Two piece interlocking block system

Abstract

An interlocking block system consisting of a full block and a half block are installed mortar free with the internal cells filled with grout as required. The blocks must be laid in the upright position but may be rotated end to end as required for aesthetic reasons or to create an additional square internal cell. The blocks are supported by a tongue and groove engagement at the four external corners and four internal locking members that engage within the block on the course above. Knockout sections and relief areas are supplied for the installation of reinforcing bars. When the blocks are turned at a ninety degree angle to make a corner, the internal locking members engage in the square end cell of the block above equally as well as they do in a straight course of blocks.

1 . A two-block building system comprising: 
 a first block having a top surface, a bottom surface, two parallel sidewalls joined at a first end to an endwall, said sidewalls having distal ends opposite said first end;    said first block having a second wall extending between said sidewalls adjacent to said distal ends;    said first block having an open end cavity extending between said distal ends of said second wall;    a second block having a top surface, a bottom surface and two parallel sidewalls, said sidewalls attached at respective first ends to an endwall;    a plurality of projections extending above said top surface of said first block;    a plurality of projections extending above said top surface of said second block; and    recesses communicating with said bottom surfaces of said first and second blocks, said recesses positioned for an engagement with underlying of said projections from any of said first and second blocks, stacked to form a wall.    
   
   
       2 . The two block building system of  claim 1  additionally comprising: 
 said second block having a length substantially one half the length of said first block.    
   
   
       3 . The two block building system of  claim 1  additionally comprising: 
 each of said plurality of projections extending above said respective top surfaces having rectangular shape formed by four side surfaces; and    each of said recesses extending below said respective bottom surfaces having at least one engaging side surface positioned to contact at least one respective of said side surfaces of said projection, whereby said projections in said engagement within said recesses provides means to align respective sidewalls of overlying of said first and second blocks stacked in a wall, with underlying of said first and second blocks stacked in said wall.    
   
   
       4 . The two block building system of  claim 2  additionally comprising: 
 each of said plurality of projections extending above said respective top surfaces having rectangular shape formed by four side surfaces; and    each of said recesses extending below said respective bottom surfaces having at least one engaging side surface positioned to contact at least one respective of said side surfaces of said projection, whereby said projections in said engagement within said recesses provides means to align respective sidewalls of overlying of said first and second blocks stacked in a wall, with underlying of said first and second blocks stacked in said wall.    
   
   
       5 . The two block building system of  claim 1  additionally comprising: 
 one of said sidewalls of each of said first blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said first blocks having a recess formed along said distal end thereof;    one of said sidewalls of each of said second blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said second blocks having a recess formed along said distal end thereof;    said end wall of each of said first blocks having a projection extending therefrom positioned in-line with said recess at said distal end of said sidewall thereof;    said endwall of each of said first blocks having a recess formed therein, said recess positioned in-line with said projection extending from said distal end of the other of said sidewalls of said first block;    said endwall of each of said second blocks having a projection extending therefrom positioned in line with said recess at said distal end of said sidewall thereof;    said endwall of each of said second blocks having a recess formed therein, said recess positioned in line with said projection extending from the distal end sidewall of said second block; and    whereby said respective projections and said recesses upon said distal ends and said sidewalls of any one of said respective first or second blocks, engages with mating of said recesses and said projections formed upon any first or second block placed adjacent thereto.    
   
   
       6 . The two block building system of  claim 2  additionally comprising: 
 one of said sidewalls of each of said first blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said first blocks having a recess formed along said distal end thereof;    one of said sidewalls of each of said second blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said second blocks having a recess formed along said distal end thereof;    said end wall of each of said first blocks having a projection extending therefrom positioned in-line with said recess at said distal end of said sidewall thereof;    said endwall of each of said first blocks having a recess formed therein positioned in-line with said projection extending from said distal end of said sidewall thereof;    said endwall of each of said second blocks having a projection extending therefrom positioned in line with said recess at said distal end of said sidewall thereof;    said endwall of each of said second blocks having a recess formed therein, said recess positioned in-line with said projection extending from said distal end of sidewall thereof; and whereby said respective projections and said recesses upon said distal ends and said sidewalls, of any one of said respective first or second blocks, engages with mating of said recesses and said projections formed upon any first or second block which placed adjacent thereto in forming a wall.    
   
   
       7 . The two block building system of  claim 3  additionally comprising: 
 one of said sidewalls of each of said first blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said first blocks having a recess formed along said distal end thereof;    one of said sidewalls of each of said second blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said second blocks having a recess formed along said distal end thereof;    said end wall of each of said first blocks having a projection extending therefrom positioned in-line with said recess at said distal end of said sidewall thereof;    said endwall of each of said first blocks having a recess formed therein positioned in-line with said projection extending from said distal end of said sidewall thereof;    said endwall of each of said second blocks having a projection extending therefrom positioned in line with said recess at said distal end of said sidewall thereof;    said endwall of each of said second blocks having a recess formed therein, said recess positioned in-line with said projection extending from said distal end of sidewall thereof; and whereby said respective projections and said recesses upon said distal ends and said sidewalls, of any one of said respective first or second blocks, engages with mating of said recesses and said projections formed upon any first or second block which placed adjacent thereto in forming a wall.    
   
