DORMER-WINDOW Russian patent published in 2008 - IPC E06B7/14 

FIELD: construction, windows.

SUBSTANCE: invention pertains to the field of construction, and particularly to window construction. The invention allows for making a drainage system in an inclined dormer-window. The dormer-window consists of window frame, frame casement, lining and draining element. Each window frame and casement consists of upper frame element, lower frame element and two lateral frame elements. The window is made with a first and second drainage grooves. The first drainage groove is between the walls of the window frame. The second drainage groove is between walls of the casement. The first drainage groove has a concave surface, stretches along the inner walls of the window frame and has a projection, protruding out from the inner surface of the window frame. The drainage groove of the casement has a concave surface, stretches along the outer walls of the casement and has another projection, protruding from the outer surface of the casement.

EFFECT: design of a drainage system in an inclined dormer-window.

12 cl, 7 dwg