaging with the tie bed, and side surfaces including an inclined planar surface registering in tight compressive contact with the inclined planar surfaces of each of the first rail insert members when …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.