Solar powered yard marker
US4843525A · kind A · utility
44Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Jan 11, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S136/291
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solar powered illuminated yard maker including a solar powered battery recharging network that recharges a storage battery at a constant rate and can be selectively operated to burn continuously to produce a continuous light or to burn intermittently to provide a flashing light. A solar cell recharges the storage battery in the light when sunlight is impinging upon the solar cell to provide virtually maintenance free and long term operation of the illuminated yard marker during the dark or twilight hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.