Combined tie extractor and plate remover for rail maintenance
US6755135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Sep 3, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B29/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A combined tie extractor and plate remover for railroad track maintenance includes a frame configured for movement along the track and having a first side corresponding to a first side of the track and a second side corresponding to a second side of the track, each side of the track having a corresponding rail. A rail lifting apparatus associated with the frame is configured for lifting a selected one of the first and second rails away from the track. A plate remover assembly associated with the frame is configured for grasping and removing tie plates associated with each side of the track from a selected tie. At least one tie extracting assembly is disposed on the frame for extracting the gripped tie transversely relative to the track in conjunction with the removal of the tie plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.