Emergency light
US7220010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Aug 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An emergency light for providing illumination during emergency conditions with a housing, a light source, and a drive arrangement for driving the light source between retracted and extended positions. Flanges, which can be removable, can project from the housing. Fastening arrangements each comprising a mounting bolt in combination with a locking clip can retain the emergency light in relation to a support surface. A motor in combination with a drive screw threadedly engaged with the light source can form the drive arrangement to produce an axial movement of the light source. A limit switch can sense a position of the light source, and a reflector can guide light from the light source. An emergency condition sensor can trigger an extension and illumination of the light source. A battery can power the light during a power failure. Plural lights and a central control unit can form an emergency lighting arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.