WINDOW-SILL Russian patent published in 2001 - IPC

FIELD: construction engineering. SUBSTANCE: window-sill has stool fastened in window opening or slab with holes arranged through window width and ensuring air passage through stool from bottom to top along window glazing. Catch used for changing total flow area of holes is mounted on stool surface. Plate is placed on top surface of stool; one side of mentioned plate is black, other one is white. Plate may be installed with one or another side upward. Window-sill may be erected with plate installed at certain angle to upper window-sill surface. EFFECT: provision for controlling air passing through window-sill and for using heat of sun rays. 2 cl, 1 dwg