| CPC E06B 9/581 (2013.01) [E06B 9/42 (2013.01); E06B 2009/587 (2013.01)] | 21 Claims |
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1. A track assembly comprising:
a metal U-shaped track configured to be fixed to a structure, the metal U-shaped track having an elongate channel comprising an open side, an end wall, an interior, and two side walls, the interior of the elongate channel comprising a first region and a second region each provided within the two side walls, the first region defined between the end wall and an interior partition wall that extends between and connects to the two side walls, and the second region defined from the interior partition wall towards the open side, and the two side walls extending from at least the interior partition wall to the open side; and
a screen receiver and at least one wave spring positioned within the elongate channel, the screen receiver configured to receive a portion of a screen therein,
wherein the at least one wave spring has a plurality of waves, the waves comprising a plurality of peaks and valleys, and the plurality of waves is designed for (a) compression during movement of the screen receiver in a first direction upon application of force thereto and (b) expansion to force the screen receiver towards a second direction opposite the first direction when the application of force is reduced,
wherein the plurality of waves of the at least one wave spring have a first peak to valley amplitude when the force is applied thereto and compresses the at least one wave spring, and a second peak to valley amplitude when the application of force is reduced and the at least one wave spring is expanded, and wherein the second peak to valley amplitude is greater than the first peak to valley amplitude, and
wherein the at least one wave spring has a spring rate between 5 lbs/inch and 300 lbs/inch and is at least three feet long.
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