   
       8 . The two block building system of  claim 4  additionally comprising: 
 one of said sidewalls of each of said first blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said first blocks having a recess formed along said distal end thereof;    one of said sidewalls of each of said second blocks having a projection extending along said distal end thereof;    the other of said sidewalls of each of said second blocks having a recess formed along said distal end thereof;    said end wall of each of said first blocks having a projection extending therefrom positioned in-line with said recess at said distal end of said sidewall thereof;    said endwall of each of said first blocks having a recess formed therein positioned in-line with said projection extending from said distal end of said sidewall thereof;    said endwall of each of said second blocks having a projection extending therefrom positioned in line with said recess at said distal end of said sidewall thereof;    said endwall of each of said second blocks having a recess formed therein, said recess positioned in-line with said projection extending from said distal end of sidewall thereof; and whereby said respective projections and said recesses upon said distal ends and said sidewalls, of any one of said respective first or second blocks, engages with mating of said recesses and said projections formed upon any first or second block which placed adjacent thereto in forming a wall.    
   
   
       9 . The two block building system of  claim 1  additionally comprising: 
 said first block having a recess formed in a center portion of said second wall adjacent to said top surface;    said first block having a third wall extending between said sidewalls in between said endwall and said second wall;    said first block having a first cavity defined by an area between said endwall, said sidewalls, and said second wall;    said first block having a second cavity defined by an area between second wall, said sidewalls and said third wall;    a central portion of said endwall communicating with said top surface of said first block being frangible;    a center portion of said third wall communicating with said top surface being frangible; and    whereby said center portion and said central portion when removed align with said recess thereby proving a horizontal path of communication through said first block, whereby reinforcing bar or conduit may be communicated through said horizontal path when said first blocks are adjacently engaged in a wall.    
   
   
       10 . The two block building system of  claim 1  additionally comprising: 
 said first block having a recess formed in a center portion of said second wall adjacent to said top surface;    said first block having a third wall extending between said sidewalls in between said endwall and said second wall;    said first block having a first cavity defined by an area between said endwall, said sidewalls, and said second wall;    said first block having a second cavity defined by an area between second wall, said sidewalls and said third wall;    a central portion of said endwall communicating with said top surface of said first block being frangible;    a center portion of said third wall communicating with said top surface being frangible; and    whereby said center portion and said central portion when removed align with said recess thereby proving a horizontal path of communication through said first block, whereby reinforcing bar or conduit may be communicated through said horizontal path when said first blocks are adjacently engaged in a wall.    
   
   
       11 . The two block building system of  claim 6  additionally comprising: 
 said first block having a recess formed in a center portion of said second wall adjacent to said top surface;    said first block having a third wall extending between said sidewalls in between said endwall and said second wall;    said first block having a first cavity defined by an area between said endwall, said sidewalls, and said second wall;    said first block having a second cavity defined by an area between second wall, said sidewalls and said third wall;    a central portion of said endwall communicating with said top surface of said first block being frangible;    a center portion of said third wall communicating with said top surface being frangible; and    whereby said center portion and said central portion when removed align with said recess thereby proving a horizontal path of communication through said first block, whereby reinforcing bar or conduit may be communicated through said horizontal path when said first blocks are adjacently engaged in a wall.    
   
   
       12 . The two block building system of  claim 7  additionally comprising: 
 said first block having a recess formed in a center portion of said second wall adjacent to said top surface;    said first block having a third wall extending between said sidewalls in between said endwall and said second wall;    said first block having a first cavity defined by an area between said end wall, said sidewalls, and said third wall;    said first block having a second cavity defined by an area between second wall, said sidewalls and said third wall;    a central portion of said endwall communicating with said top surface of said first block being frangible;    a center portion of said third wall communicating with said top surface being frangible; and    whereby said center portion and said central portion when removed align with said recess thereby proving a horizontal path of communication through said first block, whereby reinforcing bar or conduit may be communicated through said horizontal path when said first blocks are adjacently engaged in a wall.    
   
   
       13 . The two block building system of  claim 8  additionally comprising: 
 said first block having a recess formed in a center portion of said second wall adjacent to said top surface;    said first block having a third wall extending between said sidewalls in between said endwall and said second wall;    said first block having a first cavity defined by an area between said endwall, said sidewalls, and said second wall;    said first block having a second cavity defined by an area between second wall, said sidewalls and said third wall;    a central portion of said endwall communicating with said top surface of said first block being frangible;    a center portion of said third wall communicating with said top surface being frangible; and    whereby said center portion and said central portion when removed align with said recess thereby proving a horizontal path of communication through said first block, whereby reinforcing bar or conduit may be communicated through said horizontal path when said first blocks are adjacently engaged in a wall.    
   
