Solar powered street lighting system
US4200904A · kind A · utility
118Cited by
11References
5Claims
0Family size
Inventor
Key dates
| Filing date | Apr 14, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Apr 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S136/291
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solar powered street lighting system that is totally independent of any external power supply. Solar panels are connected in such a manner to charge a maintenance-free storage battery with sufficient capacity to light street lights and/or traffic signals. An auxiliary generator may also be provided having a wind driven vane for also charging the battery if sufficient sun light is not available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.