Static structures (e.g. – buildings) – Intersection of wall to floor – ceiling – roof – or another wall – Block type or modular panel type
Patent
1982-02-17
1984-10-09
Bell, J. Karl
Static structures (e.g., buildings)
Intersection of wall to floor, ceiling, roof, or another wall
Block type or modular panel type
52591, E04C 110
Patent
active
044753268
ABSTRACT:
A family of interlocking polyurethane foam building blocks configured similarly to conventional concrete building blocks. Tongues and grooves are formed on the end faces of a universal block in such a manner that the end faces of two identical blocks will engage with one another when the blocks are longitudinally aligned and the end faces are in abutment. The tongues and grooves are configured so that the building blocks may be rotated about any axis of the block and still interlock with an identical block. The upper and lower surfaces of the universal block are formed with projections and recesses configured to engage with the projections and recesses on an abutting surface of an identical block that is longitudinally offset by one-half the length of the block. The projections and recesses are configured and arranged to allow the universal block to be rotated about any axis of the block and still interlock with an identical block. A corner block, half block, three-quarter block, pilaster block, and bond beam block constitute the rest of the family of building blocks. These blocks are configured to interlock with the universal block and allow construction of a walled structure using conventional concrete block building techniques.
REFERENCES:
patent: 460177 (1891-09-01), Cook
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patent: 2209564 (1940-07-01), Grubb
patent: 2209730 (1940-07-01), Hausner
patent: 2619829 (1952-12-01), Tatum
patent: 3895148 (1975-07-01), Chang
patent: 4041670 (1977-08-01), Kaplan
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