Battery power pack and table lamp therefor
US6102549A · kind A · utility
11Cited by
2References
8Claims
0Family size
Inventors
Key dates
| Filing date | Mar 23, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Mar 23, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S9/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A portable lighting system comprised of a plug-in lamp and a rechargeable power pack having a single phone jack and two parallel circuits to the battery. When upright, a discharge circuit containing a mercury switch connects the battery to the lamp. When inverted, the discharge circuit is opened and the parallel circuit containing a diode allows current to only pass into the battery from the jack coupled to a battery charger. The system will provide light to table surfaces for commercial use such as restaurants, retirement homes as well as in private homes, such as for swimming pool areas and nurseries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.