Reinforced shutter panel
US5515902A · kind A · utility
Inventor
Key dates
| Filing date | Nov 4, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Nov 4, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/1583
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shutter is formed of a number of horizontally elongated slats which are pivotally connected together along their adjacent elongated edges so that shutter may be rolled up to expose, or rolled down, to form a panel covering an opening in a building wall. The slats are formed of roughly rectangular in cross-section hollow extrusions having upper and lower edges. Notches are formed in the upper and lower edges to provide upperwardly and downwardly extending tongues on each of the slats. The tongues fit into the notches of the next adjacent slat for overlapping the adjacent tongues. An upwardly extending flange having a hook formation on its end, is formed on the upper edge of each slat and fits into the notch of the lower edge of the next upper slat and pivotally engages a corresponding hook formed on the upper slat. A rigid, elongated insert, formed of a substantially stronger material than the slat material, is snugly fitted within the hollow interior of the slat. The insert is formed in the shape of the interior of the slat and has flange portions that extend into the upper and lower tongues of the slat. The bands of overlapped tongues and the inserts reinforce the slat to resist…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.