Grout cleaning sponge

Details Grout cleaning sponge Grout cleaning sponge

2007-05-01

2007-05-01

Spisich, Mark (Department: 1744)

Brushing, scrubbing, and general cleaning

Implements

Sponge or sponge with holder

C015S244100, CD32S040000

Reexamination Certificate

active

10708266

ABSTRACT:
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.

REFERENCES:
patent: 2946154 (1960-07-01), Bornemann
patent: 5640737 (1997-06-01), Boggs
patent: 5836034 (1998-11-01), Galvan Garza
patent: 6076221 (2000-06-01), Bradshaw
patent: D446616 (2001-08-01), Denney
patent: D446895 (2001-08-01), Denney

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