US Patent 10544621 Roller shade system

A roller shade system comprising a covering material windingly coupled to a roller tube such that rotation of the roller tube causes the covering material to be raised or lowered. A mechanism is coupled to the roller tube to rotate the roller tube and a level adjuster is attached to each end of the roller tube. The level adjuster includes a baseplate with a leveling bar pivotally coupled to the baseplate. A valance assembly to enclose the roller tube, mechanism, and level adjuster, while permitting the fabric through an opening is also provided.