Patent ID: 6722082
Filing Date: 2004-04-20
Classification: E06B

Abstract:
A window comprising:(a) a frame, first and second fixed jamb liners, a pair of sashes, and first and second hinged weatherstrips; (b) the frame includes first and second vertical jambs, wherein each of the first and second jambs includes a receiving surface; (c) each of the first and second fixed jamb liners includes an outer surface and an inner surface opposite the outer surface, wherein the outer surface of the first fixed jamb liner is secured to the receiving surface of the first jamb, wherein the outer surface of the second fixed jamb liner is secured to the receiving surface of the second jamb, and wherein the inner surface of each of the first and second fixed jamb liner includes a pair of tracks guiding the sashes, and wherein the inner surface of each of the first and second fixed jamb liners includes a hinged weatherstrip receiving surface disposed between said tracks; (d) each of the first and second hinged weatherstrips includes a sash bearing member and a second member hingedly connected thereto, wherein each of the sash bearing members includes a first pressure drop area, wherein each said second member contacts the hinged weatherstrip receiving surface of a respective one of the fixed jamb liners and biases a respective one of said sash bearing members about a hinge axis towards a side of a respective one of said sashes; and (e) wherein the sashes are pivotable with respect to said jamb liners.