Patent ID: 7905452

Claim:
A window frame for installation in an exterior shell of an aircraft, the frame comprising: an outer flange; an inner flange; a vertical flange; a window element; wherein the vertical flange extends between the outer and inner flanges, the outer flange being adapted for forming a connection to an aircraft structure, for connecting the window frame to the aircraft structure, the window element abutting against at least one of the inner flange and the vertical flange; and a plurality of holder elements, each holder element of the plurality of holder elements comprising: a base plate having a first face with a pin extending outwardly from the first face of the base plate, the pin having an outer circumferential surface including a plurality of sawtooth structures, and having a second face, facing opposite from the first face, in direct contact with a surface of the outer flange of the window frame and fixed on the surface of the outer flange of the window frame, wherein the base plate with the pin is a first individual part of the holder element; and a downholder clip having an outer clamping end and a plurality of inner flexible clamping elements, the plurality of inner flexible clamping elements retainably engaging the plurality of sawtooth structures of the pin of the base plate when the downholder clip is press fit on the pin, such that the plurality of inner flexible clamping elements of the downholder clip form a locking snap connection with the plurality of sawtooth structures of the pin, wherein the downholder clip with the plurality of inner flexible clamping elements is a second individual part of the holder element separate from the first individual part, and when the plurality of inner flexible clamping elements of the downholder clip are press fit onto the plurality of sawtooth structures of the pin, the outer clamping end of the downholder clip engages the window element, fixing the window element within the window frame.