Patent ID: 6918425
Filing Date: 2005-07-19
Classification: E06B

Abstract:
1. An adjustment device for a Venetian blind connected to a window sill comprising: a) a lower beam having a fixing hole located through a top and a bottom of each of two opposing ends thereof; and b) two retaining devices, each of the two retaining devices having: wherein an end of each of two retaining cords of the Venetian blind is inserted through the fixing hole in the top of one of the two opposing ends of the lower beam, through the plurality of alternating left and right blades, through the fixing hole in the bottom of one of the two opposing ends of the lower beam, and connected to a bottom of the window sill, the lower beam being movable along a length of the two retaining cords and held in a predetermined position by friction forces created by the two retaining devices.