Fire strip construction
US4916877A · kind A · utility
21Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1989 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Jul 3, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S52/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fire strip for a suspended grid ceiling has an inner spring steel web having a slightly arcuate cross section, and an outer web of soft steel wrapped around the inner web. A finished strip is formed by bending the strip normal to the strip body at both ends. When the ends are bent, a spring-like, yieldable, upwardly curved arch is formed which fits snugly against a panel when in place in a ceiling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.