Method and apparatus for detecting an approaching train by detecting a brake system status signal
US5735491A · kind A · utility
12Cited by
17References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1996 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Oct 9, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L29/246
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus for detecting the presence of an approaching train, includes a warning indicator, a receiver for receiving a brake system status signal transmitted from an approaching train, and a relay for coupling a voltage potential to the warning indicator when the brake system status signal is received by the receiver, wherein the warning indicator, the receiver and the relay are positioned within a passenger vehicle. Also there is a method for detecting the presence of an approaching train by detecting a brake system status signal originating from the train.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.