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US 4,107,894 AGranted
Interlocking cementitious building blocks
OwnerWayne L. Mullinsinventor
Life of this patent
Estimating the term…
Abstract
Cementitious building blocks having upstanding male projections on one planar surface and recessed female cavities on the opposite surface. The male projections and female cavities are disposed in special identical geometric arrays which allows interlocked mortarless assembly of a plurality of such blocks for the construction of buildings, walls and the like. The blocks are further provided with passages extending therethrough which are especially configured for weight and aesthetic considerations.
Claims21
An interlocking building block comprising:
- (a) a cementitious body of rectangular solid configuration having an upper horizontal surface and a lower horizontal surface;
- (b) eight (8) projections integrally formed to extend normally from the upper horizontal surface of said body, said projections arranged on the upper surface in a predetermined geometric array;
- (c) eight (8) recesses formed in the lower surface of said body and configured to be complemental to said projections, said recesses arranged on the lower surface in the same geometric array as said projections are arranged on the upper surface of said body;
- and
- (d) a spaced pair of passages formed through said body so as to extend between the upper and lower horizontal surfaces thereof, said passages formed in cross-like shapes in horizontal cross section to provide said body with eight (8) vertically disposed cementitious columnar formations for supporting said projections and in which said recesses are formed, each of said vertical columnar formations comprises,
- I. a shelf-like portion on the upwardly disposed end for supporting one of said projections,
- Ii. a reduced mass portion on the downwardly disposed end in which one of said recesses is formed, and
- Iii. a transition portion depending angularly from said shelf-like portion and merging with said reduced mass portion.
5 more elements
An interlocking building block comprising:
- (a) a cementitious body of rectangular solid configuration having an upper horizontal surface and a lower horizontal surface;
- (b) six (6) projections integrally formed to extend normally from the upper horizontal surface of said body, said projections arranged on the upper surface in a predetermined geometric array;
- (c) six (6) recesses formed in the lower surface of said body and configured to be complemental to said projections, said recesses arranged on the lower surface in the same geometric array as said projections are arranged on the upper surface of said body;
- (d) a first passage formed through said body so as to extend between the upper and lower surfaces thereof, said passage formed in a cross-like shape in horizontal cross section to provide said body with four (4) vertically disposed cementitious columnar formations for supporting four (4) of said projections and in which four (4) of said recesses are formed;
- (e) a second passage formed through said body so as to extend between the upper and lower surfaces and having one open side to provide said body with one open end, said second passage configured in horizontal cross section to have a longitudinally extending open portion and an opposed pair of transverse open portions to provide said body with two additional vertically disposed cementitious columnar formations for supporting the other two (2) of said projections and in which the other two (2) of said recesses are formed;
- and
- (f) each of said vertical columnar formations comprising,
- I. a shelf-like portion on the upwardly disposed end for supporting one of said projections,
- Ii. a reduced mass portion on the downwardly disposed end in which one of said recesses is formed, and
- Iii. a transition portion depending angularly from said shelf-like portion and merging with said reduced mass portion.
7 more elements
An interlocking building block comprising:
- (a) a cementitious body having an upper horizontal surface, a lower horizontal surface, a pair of opposed vertical face surfaces, and an opposed pair of vertical end surfaces;
- (b) two (2) projections integrally formed to extend normally from the upper horizontal surface of said body, said projections arranged in a predetermined geometric array on said upper surface;
- (c) two (2) recesses formed in the lower surface of said body and configured to be complemental to said projections, said recesses arranged on the lower surface in the same geometric array as said projections are arranged on the upper surface of said body;
- and
- (d) a passage formed through said body so as to extend between the upper and lower surfaces and having one open side extending to one of the vertical end surfaces of said body, said passage configured in horizontal cross section to have one open portion extending toward the closed one of the vertical end surfaces of said body and to have an opposed pair of open portions extending towards the opposed pair of vertical face surfaces to provide said body with a pair of vertically disposed cementitious columnar formations for supporting said projections and in which said recesses are formed, each of said vertical columnar formations comprising,
- I. a shelf-like portion on the upwardly disposed end for supporting one of said projections,
- Ii. a reduced mass portion on the downwardly disposed end in which one of said recesses is formed, and
- Iii. a transition portion depending angularly from said shelf-like portion and merging with said reduced mass portion.
5 more elements
An interlocking building block comprising:
- (a) a cementitious body having an upper horizontal surface, a lower horizontal surface, an opposed pair of vertical face surfaces and an opposed pair of vertical end surfaces;
- (b) four (4) projections integrally formed to extend normally from the upper horizontal surface of said body, said projections arranged in a predetermined geometric array on said upper surface;
- (c) four (4) recesses formed in the lower surface of said body and configured to be complemental to said projections, said recesses arranged on the lower surface in the same geometric array as said projections are arranged on the upper surface of said body;
- and
- (d) a passage formed through said body so as to extend between the upper and lower surfaces thereof, said passage formed in a cross-like horizontal cross sectional shape to provide said body with four (4) vertically disposed cementitious columnar formations for supporting said projections and in which said recesses are formed, each of said vertical columnar formations comprising,
- I. a shelf-like portion on the upwardly disposed end for supporting one of said projections,
- Ii. a reduced mass portion on the downwardly disposed end in which one of said recesses is formed, and
- Iii. a transition portion depending angularly from said shelf-like portion and merging with said reduced mass portion.
5 more elements
Dependencies are inferred from the claim text.