Flangeway former and rail boot system
US8172158B1 · kind B1 · utility
9Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Mar 8, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C9/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flangeway former and rail boot system where the flangeway former has an anchor for anchoring the former in surrounding material, and a groove for receiving a protrusion on the rail boot for positioning the former on the boot. The system can also include a spacer and retaining clips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.