US Patent 7685775 Combined sealing systems for sliding door/window

A combined sealing system for connecting a panel to a frame includes a first sealing system and a second sealing system. The first sealing system connects a first surface of the panel to a first surface of the frame, and the second sealing system connects a second surface of the panel to a second surface of the frame. The combined sealing system has an unlocked configuration and a locked configuration. In the unlocked configuration, the panel moves relative to the frame along a plane substantially parallel to a longitudinal axis of the first or second surfaces of the frame. In the locked configuration, each of the first and second sealing systems separately prevent movement of the panel relative to the frame along the plane.