Railroad frog
US5312075A · kind A · utility
3Cited by
8References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1991 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Dec 13, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B7/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A railbound manganese frog assembly having ramps and grooves adapted to receive the false flange formed on the rim of a worn railroad car wheel to prevent the flange from impacting components of the frog assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.