Light flasher apparatus
US5252893A · kind A · utility
24Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Oct 3, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rechargeable electronic flasher powered by a solar panel and solar-rechargeable battery. The circuit has particular application as an auxiliary safety measure for use in roadway cats' eyes, or in memorial symbols for mounting on, or near, grave stones and the like so as to provide substantially perpetual illumination. Minimum charging time is necessary, while operation on battery power is extended to many days, rather than hours. The circuit can also be set to flash at a rate above the frequency the eye can distinguish, creating a substantially constant light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.