Trail safe alert system
US7019669B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 1, 2003 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Mar 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/164
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A pedestrian trail signaling device for warning users of the trail or path when an emergency vehicle is approaching the intersection. Emergency vehicles 14 have an actuatable transceiver that transmits a signal to the trail posted signaling device causing warning lights to flash and generation of a response signal informing the emergency vehicle operator that the trail posted signaling device has received the emergency vehicle transmission. A user transmitter having an on/off switch that broadcasts a signal to the trail signaling device causing the signaling device blinking yellow LED displays to blink A passive detector is provided whereby an emergency vehicle strobe light can trigger both flashing warning signals when the passive detector(s) is triggered. A motion detector 44 located on the trail user 16 warning light whereby either or both systems will flash their respective predetermined warning signals when the motion detector(s) is triggered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.