Electro-thermal fire protection locking clip
US4219041A · kind A · utility
6Cited by
6References
14Claims
0Family size
Inventors
Key dates
| Filing date | Apr 14, 1978 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Apr 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1963
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A novel locking clip is disclosed for use with either fire or smoke dampers, which locking clip normally does not interfere with the operation of those dampers but, which under activation conditions, allows the blades of the damper to move into the desired position, but effectively prevents the blades from moving out of that position until fire conditions have passed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.