Patent ID: 6167936
Filing Date: 2001-01-02
Classification: E06B

Abstract:
A double-hung window assembly for residential or commercial buildings, the double-hung window assemby comprising: a window frame having a substantially rectangular shape and including a pair of spaced-apart side frame members, an upper end frame member connected to the pair of side frame members along end portions thereof, and a lower end frame member connected to the pair of side frame members along end portions thereof, the lower end frame member having an elongate cavity formed therein extending substantially the length of the lower end frame member, a cover member overlying the cavity, and an elongate opening formed in the cover member; at least two pairs of window guide tracks, each pair being positioned so that each guide track of the pair is connected to a respective one of the side frame members and positioned spaced-apart from the other guide track of the pair for guiding the opening and closing of at least two double hung windows; at least a pair of windows each respectively mounted to and positioned between at least one of the at least two pair of window guide tracks and being slidably movable along the guide tracks, one of the pair of windows being mounted to be slidably movable to an open position wherein lower peripheries of the window are spaced apart from the lower end frame member and a closed position wherein lower peripheries of the window abuttingly contact the lower end frame member so that the one window defines a lower window when in a closed position and another one of the pair of windows being mounted to be slidably movable to an open position wherein upper peripheries of the window are spaced apart from the upper end frame member and a closed position wherein upper peripheries of the window abuttingly contact the upper end frame member so that the other one of the pair of windows defines an upper window when in the closed position; and a rolling screen assembly positioned in the cavity of the lower end frame member, the rolling screen assembly having a roller mounted within the cavity, a rolled screen mounted to the roller so that the screen extends and retracts on the roller and mounted to the lower window so that the rolled screen extends and retracts through the elongate opening in the cover member and is guided into position by the pair of window guide tracks, at least one biasing member connected to the roller for biasing the rolled screen in a retracted rolled position, and tension adjusting means connected to the at least one biasing member for adjusting the tension in the at least one biasing member to one of a plurality of preselected levels and thereby responsively adjust the tension in the rolled screen mounted to the roller.