Emergency lighting system
US7737640B2 · kind B2 · utility
22Cited by
6References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2008 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Nov 22, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/29
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an emergency lighting system comprising one or more first lighting elements and a power supply/charging unit that is incorporated in a host lighting fixture having one or more second lighting elements such as an HID, incandescent or fluorescent lamp. Optionally, a heating element can be provided that allows operation of the system in temperatures too low for operation of conventional emergency lighting systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.