Photoluminescent emergency egress pathway marking system
US6307207A · kind A · utility
35Cited by
11References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1999 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2139
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An emergency egress system for a locus that is exposed to light in non-emergency use and susceptible to interruption or termination of light in emergency circumstances. The emergency egress system comprises a fibrous web deployed in the locus, wherein the fibrous web has photoluminescent fiber incorporated therein in sufficient amount and distribution to illuminate the web or predetermined portions thereof during the interruption or termination of light in emergency circumstances, and subsequent to light exposure thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.