SURFACE CLEANING APPARATUS Russian patent published in 1997 - IPC

FIELD: cleaning equipment. SUBSTANCE: apparatus has washing head with plate-shaped body provided with porous resilient sealing member extending along perimeter and communicated through central opening with passive nozzle of vortex-type ejector. Active nozzle of ejector is communicated with atmosphere. Ejector is connected to evacuator through openings in end wall of radial slit-type diffuser, whose peripheral part is connected with distributing container. Spray nozzle connected with washing liquid container and curved blades are positioned within washing head body. Curved blades are positioned so as to form nozzle unit with predetermined swirling direction. Inner cavity of washing liquid container is connected with atmosphere. Cavity of distributing container is connected to evacuator. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 3 dwg