Patent ID: 9315992
Filing Date: 2016-04-19
CPC Classification: E04B,E04C

Claim Text:
1. A structural block system for constructing arcuate walls comprising: a wall-block comprising: b. at least one vertical support groove in said left lateral face of said wall-block body and at least one vertical support groove in said right lateral face of said block body, configured to form a vertical support aperture along a lateral face joint between two said structural blocks laid side-by-side wherein said vertical support grooves lie at the same arc radius across said width of said wall-block body; c. a lateral groove forming an arc across said top face of said width of said wall-block, wherein said arcuate lateral groove possesses the same angle measure as the anterior face and passes across said vertical grooves in said lateral faces; and d. means to mechanically mate a plurality of said wall-block bodies together in a friction fit arrangement comprising at least one male connector and at least one female receiver configured to receive said male connector further comprising a large-wall-block comprising: a. a large-wall-block body cast from a cementitious product, said large-wall-block body having height, a convex anterior face, a concave posterior face, a length, from said convex anterior face to said concave posterior face, a top face, a bottom face, a height from said top face to said bottom face, a left lateral face, a right lateral face, a width from said left lateral face to said right lateral face wherein said width is substantially twice the width of said wall-block and decreases from said anterior face to said posterior face; b. at least one vertical support groove in said left lateral face of said large-wall-block body and at least one vertical support groove in said right lateral face of said block body, configured to form a vertical aperture along a lateral face joint between two said structural blocks laid side-by-side wherein said vertical support grooves lie at the same arc radius across said width of said wall-block body; and c. means to mechanically mate a plurality of said large-wall block bodies together in a friction fit arrangement comprising at least one male connector and at least one female receiver configured to receive said male connector; d. a central aperture from said top face through said bottom face which lies along the same arc radius as said vertical grooves in said lateral faces; further comprising a roof-block having less compressive strength than said large-wall-block and said wall-block wherein said roof block is laid between a top layer of said wall-blocks assembled as a wall and a mine roof in an underground wall assembly.