US Patent 7685776 Sealing system for sliding door/window

A sealing system connects a panel to a frame and includes an anchor and a pair of opposing docking collars. The anchor extends from the frame or panel, and the opposing docking collars are disposed within a guide portion in the other of the frame or panel. The 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 anchor. In the locked configuration, the anchor is positioned between the docking collars, and the anchor is engaged by the docking collars to prevent movement of the panel relative to the frame along the plane.