Patent ID: 6684930
Filing Date: 2004-02-03
Classification: E06B

Abstract:
A window covering mounted in a window frame, the window covering comprising:a head rail; a bottom rail; a window covering material extending between the head rail and bottom rail; at least one lift cord extending between the head rail and the bottom rail; a first biasing element operatively coupled to the at least one lift cord and configured to bias the bottom rail toward the head rail; a first guide cord having a first end coupled to the window frame and at least partially located in the bottom rail; a brake mounted in the bottom rail and being adapted to move between an engaged position wherein the brake engages a portion of the first guide cord to prevent the first guide cord from sliding within the bottom rail and to prohibit the bottom rail from being raised and lowered, and a disengaged position wherein brake is disengaged from the first guide cord to allow the first guide cord to slide within the bottom rail and to allow the bottom rail to be raised and lowered.