Rail seal
US4606498A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1984 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Aug 23, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C9/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention provides a seal for rails in a road level railbed comprising inner and outer resiliently flexible elongate members secured about each rail. The seal members are contoured to fit snugly against the inner and outer sides of a rail and are provided with a flexible membrane accommodating rail spike heads. The inner members have a groove to allow clearance of the flange of a railcar wheel and a flexible membrane extends beneath the groove. Movement of the flexible membrane in response to the railcar wheel flange breaks up silt and detritus which has a tendency to settle and pack hard in the flange groove. The movement of the flexible membrane also allows for deicing in the winter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.