Decorative swimming pool joint and draining system

Abstract

A novel swimming pool deck drainage system and expansion joint that are adapted to be cast into a concrete pool deck surface. The drainage system is designed to properly drain water from pool overflow and rain water from the decking while enhancing the aesthetics of the swimming pool deck. The drainage system provides an effective drainage for pool decks and effectively collects and carries water away quickly from pool decks and other patio areas. The joint system protects against cracking and buckling of the concrete deck surface. The decorative swimming pool joint and drainage systems are formed using a co-extrusion process. The drain and joint systems are made from an exterior grade of PVC. While the drain and joint components are being extruded, a cap stock made from ASA (weatherable ABS) material is extruded and fused into the top of the drain and joint. The cap stock material includes a base color and seed resin mixed with the ASA to provide a wood grain appearance. The product, when cast into the concrete decking, has the appearance of wood and is provided in assorted wood grains and colors.

1 . A co-extruded polymer deck joint for use with poured concrete decking, said deck joint comprising: 
 a substantially horizontal top wall partially formed from a first polymer, said top wall having a top surface formed of a second polymer, said second polymer being mixed with color and a seed resin to form an aesthetic pattern on the top surface of the top wall;    a pair of sidewalls connected to the top wall at a first end, said side walls adapted to be cast in the concrete such that only the top wall is primarily visible when installed in the concrete, said sidewalls formed of said first polymer; and    said sidewalls and said top wall being co-extruded to form the polymer deck joint having an aesthetic pattern.    
   
   
       2 . The co-extruded polymer deck joint of  claim 1 , wherein the second polymer is extruded with the first polymer so that the second polymer is fused to the first polymer within the top surface.  
   
   
       3 . The co-extruded polymer deck joint of  claim 1 , wherein the first polymer material is selected from a group of thermoplastics including, PVC, CPVC, PP, PE, HDEP and EVA.  
   
   
       4 . The co-extruded polymer deck joint of  claim 1 , wherein the second polymer material is selected from a group of thermoplastics including Acrylonitrile Butadiene Styrene, Poly-Styrene and Acylonitrile Styrene Acylate.  
   
   
       5 . A co-extruded polymer deck drain for use with concrete decking, said deck drain comprising: 
 a top wall partially formed from a first polymer, said top wall including a plurality of openings to permit drainage;    a bottom wall opposing the top wall, the bottom wall formed from said first polymer;    a pair of generally vertical walls interconnecting said top and bottom walls, said bottom and side walls adapted to be cast in concrete and form a channel for the collection of water; and    said to wall including a top surface formed of a second polymer co-extruded with the first polymer, said second polymer combined with color and seed resin to form an aesthetic pattern on the top surface of the top wall, wherein the aesthetic pattern remains visible when the deck drain is cast with the concrete decking.    
   
   
       6 . The co-extruded polymer deck drain of  claim 5 , wherein the second polymer is extruded with the first polymer so that the second polymer is fused to the first polymer within the top surface.  
   
   
       7 . The co-extruded polymer deck drain of  claim 5 , wherein the first polymer material is selected from a group of thermoplastics including, PVC, CPVC, PP, PE, HDEP and EVA.  
   
   
       8 . The co-extruded polymer deck drain of  claim 5 , wherein the second polymer material is selected from a group of thermoplastics including Acrylonitrile Butadiene Styrene, Poly-Styrene and Acylonitrile Styrene Acylate.  
   
   
       9 . A co-extruded polymer deck drain and expansion joint for use with poured concrete decking to drain water on the decking and permit expansion and contraction, said deck drain and joint each comprising: 
 a substantially horizontal top wall partially formed from a first polymer, said top wall having a top surface formed of a second polymer, said second polymer being mixed with color and a seed resin to form an aesthetic pattern on the top surface of the top wall;    a pair of sidewalls connected to the top wall at a first end, said side walls adapted to be cast in the concrete such that only the top wall is primarily visible when installed in the concrete, said sidewalls extruded from said first polymer;    an outwardly extending lip formed on an outside surface of the sidewalls, the lip adapted to aid in retaining the deck drain and expansion joint within the concrete; and    said sidewalls and said top wall being co-extruded to form the polymer deck drain and expansion joint having an aesthetic pattern.    
   
   
       10 . The co-extruded polymer deck drain and expansion joint of  claim 9 , wherein the second polymer is extruded with the first polymer so that the second polymer is fused to the first polymer within the top surface.  
   
   
       11 . The co-extruded polymer deck drain and expansion joint of  claim 9 , wherein the first polymer material is selected from a group of thermoplastics including, PVC, CPVC, PP, PE, HDEP and EVA.  
   
   
       12 . The co-extruded polymer deck drain and expansion joint of  claim 9 , wherein the second polymer material is selected from a group of thermoplastics including Acrylonitrile Butadiene Styrene, Poly-Styrene and Acylonitrile Styrene Acylate.