Patent ID: 8234749

Claim:
A floor scrubber to clean hard floor surfaces comprising: a solution tank to hold a cleaning solution; a squeegee to pick up a dirty fluid which is held in a recovery tank; and a cleaning head assembly comprising: a pair of opposing lift brackets to raise and lower the cleaning head assembly; a motor mounted on a motor mounting plate, the motor operatively connected to an eccentric cam; a cleaning element removably connected to a flexible pad driver, the motor and eccentric cam imparting orbital movement to the flexible pad driver and the cleaning element; and at least one elongate stabilizer element positioned so as to limit the amount of vertical movement between at least one of the lift brackets and the motor mounting plate, which limits the elongation stresses on a plurality of upper vibration dampening elements coupled between the at least one of the lift brackets and the motor mounting plate; wherein the at least one elongate stabilizer element and the upper vibration dampening elements are mounted to the at least one of the lift brackets at distinct, spaced-apart locations.