SOUND-PROOFING WINDOW Russian patent published in 2003 - IPC

FIELD: civil engineering. SUBSTANCE: the sound-proofing window has a frame, outer and inner sashes, glass installed with the aid of flexible gaskets on the outer sash, multiple glass unit filled with transparent liquid, sound-proofing material located on the inner surface of the window frame, and transverse helical ducts are made on the frame inner surface in the upper part and on the surfaces of the outer and inner sashes adjoining it, the glass has a curved shape, helical-shaped guides located at the edges and in the glass center are pressed in on its outer surface. The transverse helical ducts in the upper part and on the surfaces adjoining it have a curvature in the negative and positive directions of rotation of the helical line, and in the mutually opposite directions of rotation - in the points of connection of the frame. EFFECT: enhanced degree of sound proofing. 5 dwg