Spill containing refrigerator shelf assembly
The specification discloses a method for containing spills on shelving and the like, and the resulting support members made in accordance with the method, by providing the generally flat top surface of a support with a hydrophobic surface which is arranged in a spill containment pattern and which is generally in the plane of the top surface of the support. The majority of the top surface of the support consists of one or more spill containment areas which are of a non-hydrophobic nature and which are bounded by the hydrophobic surfaces, such that spills on the shelving collect in the non-hydrophobic spill containment area or areas and are prevented from spreading by the hydrophobic surfaces.
1. A shelving assembly comprising a bracket for supporting a shelf and the shelf, wherein the shelf comprises a flat top surface which is capable of supporting articles which may be placed on said shelf, characterized in that the shelf comprises a hydrophobic surface which is arranged in a spill containment pattern on said top surface, wherein a majority of the top surface is not hydrophobic, thereby defining one or more non-hydrophobic spill containment areas bounded by said spill containment pattern of the hydrophobic surface, wherein the hydrophobic surface is created by a hydrophobic or super hydrophobic surface treatment of the top surface.
2. The shelving assembly of claim 1 wherein said spill containment pattern is a continuous border which defines a single non-hydrophobic spill containment area within said border, and in particular, wherein said spill containment pattern is a continuous border located near the perimeter of the top surface, optionally located along the perimeter of the top surface.
3. The shelving assembly of claim 1 wherein said spill containment pattern comprises two spaced continuous borders, a first being a continuous border located along the perimeter of the top surface, and the second being a continuous border spaced inwardly from said first border, such that the second border circumscribes an inner spill containment area, and the first and second borders together define between them an outer spill containment area for containing overflow from said inner containment area.
4. The shelving assembly of claim 1 wherein said spill containment pattern is in the form of a grid pattern on the top surface and wherein said grid pattern defines more than one non-hydrophobic spill containment area on the top surface.
5. The shelving assembly of claim 1 , which is adapted for use as a refrigerator shelf.
6. The shelving assembly of claim 5 wherein the top surface is transparent, and in particular, is glass.
7. The shelving assembly of claim 5 wherein the hydrophobic surface is transparent.
8. The shelving assembly of claim 1 wherein said top surface is comprised of a material chosen from the group consisting of glass, plastic, metal and combinations thereof.
9. The shelving assembly of claim 8 wherein at least some portions of the hydrophobic surfaces are colored, and in particular, wherein the hydrophobic surface contains a colored portion in a form chosen from the group consisting of a pattern, a company name, a company logo and combinations thereof.
10. The shelving assembly of claim 1 wherein the hydrophobic surface comprises:
a frit layer adjacent to the top surface; and
a hydrophobic compound coated over the frit layer.
11. The shelving assembly of claim 10 wherein said frit layer contains additive particles that create roughness in the top surface of the frit layer, and in particular, wherein optionally at least a portion of said frit layer is colored.
12. The shelving assembly of claim 1 , wherein said hydrophobic surface comprises a hydrophobic coating over a roughened area in the top surface, and in particular, wherein said roughened area is made by binding particles to the top surface.
13. The shelving assembly of claim 1 wherein said hydrophobic surface comprises a coating of hydrophobic particles on the top surface.
14. The shelving assembly of claim 1 wherein said hydrophobic surface comprises a hydrophobic compound applied over or within the matrix of a cured sol gel composition.
15. The shelving assembly of claim 1 wherein said hydrophobic surface comprises a metal oxide primer with an integrated hydrophobic compound.
16. The shelving assembly of claim 1 wherein said hydrophobic surface comprises a hydrophobic coating applied over a metal oxide primer.
17. The shelving assembly of claim 1 wherein said hydrophobic surface comprises a hydrophobic compound comprising a variety of molecular chain lengths to create a coating with surface irregularities.
18. A method of containing liquid spills on a shelf of a shelving assembly according to claim 1 , the method comprising:
providing the shelf;
applying the hydrophobic surface arranged in a spill containment pattern on said top surface;
leaving the majority of said top surface non-hydrophobic, thereby providing one or more non-hydrophobic spill containment areas bounded by the spill containment pattern of the hydrophobic surface ( 1030 ).
19. The method of claim 18 wherein the step of applying a hydrophobic surface comprises:
applying a frit to the top surface in a spill containment pattern;
sintering the frit to the top surface;
applying a hydrophobic compound to the sintered frit; and
curing the hydrophobic compound.