Indicating apparatus from preventing vehicles from colliding with each other as they pass
US5448219A · kind A · utility
23Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1994 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Nov 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/164
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An indicating apparatus for preventing vehicles from colliding with each other as they pass an intersection of roads includes a vehicle sensing device placed on one of the roads a predetermined distance from the intersection for sensing a vehicle approaching the intersection, an alarm indicating device placed at the predetermined point on the other road, and a control device for causing the alarm indicating device to indicate alarm when the vehicle sensing device detects a vehicle approaching the intersection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.