Rail fastening means
US4943006A · kind A · utility
3Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1985 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Jul 3, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B9/306
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sleeper having two pairs of protuberances upstanding from its upper portion, the protuberances of each pair defining between them a rail seat, apertures in the upper wall of the sleeper which extend from the protuberances for a short distance away from the rail seat, four U-shaped clips engaging each sleeper, each U-shaped clip having an upper toe, which bears downwardly on the upper portion of the rail, a heel engaging the upper surface of the sleeper adjacent the relevant aperture, and a lower toe extending through an aperture in the rail and bearing upwardly against the undersurface of a respective protuberance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.