released a suspension cord the biasing mechanism is loaded when the suspension cord is drawn by a user to lift the window covering when the suspension cord is released movement of the cord is stopped by the arresting mechanism and the biasing mechanism unloads to further move the light blocking element application_number US 23825405 A description referring now to the drawings fig1 and 2 depict a top down style window covering comprising a head rail 15 and a light blocking element 18 the light blocking element 18 may include one or more closure panels movable to allow and block light passage and which may take the form of a honeycomb panel a roman style shade a venetian blind or the like the light blocking element 18 also includes a top portion such as top rail 16 and a bottom portion such as bottom rail 17 it should be recognized that while the depicted embodiments show a top rail 16 and bottom rail 17 they are not strictly necessary and can simply be the top and bottom portions of the light blocking device a suspension cord 19 for controlling the deployment of light blocking element 18 is connected at one end to the top rail 16 and passes through openings 30 in the head rail 15 the suspension cord 19 also operatively engages the suspension cord control mechanism the suspension cord control mechanism.