Fastener for supporting railroad ties
US7690584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2006 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Sep 4, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B9/303
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fastener for supporting a rail on a railroad tie using clips, includes an abrasion plate having an upper surface, and being constructed and arranged to fit on the railroad tie; a rail pad having a lower surface and being constructed and arranged to fit on said abrasion plate with said lower surface facing and contacting said upper surface and to support the rail; a pair of insulators disposed on said rail pad, said insulators being configured to receive the clips when the fastener is installed and to insulate said fastener from said clips; and coupling means integrally formed on one of said abrasion plate and said rail pad to hold said pair of insulators prior to the installation of the fastener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.