Convertible window assembly

A method of transporting a convertible window system, the convertible window system comprising a first sash, a second sash, a weatherstripping assembly for retaining the first and second sashes, a frame for retaining the weatherstripping assembly, at least one tilt pivot assembly associated with the first sash defining an axis of rotation of the first sash relative to the frame, and slidably interconnected with the weatherstripping assembly, and means for retaining the tilt pivot assembly to the frame to prevent sliding of the first sash relative to the frame, said method comprising the steps of:

• inserting at least one means for retaining through the tilt pivot assembly and into the frame or the weatherstripping assembly;
• transporting the convertible window system to a target destination;
• and
• removing the means for retaining to allow sliding of the first sash relative to the frame.

A window system comprising:

• a frame with an indoor face and an outdoor face and a left side and a right side;
• a weatherstripping assembly having a longitudinal axis and comprising a left portion defining a left channel attached to said left side of said frame, a right portion defining a right channel attached to said right side of said frame;
• a first and second sash;
• said second sash is operatively engaged with said weatherstripping assembly and is slidable in relation to said weatherstripping assembly in the direction of the longitudinal axis and tiltable relative to said weatherstripping assembly in a direction generally outwardly from said indoor face of said frame;
• said first sash is attached to a left-side and a right-side tilt pivot assembly, the left-side tilt pivot assembly operatively engaging said left channel of said left portion of said weatherstripping assembly for sliding and pivoting movement, the right-side tilt pivot assembly operatively engaging said right channel of said right portion of said weatherstripping assembly for sliding and pivoting movement, said first sash pivoting in a direction generally out from said indoor face of said frame;
• said left and right channels of said weatherstripping assembly each comprise a retaining region, and at least one of a free region or a resistance region, all of the regions being longitudinally spaced along the longitudinal axis from each other;
• and
• wherein, when a portion of said first sash is contiguous with said retaining regions of said left and right channels, said first sash may not pivot relative to said weatherstripping assembly.