Rail ballast management and tie guide ski for use with rail tie exchanger
US12152349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2021 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Sep 28, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B29/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rail ballast management and tie guide ski is provided for use with a rail tie exchanger machine moving along a railroad track. The assembly includes a workhead frame configured for attachment to the tie exchanger, the workhead frame having a vertically oriented sleeve defining a cavity, a tie ski having a generally planar tie engaging surface, an opposite upper surface, a connection point at each of two free ends, and a mounting lug is dimensioned for slidably engaging the cavity, and is pivotally connected to the tie ski. Also connected to said tie guide ski assembly is a pair of fluid power cylinder assemblies, one said cylinder assembly connected to a respective connection point at a first end, and to the sleeve at an opposite second end, such that selective pressurization of said fluid power cylinder assemblies causes reciprocal movement of said tie ski relative to said sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.