WINDSHIELD WIPER BLADE Russian patent published in 2002 - IPC

FIELD: transport engineering; helicopter and other vehicles. SUBSTANCE: invention relates to cleaning of surfaces with detergents. Windshield wiper blade has pair of elastic scrapers with working edges and fasteners symmetrical in cross section for connection with base of blade. Longitudinal chamber and outlet channels for delivering cleaning liquid from chamber into closed space are made in base of blade. Sprayers are installed at outlet of outlet channels. Elastic curtains are secured on end faces of blade at level of glass surface. Blade is provided with inlet branch pipe arranged at opposite side from scrapers between equally beveled ribs of eye in middle part of upper half of base. EFFECT: improved efficiency of cleaning. 4 cl, 6 dwg