Patent ID: 6550090
Filing Date: 2003-04-22
Classification: A47L,E04G

Abstract:
A machine for cleaning the outer wall of a high-rise building, comprising:a case including a posterior side and an open anterior side divided into chambers with the rims of each chamber at said open anterior side having one of rubber plates and brushes fixed therealong; a rotatable propeller driven by a driving means, said propeller located at the posterior side of the case for providing a pushing force to the case against the outer wall of the building; at least one rotary brush mounted in each said chamber, a top chamber including means for supplying a detergent solution to the brush therein and a bottom chamber including means for supplying water to a brush therein; means for collecting used liquid; a pair of plates secured to respective top and bottom portions of the case; an elongated rubber member mounted along the top plate to help wipe off liquid left on the outer wall; a pair of elongated elements mounted to each of the top and bottom plates, each pair of elongated elements is adjustably secured to the respective plate whereby the relative distance therebetween may be adjusted, whereby the force exerted by the brushes on the outer wall is optimized; and said case is hung by a cable from the top of the building wherein pulling or shifting of said cable helps move the case vertically or horizontally along said wall.