Spill containing refrigerator shelf assembly

Abstract

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 shelf assembly comprising:
 a shelf panel having a generally flat top surface which is capable of supporting articles which may be placed on said shelf panel;   a hydrophobic surface arranged in a spill containment pattern on said top surface;   wherein the majority of the surface area of said top surface of the shelf panel is not hydrophobic, thereby providing one or more non-hydrophobic central portions bounded by said spill containment pattern of said hydrophobic surface.   
     
     
         2 . The shelf assembly of  claim 1 , wherein said spill containment pattern is a continuous border which defines a single non-hydrophobic central portion within said border. 
     
     
         3 . The shelf assembly of  claim 1 , wherein said spill containment pattern is a continuous border located near the perimeter of the top surface of the shelf panel. 
     
     
         4 . The shelf assembly of  claim 1 , wherein said spill containment pattern is located along the perimeter of the top surface of the shelf panel. 
     
     
         5 . The shelf assembly of  claim 1 , wherein said spill containment pattern comprises a first continuous border and a second continuous border spaced from said first continuous border, the first continuous border located along the perimeter of the top surface of the shelf panel, and the second continuous border spaced inwardly from said first continuous border such that the second continuous border completely bounds a non-hydrophobic central portion of the top surface of the shelf panel, and the first and second continuous borders together define between them a non-hydrophobic ring portion for containing overflow from said non-hydrophobic central portion. 
     
     
         6 . The shelf assembly of  claim 1 , wherein said spill containment pattern is in the form of a grid pattern on the top surface of the shelf panel and wherein said grid pattern defines a plurality of non-hydrophobic central portions on the top surface of the shelf panel, each of the plurality of non-hydrophobic central portions completely bounded by the grid pattern. 
     
     
         7 . The shelf assembly of  claim 1 , wherein said shelf panel is comprised of a material chosen from the group consisting of glass, plastic, metal and combinations thereof. 
     
     
         8 . The shelf assembly of  claim 1 , wherein the shelf panel is transparent. 
     
     
         9 . The shelf assembly of  claim 8 , wherein the shelf panel is glass. 
     
     
         10 . The shelf assembly of  claim 7 , wherein the hydrophobic surface is transparent. 
     
     
         11 . The shelf assembly of  claim 1 , wherein at least some portion of the hydrophobic surface is colored. 
     
     
         12 . The shelf assembly of  claim 11 , 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. 
     
     
         13 . The shelf assembly of  claim 1 , wherein the hydrophobic surface comprises:
 a ceramic frit layer adjacent to and bonded to the top surface of said shelf panel; and   a hydrophobic compound coated over the ceramic frit layer.   
     
     
         14 . The shelf assembly of  claim 13 , wherein said ceramic frit layer contains additive particles that create roughness in a top surface of the ceramic frit layer. 
     
     
         15 . The shelf assembly of  claim 1 , wherein at least a portion of said ceramic frit layer is colored. 
     
     
         16 . The shelf assembly of  claim 1 , wherein said hydrophobic surface comprises a hydrophobic coating over a roughened area in the surface of said shelf panel. 
     
     
         17 . The shelf assembly of  claim 16 , wherein said roughened area is made by etching the surface with acid. 
     
     
         18 . The shelf assembly of  claim 16 , wherein said roughened area comprises a plurality of particles bound to the surface of the shelf panel. 
     
     
         19 . The shelf assembly of  claim 1 , wherein said hydrophobic surface comprises a coating of hydrophobic particles on the surface of said shelf panel. 
     
     
         20 . The shelf assembly of  claim 1 , wherein said hydrophobic surface comprises a hydrophobic compound applied over or within the matrix of a cured sol gel composition. 
     
     
         21 .- 93 . (canceled)