Patent ID: 6782937
Filing Date: 2004-08-31
Classification: E06B

Abstract:
A covering for an architectural opening comprising in combination:a frame adapted to be positioned in said architectural opening in surrounding relationship therewith, a collapsible curtain mounted in said frame and adapted to be moved between a retracted position adjacent a side of the frame and an extended position across the architectural opening, an operating system for moving said curtain between the extended and retracted positions, said operating system including a cord operating system and a transfer system, said cord operating system including a plurality of lift cords operatively connected to said curtain and a spool associated with each of said lift cords such that rotation of said spools causes the lift cords to be wrapped on or unwrapped from an associated spool while moving the curtain between the retracted and extended positions, said transfer system including an endless non-extensible element adapted to be moved in a closed loop, and an operating element connecting to said endless element for moving maid endless element in said closed loop, said endless element being operatively connected to said spools to rotate said spools in response to movement of said endless element in said closed loop, and said curtain including an elongated hollow bottom rail with an end cap in each of its opposite ends, and wherein said lift cords are operatively connected to said curtain by attachment to said end caps.