Patent ID: 7650922

Claim:
A window treatment for an arch-shaped window comprising: a frame having an arch portion and a horizontal portion; at least one shade panel pivotally connected to a central portion of the horizontal portion of the frame; at least one channel formed on an inner surface of the arch portion, wherein the at least one channel forms a longitudinal slot on an inner surface of the arch portion of the frame adjacent the shade; a chain at least partially housed within the at least one channel and moveable therein for effectuating arcuate movement of the at least one shade panel between an open and a closed position, wherein the chain is configured and dimensioned to move within the at least one channel without falling out of the longitudinal slot and further wherein the chain is positioned in the arch portion of the frame and not in the horizontal portion of the frame; and a separate guide track formed on the arch portion adjacent the at least one channel, wherein the separate guide track comprises a second longitudinal slot on the inner surface of the arch portion of the frame adjacent the shade, wherein the separate guide track holds at least one guide pin connected to the at least one shade panel, wherein said at least one guide pin is movable in the separate guide track.