Methods and systems for verifying the operation of a railroad gate
US7789348B2 · kind B2 · utility
7Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2007 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Feb 23, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L29/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for verifying the operation of a railroad gate is provided. The system includes a tilt device for measuring a tilt of the railroad gate and a controller coupled to the tilt device. The controller is selectively operable in a calibration mode and a monitoring mode. In the calibration mode, the controller measures a predetermined tilt of the railroad gate. In the monitoring mode, the controller measures a current tilt of the railroad gate to determine deviations between the current tilt and the predetermined tilt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.