Step to safety
US4574916A · kind A · utility
1Cited by
8References
7Claims
0Family size
Inventors
Key dates
| Filing date | Jun 24, 1985 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Jun 24, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C9/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety step fire escape is provided and consists of a plurality of steps mounted in a vertical spaced relationship to an outside wall of a building adjacent windows of the building. The last step is elevated high enough from ground level so that a person can only climb down the fire escape. A descent cable extends through the steps to guide the person down the fire escape. A signaling device is operable by movement of the descent cable from its normal position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.