Rail joint bars and rail joint assemblies
US7090143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | May 3, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B11/54
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rail joint assembly is provided for joining abutting railroad rails with an electrically-insulated joint. The rail joint assembly comprises abutting railroad rails compressing an insulating gasket therebetween and rail joint bars secured through a plurality of holes by fasteners to the adjacent railroad rails. The rail joint bars comprise a body and an insulating spacer comprising a porous mesh screen and washer. A layer of epoxy is sandwiched between a rail joint bar and railroad rail and comprises a rigid epoxy on lateral portions of a first side of a rail joint bar and a flexible epoxy placed on a central portion of the first side of a rail joint bar. Rail joint bars are rectangular shaped and may have a cutout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.