   
       14 . The two block building system of  claim 5  additionally comprising: 
 said first block having a recess formed in a center portion of said second wall adjacent to said top surface;    said first block having a third wall extending between said sidewalls in between said endwall and said second wall;    said first block having a first cavity defined by an area between said endwall, said sidewalls, and said second wall;    said first block having a second cavity defined by an area between second wall, said sidewalls and said third wall;    a central portion of said endwall communicating with said top surface of said first block being frangible;    a center portion of said third wall communicating with said top surface being frangible; and    whereby said center portion and said central portion when removed align with said recess thereby proving a horizontal path of communication through said first block, whereby reinforcing bar or conduit may be communicated through said horizontal path when said first blocks are adjacently engaged in a wall.    
   
   
       15 . The two block building system of  claim 3  additionally comprising: 
 a plurality of projections extending above said top surface of said first block being four; and    said plurality of projections extending above said top surface of said second block being two.    
   
   
       16 . The two block building system of  claim 7  additionally comprising: 
 a plurality of projections extending above said top surface of said first block being four; and    said plurality of projections extending above said top surface of said second block being two.    
   
   
       17 . The two block building system of  claim 12  additionally comprising: 
 a plurality of projections extending above said top surface of said first block being four projections formed in two parallel pairs; and    a first of said parallel pairs extending from said second wall, each of said first pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall, each of said second pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall, whereby overlying blocks engage with said projections of underlying blocks whether said overlying blocks are parralel or normal to said underlying blocks.    
   
   
       18 . The two block building system of  claim 4  additionally comprising: 
 a plurality of projections extending above said top surface of said first block being four projections formed in two parallel pairs; and    a first of said parallel pairs extending from said second wall, each of said first pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall, each of said second pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall.    
   
   
       19 . The two block building system of  claim 8  additionally comprising: 
 a plurality of projections extending above said top surface of said first block being four projections formed in two parallel pairs; and    a first of said parallel pairs extending from said second wall, each of said first pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall, each of said second pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall.    
   
   
       20 . The two block building system of  claim 13  additionally comprising: 
 a plurality of projections extending above said top surface of said first block being four projections formed in two parallel pairs; and    a first of said parallel pairs extending from said second wall, each of said first pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall, each of said second pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall, whereby overlying blocks engage with said projections of underlying blocks whether said overlying blocks are parralel or normal to said underlying blocks.    
   
   
       21 . The two block building system of  claim 19  additionally comprising: 
 said first block having a ledge extending from said second wall into said second cavity of said first block; and    said ledge having a width dimension adapted to engage interior side surfaces formed on said first or second parallel pairs of projections of underlying first blocks in a wall formed of stacked first blocks.    
   
   
       22 . The two block building system of  claim 20  additionally comprising: 
 said first block having a ledge extending from said second wall into said second cavity of said first block; and    said ledge having a width dimension adapted to engage interior side surfaces formed on said first or second parallel pairs of projections of underlying first blocks in a wall formed of stacked first blocks.    
   
   
       23 . The two block building system of  claim 4  additionally comprising: 
 a plurality of projections extending above said top surface of said first block being four projections formed in two parallel pairs; and    a first of said parallel pairs extending from said second wall, each of said first pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall, each of said second pair having one side surface adapted to contact an inner surface of a respective sidewall of an overlying first or second block forming said wall.    
   
   
       24 . The two-block building system of  claim 1  additionally comprising: 
 said two sidewalls of said first block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth;    said two sidewalls of said second block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth; and    whereby a side surface of a wall built with said first or second blocks may have a textured or smooth surface by rotation of said first and second blocks.    
   
   
       25 . The two-block building system of  claim 1  additionally comprising: 
 said two sidewalls of said first block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth;    said two sidewalls of said second block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth; and    whereby a side surface of a wall built with said first or second blocks may have a textured or smooth surface by rotation of said first and second blocks.    
   
   
       26 . The two-block building system of  claim 7  additionally comprising: 
 said two sidewalls of said first block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth;    said two sidewalls of said second block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth; and    whereby a side surface of a wall built with said first or second blocks may have a textured or smooth surface by rotation of said first and second blocks.    
   
   
       27 . The two-block building system of  claim 8  additionally comprising: 
 said two sidewalls of said first block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth;    said two sidewalls of said second block having exterior surfaces with one of said exterior surfaces being textured and the other of said exterior surfaces being smooth; and    whereby a side surface of a wall built with said first or second blocks may have a textured or smooth surface by rotation of said first and second blocks.