Pivotal and adjustable closure vertical rail louver system
US5347756A · kind A · utility
12Cited by
11References
12Claims
0Family size
Inventors
Key dates
| Filing date | Apr 12, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Apr 12, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B7/086
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An adjustable closure rail system is provided with a fixed top rail and a fixed bottom rail and a plurality of pivotal louvers mounted therebetween on friction free spindles and bushings. Each said louver is provided with a pivot link mounted in the top end of said louvers and is offset from the spindles or bushings which pivotally mounts said louvers. And a universal link bar is provided for cooperating with each of the pivot links so that pivotal force movement of one of said vertical louvers imparts the same pivotal force motion via said pivot links and said universal link bar to each of said other louvers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.