US Patent 11871886 Roller mop assembly

A floor cleaning apparatus comprises a handle having a proximal end and a distal end; a housing at the distal end of the handle; a plurality of wheels at a bottom of the housing that rotate relative to the housing when a force is applied to the handle; a plurality of interchangeable and removable surface-cleaning rollers at the housing that rotate relative to the housing and the wheels, and that rotate at a different rate of rotation than the wheels; and a gear assembly that communicates with the wheels to rotate adjacent surface-cleaning rollers in different directions relative to each other to mimic a scrubbing motion.