Threshold having safety lights
US7339488B2 · kind B2 · utility
7Cited by
15References
4Claims
0Family size
Inventors
Key dates
| Filing date | Nov 28, 2005 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Jun 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B7/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An emergency light system is located in the threshold subadjacent to the lower edge of an emergency egress door. The light system includes a plurality of lights mounted on a flexible backing strip in the threshold. The lights are connected to a switch that can be manually operated or operated by a sensor in a fire and/or smoke detection system associated with a room. The lights will be visible to a person crawling on the floor even if there is smoke in the room. The lights are easily installed in the threshold and will not be subject to abuse that might occur if the lights were mounted on the door itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.