Rail tie replacement method and apparatus
US6463858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2001 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Mar 16, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B29/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rail tie replacement apparatus that includes a frame having a first side associated with a first side of a railroad track, and a second side associated with a second side of a railroad track; gripping mechanisms disposed on each of the sides of the frame and configured for grasping rail ties located in the track; and extending members attached to the gripping mechanisms and the frame. The extending members include a first extending member and a second extending member in a non-axial relationship to each other, and configured for positioning the gripping mechanisms relative to the rail ties. The apparatus further includes fluid powered cylinders attached to the extending members and the frame that are configured to facilitate the reciprocal movement of the extending members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.