Tamping tools
US4606275A · kind A · utility
Inventor
Key dates
| Filing date | Nov 27, 1985 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Nov 27, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B27/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Tamping tools for mounting in a ballast tamping apparatus such as the rail-mounted Canron, Plasser and Jackson ballast tamping machines designed for tamping ballast around railroad cross ties, which tamping tools each include a shaft adapted for mounting on a reciprocating mechanism in a respective ballast tamping machine, a shaped shank extending from the shaft, a weld ring or nut seated on the shank and welded to the shaft and a tool foot having a receptacle internally configured to receive the shaped shank, with the tool foot welded to the weld ring or nut for easy replacement. A blade is provided at the extending end of the tool foot in offset relationship for contacting and tamping the ballast and in a first embodiment the blade is formed integrally with the foot, while in a second embodiment the blade is bolted to the tool foot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.