Solar-powered wireless crosswalk warning system
US7317405B2 · kind B2 · utility
17Cited by
54References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2004 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Dec 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1089
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A solar-powered crosswalk warning system is disclosed. The crosswalk warning system comprises two or more crosswalk warning beacons, located on opposite sides of the road. Each beacon comprises a solar panel to recharge a battery, a battery back, a control unit to charge the battery pack during daylight hours, a communication unit to communicate to the second crosswalk beacon, a traffic signal lamp ton warn oncoming traffic, and a triggering means by which the pedestrian can activate the beacons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.