Patent ID: 8245756

Claim:
A collapsible window covering capable of height adjustments, comprising: an upper elongated support having a longitudinally extending channel; a collapsible member coupled to said upper elongated support; a lower elongated member coupled to said collapsible member; a first primary line coupled to said lower elongated member and extends through a length of said collapsible member; a counterbalancing mechanism having a first and second rotary members, and wherein the counterbalancing mechanism is disposed within said longitudinally extending channel; a first secondary line having a distal end coupled to said first primary line and a proximal end leading into said counterbalancing mechanism; a pulley assembly having a first rotor and a second rotor wherein said first primary line is entrained about said first and second rotors; and wherein said counterbalancing mechanism has a spring coupled to said first rotary member thereby urging said first rotary member to rotate in a winding direction to wind and store said first secondary line onto said first rotary member.