Patent 7225495 was granted and assigned to the Libman company on June, 2007 by the United States Patent and Trademark Office.
A separate scrubber is securely attached to a mop that has a sponge mop element. The scrubber is attached to the mounting head with mounting stems. The mounting stems take the form of walls that are spaced at a distance apart. One or more of the walls has an outwardly facing ridge that extends from the wall by no more than half the distance between the walls. Each set of walls extends through an aperture on a mounting head, and the scrubber is held in place by the engagement of the ridges with a mounting face on the mounting head. The walls extend perpendicularly to the length of the body of the scrubber.