Lighted wind cone for evacuation aid
US4486754A · kind A · utility
3Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1982 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Jan 25, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B5/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An evacuation aid for a high rise building comprising a wind cone lighting device which can be operated for a substantial period of time under emergency power conditions such as from a battery supply. The wind cone is lighted by a single light rotating with the wind cone and powered through slip ring assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.