Patent ID: 9080379
Filing Date: 2015-07-14
Classification: E05D,E06B

Abstract:
1. A window assembly comprising: an upright window frame defining a frame opening, the window frame including a frame header, a frame sill, and a pair of vertical frame jambs extending from the frame header to the frame sill; an upper sash and a lower sash mounted in said window frame, each of said sashes including a sash frame and a panel, each sash frame including a top rail, a bottom rail and two vertical stiles extending from the top to the bottom rail, for retaining the panel; the frame of the upper sash having a top section and a bottom section, the top section being pivotally mounted to the window frame, allowing the upper sash to pivot about its top rail; the frame of the lower sash having a top section and a bottom section, the bottom section being pivotally mounted to the window frame, allowing the bottom sash to pivot about its bottom rail; at least one of the upper and lower sashes being a slidable sash, the frame of the at least one slidable sash being also slidably mounted to the frame jambs of the window frame, allowing the at least one slidable sash to slide vertically within the window frame; a hinge assembly hingedly connecting the bottom rail of the upper sash with the top rail of the lower sash, said rails being also referred to as hingedly connected rails, the hinge assembly comprising: the upper and lower sashes being movable between an extended closed configuration and a folded open configuration, wherein in the extended closed configuration, the upper and lower sashes extend within the window frame, closing the frame opening, and in the folded open configuration, one of said at least one slidable sash is brought towards one of the upper and lower sashes and the hinge assembly points outwardly from the window frame, the upper and lower sashes pivoting about the tube when moved between the extended closed configuration and folded open configuration; and a retaining device operatively connectable to one of said at least one slidable sash and to said window frame, for retaining the one of said at least one slidable sash when the upper and lower sashes are in the folded open configuration. wherein the tube is capable of disengaging from the socket, when the lower and upper sashes are in the folded open configuration.