Patent attributes
A sponge for cleaning grout that occupies the concave spaces between tiles has a cleaning surface that includes a plurality of rows of elongate convexities. In a first embodiment, the convexities are linear in configuration, are disposed in parallel relation to one another, and the space between the convexities is flat. In a second embodiment, the space between the parallel, linear convexities is occupied by secondary convexities that have less height than the primary convexities. In a third embodiment, the convexities are non linear and non-parallel. In all embodiments, the convexities may be aligned with the concave grooves between tiles or positioned at a right angle to the grooves. In both orientations, the convexities extend into the concavities and clean the grout between the tiles.
