Methods for repair and preventive maintenance of railroad ties using UV curable polymers
US9068294B2 · kind B2 · utility
0Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2010 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Oct 12, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B31/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for repair and preventive maintenance of railroad ties by application of a polymer system to the surface of the rail seat. The polymer system is cured by irradiation with ultraviolet light to fully cure or partially cure the polymer. The polymer system may be used in conjunction with a tie pad that is capable of transmitting ultraviolet light to permit curing of the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.