Patent ID: 7788864
Filing Date: 2010-09-07
Classification: E04D,E06B

Abstract:
1. A window comprising: a frame having a top member, a bottom member and two side members defining a frame plane, a sash having a top member, a bottom member and two side members defining a sash plane, an interface between the frame and the sash, including an interface between each of the frame side members and corresponding sash side members, a screening arrangement, said sash being connected to the frame by means of at least one hinge connection to provide a hinge axis substantially parallel with the frame top member and the sash top member, such that the sash may be moved from a closed position to a ventilating position, in which ventilating position the sash plane forms an angle within a limited angle range with the frame plane to provide at least one ventilating aperture, said screening arrangement covering said at least one ventilating aperture at least partly in the ventilating position, said screening arrangement comprising at least one screening element, which, in a closed position of the window, is arranged in an inactive position at the interface between frame and sash, and in the ventilating position spans the ventilating aperture between the frame bottom member and the sash bottom member, and/or between the frame top member and the sash top member, and that the at least one screening element is connected with the sash or frame top or bottom member and is in releasable engagement with the corresponding frame or sash member within said limited angle range, wherein said at least one screening element is provided exclusively at the top and/or bottom member of the sash and the frame, the interface between each of the frame side members and the corresponding sash side members being devoid of screening elements that extend as the window moves from the closed position to the ventilating position, wherein said at least one screening element releases from engagement with the corresponding frame or sash member in response to said sash being moved beyond the ventilating position in a direction away from the closed position, wherein each of the frame side members has an inner surface and an outer surface spaced from one another in a direction perpendicular to the frame plane, wherein each of the sash side members has an inner surface and an outer surface spaced from one another in a direction perpendicular to the sash plane, and wherein the interface between each of the frame side members and the corresponding sash side members comprises an arrangement selected from the group consisting of a) sealing means mounted on one of i) the sash side member, wherein the sealing means is positioned entirely between the inner and outer surfaces of the frame side member when the sash has not been moved beyond the ventilating position in a direction away from the closed position and ii) the frame side member, wherein the sealing means is positioned entirely between the inner and outer surfaces of the sash side member when the sash has not been moved beyond the ventilating position in a direction away from the closed position, b) an interface screening element mounted between the at least one screening element and the adjacent frame side member, wherein the interface screening element is mounted on one of i) the sides of the at least one screening element, between the inner and outer surfaces of the adjacent frame side member, and ii) the adjacent frame side member, between the inner and outer surfaces of the frame side member, and c) a sealing cooperation of the sash side members themselves with the corresponding frame side members themselves, wherein the sash side members are in sealing cooperation with the corresponding frame side members when the sash is in the ventilating position.