Patent ID: 8136568

Claim:
A retractable window covering for covering an arched window, the window covering comprising: an arched track having an interior groove, a first end and a second end; a carriage slidably mounted to the interior groove and movable between the first end and the second end; a shade member having an upper rail and a lower rail with a shade extending therebetween, the upper and lower rails each having an inner end and an outer end, the outer end of the upper rail attached to the carriage, the shade member configured to move between a first fully retracted position and a second fully extended position; and a hub engaging the inner end of the lower rail, said hub having the capability of allowing the inner end of the lower rail to move toward or away from first end of the arched track, the hub configured to push the lower rail outward toward the first end of the arched track when the shade member is in the fully retracted position, allow movement of the lower rail away from the first end as the shade member is moved from the fully retracted position toward the fully extended position, and move the lower rail toward the first end as the shade member nears the fully extended position.