Sponge product
View Patent ↗A multi-surface sponge product includes a foraminous portion adhered to an abrasive portion to form a unitary product, each portion and the resulting product having a pair of sidewalls and in cross-section or side elevation having the form of a parallelogram. The sidewalls form gripping areas and the angled forward and reward end opposite ends of the parallelogram shaped body form wedges. The multi-surface body is low profile and various edges and corners thereof enable the foraminous and abrasive portions to be selectively used to engage corners of many differently configured surfaces to be cleaned, to either scrub the surface or simply clean or absorb fluid, depending on which portion of the product is emplaced in the edge or in a corner.
1. A sponge product for cleaning a work surface, comprising:
a foraminous body layer having an upper surface and an opposed lower surface in parallel spaced relation to one another, a front wall and opposed rear wall that are parallel to one another, and a first sidewall and opposed second sidewall, wherein at least one of the front wall, rear wall, first sidewall or second sidewall is inclined to form an acute angle relative to the upper surface of the body layer, and
an abrasive layer overlying only the upper surface of the foraminous body layer and attached thereto to form a unitary product, wherein the abrasive layer has an upper surface and an opposed lower surface that are parallel to one another, a front wall and an opposed rear wall that are parallel to one another, and a first sidewall and an opposed second sidewall, and at least one of the front wall, rear wall, first sidewall or second sidewall of the abrasive layer form an obtuse angle with the lower surface of the abrasive layer, and the abrasive layer upper surface and at least one front wall, rear wall, first sidewall or second sidewall forms a working edge having an acute angle, such that the working edge remains flat against the work surface when a force is applied to the sponge product, wherein the abrasive layer has a parallelogram shape and the foraminous body layer has a parallelogram shape.
2. The sponge product of claim 1 , wherein at least one of the abrasive layer front wall, rear wall, first sidewall or second sidewall is inclined and at an acute angle relative to the inclined front wall, rear wall, first sidewall or second sidewall of the foraminous body layer to form a continuous angled sponge wall such that a second working edge is formed in the foraminous body layer along an opposed edge to the first working edge.
3. The sponge product of claim 1 , wherein the acute angle is about 30°.
4. The sponge product of claim 1 , wherein the acute angle is about 60°.
5. The sponge product of claim 1 , wherein the foraminous body layer comprises an open-celled hydrophilic polyurethane foam.
6. The sponge product of claim 5 , wherein the polyurethane foam is a polyester polyol-based polyurethane foam.
7. The sponge product of claim 5 , wherein the abrasive layer is selected from the group consisting of polyester fibers, polyethylene fiber, polypropylene fiber, nylon fibers and a reticulated foam.
8. The sponge product of claim 5 , wherein the abrasive layer is a non-woven nylon fiber.
9. The sponge product of claim 1 , wherein a shape of the sponge product is a quadrilateral.
10. A sponge product for cleaning a work surface, comprising:
a foraminous body layer having an upper surface and an opposed lower surface in parallel spaced relation to one another, a front wall and opposed rear wall that are parallel to one another, and a first sidewall and opposed second sidewall, wherein at least one of the front wall, rear wall, first sidewall or second sidewall is inclined to form an acute angle relative to the upper surface of the body layer, and
an abrasive layer overlying only the upper surface of the foraminous body layer and attached thereto to form a unitary product, wherein the abrasive layer has an upper surface and an opposed lower surface that are parallel to one another, a front wall and an opposed rear wall that are parallel to one another, and a first sidewall and an opposed second sidewall, and at least one of the front wall, rear wall, first sidewall or second sidewall of the abrasive layer form an obtuse angle with the lower surface of the abrasive layer, and the abrasive layer upper surface and at least one front wall, rear wall, first sidewall or second sidewall of the abrasive layer forms a working edge having an acute angle, such that the working edge remains flat against the work surface when a force is applied to the sponge product, wherein a shape of the sponge product is rhomboidal.