Non-powered trailed switch detector for railroad track switching equipment
US7134632B2 · kind B2 · utility
1Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jul 29, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L5/107
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus for sensing movement of a point rail away from a stock rail by a selected distance, by closing a switch to shunt a track circuit. Manual resetting of the point rail is required to reset the apparatus to open the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.