Cast concrete paver block

Abstract

Precast concrete paver blocks are provided with interlocking edge joints so that abutting edges of adjacent paver blocks align when the blocks are installed and are maintained in alignment. At each joint, each block includes a tapered projection and a recess. When edges of two blocks are moved to abut each other, the tapered joint projection on each block enters the joint recess on the other block. The taper on the projections move the blocks to align the block surfaces. The edges of the blocks are angled or relieved below the joints to ensure a tight fit at the top of the paver blocks.

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       11 . A cast concrete paver block having a top surface, a bottom, and six side edges, first and second of said side edges extending parallel to each other, third and fourth of said side edges joining opposite ends of said first side edge and each extending at angles greater than 90° to said first side edge whereby extensions of said third and fourth side edges converge, and fifth and sixth of said side edges connecting between opposite ends of said second side edge and ends of said third and forth side edges.  
   
   
       12 . A cast concrete paver block, as set forth in  claim 11 , and wherein said first and second side edges are of the same length and at least as long as said third and forth side edges.  
   
   
       13 . A cast concrete paver block, as set forth in  claim 13 , and wherein said first side is shorter than said second side.  
   
   
       14 . A cast concrete paver block, as set forth in  claim 11 , and wherein said first and second side edges are spaced apart by a predetermined distance, and wherein the third and fourth side edges each have a length substantially equal to said predetermined distance.  
   
   
       15 . A cast concrete corner paver block for forming a bend in a sidewalk formed from a series of rectangular concrete paver blocks having a predetermined width, said corner paver block having a top surface, a bottom, and six side edges, first and second of said side edges extending parallel to each other, third and fourth of said side edges joining opposite ends of said first side edge and each extending at angles greater than 90° to said first side edge, fifth and sixth of said side edges connecting between opposite ends of said second side edge and ends of said third and forth side edges, and wherein said third and fourth side edges each have a length substantially equal to said predetermined width.  
   
   
       16 . A cast concrete corner paver block, as set forth in  claim 15 , and wherein extensions of said third and forth side edges converge.  
   
   
       17 . A cast concrete corner paver block, as set forth in  claim 16 , and wherein said third and forth side edges converge at an angle of 30°, whereby three corner paver blocks positioned with third and fourth edges of adjacent blocks abutting form a 90° bend.  
   
   
       18 . A cast concrete corner paver block, as set forth in  claim 16 , and wherein said third and forth side edges converge at an angle of 45°, whereby two corner paver blocks positioned with third and fourth edges of adjacent blocks abutting form a 90° bend.