Patent ID: 8667635

Claim:
A portable grouting-cleaning machine suitable for clad vertical walls comprising: a portable frame ( 2 , 4 , 34 ); an upperly open water container ( 8 ) with a prevalent vertical dimension supported by said portable frame; an endless sponge band ( 6 ) stretched between deviation rollers ( 10 , 12 , 14 , 20 , 36 ) positioned such to form a straight vertical sponge portion to rest against a wall to be treated, said deviation rollers comprising at least one motorized roller ( 14 ) and at least one roller ( 36 ) housed in said container ( 8 ), to form a loop of said band ( 6 ) therein; two handgrips ( 26 ) positioned side by side on said portable frame, and grippable by an operator during machine operation to lift, support and guide the machine along a vertical surface to be treated; and at least one pushbutton ( 28 ), fixed on the portable frame of the machine, connected into a power circuit of an electric motor ( 18 ), which drives said motorized roller ( 14 ) and is actuable by the operator who grips said handles ( 26 ) during the machine operation.