A pleated roller shade system allows a thin flexible shade fabric, such as, for example, silk, to be wrapped around a roller tube. The system comprises a pleating bar mounted parallel to the roller tube and having a fabric-receiving opening that defines, for example, a serpentine path. The shade fabric...http://www.google.se/patents/US7802609?utm_source=gb-gplus-sharePatent US7802609 - Roller shade system having a pleated fabric
