Patent ID: 9732519
Date: 2017-08-15
CPC Classifications: E04B

Claim:
1. A plurality of blocks forming a wall comprising, a first block comprising, a pair of outer members spaced apart by at least two risers, having a first and a second face, inward from outer member ends forming void center between outer members and risers with the block open at its top and bottom with the risers extending vertically substantially above the outer members, the outer members having vertical flat inner surfaces in face to face contact with vertical flat riser surfaces that extend with the risers extending above the outer members, a similar second block slidably receives the risers of the first block wherein the first face of at least one riser of the first block at least partially overlaps the second face of at least one riser of the second block as the risers extend into a center of the second block wherein, the risers extend from the bottom of the block to beyond and above the outer member tops, and wherein, the second said block is stacked vertically adjacent on the first said block and the risers of the first said block extend into the center of the second said block offset from the risers of the first said block further comprising a substantially horizontal fastener through said second block and into said risers that are received therein thereby connecting the blocks together.