Patent ID: 8051604

Claim:
A window, comprising: a window frame; a casement comprising a casement frame, wherein the casement defines a horizontal axis of rotation and a vertical axis of rotation, wherein the casement is tiltable about the horizontal axis of rotation and is pivotable about the vertical axis of rotation; a shank for opening and closing the casement, wherein the shank comprises a main arm hinged to the casement frame permitting tilting of the casement about the horizontal axis of rotation; a multiple-articulation gear with multiple articulations operable with the main arm and the window frame, permitting rotation of the casement about the vertical axis of rotation; an electromotive drive comprising a feed chain wherein the electromotive drive permits tilting of the casement between opened and closed positions; wherein the feed chain connects to the main arm at an end area of both the multiple-articulation gear and the main arm and an end area of the feed chain and the respective end areas of the multiple articulation gear and the main arm are located in an upper corner of the window frame; and wherein the electromotive drive comprises a drive housing located at the upper corner of a vertical casement frame edge in a groove between the window frame and the casement frame.