Abstract: An extraction cleaning machine has a solution dispensing system and a recovery system for applying a cleaning solution to a surface and recovering the solution from the surface, and an agitation brush assembly for agitating the surface. The agitation brush assembly can include friction-type or other dampers for reducing brush bounce, and biasing elements for maintaining a constant downward force on the brush. The brush can have multiple helical rows of tufted bristles, preferably at least four rows, or can comprise a continuous helix of bristles in a twisted-wire spindle. The brush can further have a removable fabric cover for mounting over a bristle brush for contacting a surface being cleaned. The brush assembly can function in an upright extraction cleaning machine with or without an above floor cleaning tool, a hand-held extractor, or a hand-held attachment to a canister extractor or an above floor tool in upright extractor.

Abstract: According to the invention, a portable surface cleaning apparatus includes a fluid recovery system, a liquid dispensing system, and a rotatable agitation brush comprising a brush body and having a plurality of pliable agitation elements mounted along the brush body for contacting a surface to be cleaned. The agitation elements include a face extending along a length which is sufficient to draw the face across the surface to be cleaned as the brush body is rotated. The agitation elements are formed of elongated straps of fabric having a roughened or textured face and that can be formed of nylon knit strapping, synthetic felt, polyester velour, the loop portion of a hook-and-loop fastener system, pressed fiber material, microfiber polishing cloth, or reinforced synthetic fabric, or, in the alternative, formed of elongated fabric threads or string having a roughened or textured surface and formed of cotton roping or braided polyester threads.

Abstract: According to the invention, a portable surface cleaning apparatus includes a fluid recovery system, a liquid dispensing system, and a rotatable agitation brush comprising a brush body and having a plurality of pliable agitation elements mounted along the brush body for contacting a surface to be cleaned. The agitation elements include a face extending along a length which is sufficient to draw the face across the surface to be cleaned as the brush body is rotated. The agitation elements are formed of elongated straps of fabric having a roughened or textured face and that can be formed of nylon knit strapping, synthetic felt, polyester velour, the loop portion of a hook-and-loop fastener system, pressed fiber material, microfiber polishing cloth, or reinforced synthetic fabric, or, in the alternative, formed of elongated fabric threads or string having a roughened or textured surface and formed of cotton roping or braided polyester threads.