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Concrete retaining wall built from stacked concrete blocks of different configurations

  • US 5,791,827 A
  • Filed: 11/06/1995
  • Issued: 08/11/1998
  • Est. Priority Date: 04/14/1994
  • Status: Expired due to Fees
First Claim
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1. A retaining wall for retaining a bank of earth, said retaining wall comprising:

  • (A) a lower tier of a plurality of separate abutting bottom blocks;

    (B) at least one intermediate-tier of a plurality of separate abutting intermediate blocks; and

    (C) an upper tier of a plurality of separate abutting upper blocks;

    wherein(i) each block of said lower tier of abutting blocks comprises a concrete block having six generally-planar faces, consisting of two planar end faces, a front planar face and a rear planar face, said front planar face and said rear planar face having a plurality of drainage ducts extending therebetween, an upper planar face and a lower planar face, said upper planar face differing from said lower planar face by including a shelf cantilevered over the rear face thereof, and a locking cap adjacent said front face thereof, said locking cap extending between said two planar end faces, said locking cap comprising an upwardly-extending lock curb terminating in a lock face, said lock face being spaced from, but being proximate to, said-front face of said block;

    (ii) each block in said at least one intermediate tier of blocks comprises a concrete block having six generally-planar faces consisting of two planar end faces, a front planar face and a rear planar face, said front planar face and said rear planar face having a plurality of drainage ducts extending therebetween, an upper planar face and a lower planar face, said upper planar face differing from said lower planar face by including a locking cap extending between said two planar end faces, said locking cap comprising an upwardly-sloping ramp terminating in an abutment face which is disposed a predetermined distance between said rear planar face and said front planar face; and

    (iii) each block in said upper tier of blocks comprises a concrete block having six generally-planar faces, consisting of two planar end faces, a front planar face and a rear planar face, said front planar face and said rear planar face having a plurality of drainage ducts extending therebetween, an upper planar face and a lower planar face, said upper planar face differing from said lower planar face by including a locking cap adjacent said front planar face, said locking cap extending between said two planar end faces, said locking cap comprising an upwardly-extending lock curb terminating in a lock face having a back face, said lock face being spaced from, but being proximate to, said front planar face of said block;

    wherein(iv) locking cooperation between said separate blocks in said at least one intermediate tier of blocks, which are juxtaposed atop associated separate blocks of said lower tier of blocks, comprises the lower face of each associated intermediate block which is adjacent said rear planar face of said associated intermediate block being supported on said cantilevered shelf of an associated lower block, and the front edge, which intersects the front planar face and the bottom planar face of said intermediate blocs, being abutted against said back face of said lock face of said lock curb of said associated lower block; and

    wherein(v) locking cooperation between said separate blocks in said upper tier of blocks, which are juxtaposed atop associated separate blocks of said at least one intermediate tier of blocks, comprises the front edge, which intersects the front planar face and the bottom planar face of said upper block being abutted against said abutment face of said upwardly sloping ramp of said locking cap of said associated intermediate block.

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