Concealed safety lighting device
US7118235B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 24, 2004 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Jun 24, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/802
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A concealed safety light is described where the light source is integrated and mounted into a switch or power outlet wiring device form factor (20,21,22) to replace conventional electric wiring devices. The light source (10) is controlled by a power and control circuit (90, 790) that derives power from the primary power supply or an alternate power supply. The circuit can detect light levels and turn on the light source when it is dark and also detect power failures to turn on the safety light in the event of a power failure using the alternate power supply The safety light is also capable of responding to an alarm condition from other systems. The resulting safety light is conceyaled in a standard wiring junction box and trimmed with a wall cover plate in the same way as conventional electric wiring devices, allowing it to be concealed while in plain view and provide safety lighting in a variety of ways including power failure, night light and alarm conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.