Perforated drainpipe for railway decks
US5275506A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1993 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Jan 8, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B11/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved railway deck drainage system includes an electrically non-conducting material formed into a plurality of hemiarcuate drain sections, each having a conduit and a coupling flange. The coupling flange of each section is matingly engaged with the conduit of the adjacent section, and the conduit is integrally coupled with a planar base to form a drain of overall hemicylindrical shape. The base of the drain extends transversely to form a pair of flanges suitable for weighting with ballast. A mounting strap couples the drain to the railway deck. Preferably, the conduit includes apertures to permit passage of water into the drain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.