Water permeable paver

Abstract

A paver system for paving a surface is provided. The paver system includes a plurality of cells interconnected to form a grid. The cells generally include six walls to form a hexagonal shape. The cells share at least two walls with adjacent cells, wherein the grid is arranged having parallel rows and columns of cells defining a parallelogram shaped grid. The grid defines four sides, wherein adjacent sides are not at a right angle, wherein select cells may have one or more walls which include a flexible expansion node, and wherein the cells are adapted to receive a filler.

1 . A paver system for paving a surface, comprising:
 a plurality of cells interconnected to form a grid, the cells generally include six walls to form a hexagonal shape, the cells share at least two walls with adjacent cells, wherein the grid is arranged having parallel rows and columns of cells defining a parallelogram shaped grid, the grid defining four sides, wherein adjacent sides are not at a right angle, wherein select cells may have one or more walls which include a flexible expansion node, and wherein the cells are adapted to receive a filler.   
     
     
         2 . The paver system of  claim 1 , wherein flexible expansion node extends from a flexible wall of a cell, wherein the wall is interrupted to form a first and second short wall, the first and second short wall extend from adjacent vertices of the cell and form a gap between ends of the first and second short wall, the flexible expansion node extends from the flexible wall and is surrounded by the walls of a cell. 
     
     
         3 . The paver system of  claim 2 , wherein the flexible expansion node includes a curved wall forming a horse-shoe or U-shape like structure. 
     
     
         4 . The paver system of  claim 1 , wherein at least a majority of the cells include a filler, the filler includes tumbled rubber chips and a binder, wherein the filler provides a tortuous path extending through the filler. 
     
     
         5 . The paver system of  claim 1 , wherein the cells include at least one retention tab extending from a wall in a generally horizontal direction and from a location spaced apart from the top edge and bottom edge of the cell wall, wherein the retention tab is adapted to retain the filler within the cell. 
     
     
         6 . The paver system of  claim 1 , wherein a plurality of the cells include an anchor flange, the anchor flange extends horizontally between opposing facing walls from a bottom edge of the walls, an opening is located in the anchor flange and adapted to receipt a spike or other fastener to secure the paver system. 
     
     
         7 . The paver system of  claim 1 , wherein the walls of the cells have a thickness, and the majority of the walls have a first thickness, and walls along a perimeter of the grid have a second thickness, wherein the second thickness is approximately half of the first thickness. 
     
     
         8 . The paver system of  claim 1 , wherein two sides of the grid include locking tabs extending from an exterior side of a wall, and the other two sides of the grid include locking slots extending through a wall, wherein the locking tabs of one grid are received by respective locking slots of another grid. 
     
     
         9 . The paver system of  claim 1 , further comprising one or more removable connectors, wherein the grid includes one or more locking slots, wherein the removable connector is received by a first locking slot on the grid, and received by a second locking slot on a second grid, such that the first and second grids are removably affixed through said removable connector. 
     
     
         10 . The paver system of  claim 8 , wherein a shroud extends from the interior side of the wall having a locking slot and over the locking slot, wherein the bottom of the shroud is open to allow the locking slot to receive a respective locking tab. 
     
     
         11 . The paver system of  claim 1 , wherein the upper edge of cells and flexible expansion nodes include a notch, wherein notches are aligned to form two rows of aligned notches, and each of the pair of aligned rows of notches receives a divider bar, each divider bar extends down to approximately the bottom of the cell, pairs of aligned divider bars form a straight row, for receiving filler between the pair of divider bars, wherein the filler has a different characteristic from the filler on the other side of the pair of divider bars. 
     
     
         12 . The paver system of  claim 11 , wherein the divider bars include a first end and a second end, each end includes a tang to be received by a notch in the upper edge of a cell, and between the first end and second end are a plurality of slots spaced apart for being received by a respective notch in the upper edge of cell walls, and wherein the area within each cell which may receive a divider bar is void of structure which would impede with receiving a divider bar. 
     
     
         13 . The paver system of  claim 1 , wherein the grid is formed by an odd number of rows of cells and an odd number of columns of cells, and the center row and the center column each include a plurality of flexible expansion nodes arranged symmetrically and wherein the grid is defined into four quadrants. 
     
     
         14 . The paver system of  claim 1 , wherein the grid is formed by an odd number of rows of cells and an odd number of columns of cells, and wherein the cell located in the center of the grid includes a flexible expansion node in each of the six walls in a symmetrical arrangement. 
     
     
         15 . The paver system of  claim 1 , wherein two sides of the grid include a plurality of anchor tabs extending horizontally from a lower edge of a cell wall, each anchor tab includes an opening for receiving an anchor stake. 
     
     
         16 . The paver system of  claim 1 , wherein the grid is formed from molded plastic. 
     
     
         17 . A method of manufacturing a paver system, the method comprises:
 forming a grid having a plurality of interconnected cells, the cells include retention tabs;   creating a filler by tumbling rubber chips with an adhesive;   adding filler to at least a majority of the cells; and   installing one or more grids over a prepared surface.   
     
     
         18 . The method of  claim 17 , further comprising inserting pairs of divider bars into the grid to form the outline of a desired stripe; and adding a filler of a contrasting color into the cells or portion of cells located between the pair of divider bars. 
     
     
         19 . The method of  claim 17 , further comprising the step of installing one or more grids which include cells without a filler; and adding soil to empty cells which extend into a green space. 
     
     
         20 . The method of  claim 17 , including creating a filler on the job site by tumbling rubber chips with an adhesive; and adding filler to cells as desired. 
     
     
         21 . The method of  claim 17 , further comprising trimming a grid as desired; and installing the trimmed grid over a prepared surface.