Space structures for building purposes

Claim 1

A SPACE STRUCTURE FOR BUILDING PURPOSES WHEREIN THERE IS A PLURALITY OF PREFABRICATED UNITS EACH COMPRISING AT LEAST ONE LONGITUDINAL RIB PORTION AND SUCCESSIVE PAIRS OF TRIANGULAR WALL PORTIONS JOINING SAID RIB PORTION ALONG ONE MARGIN AND EXTENDING LATERALLY FROM SAID ONE RIB PORTION, THE WALL PORTIONS OF SAID SUCCESSIVE PAIRS LYING IN TWO DIVERGENT PLANES; WHEREIN A FIRST SERIES OF SAID UNITS IS DISPOSED WITH THEIR SAID ONE RIB PORTIONS IN SUBSTANTIALLY PARALLEL RELATION SUBSTANTIALLY IN ONE LAYER AT ONE SIDE OF SAID STRUCTURE AND THEIR SAID WALL PORTIONS EXTENDING DEPTHWISE OF SAID STRUCTURE; A SECOND SERIES OF SAID UNITS IS DISPOSED WITH THEIR SAID ONE RIB PORTIONS LOCATED IN SUBSTANTIALLY PARALLEL RELATION NORMALLY TO THE RIB PORTIONS OF SAID FIRST SERIES OF UNITS AND SUBSTANTIALLY IN ANOTHER LAYER AT THE OPPOSITE SIDE OF SAID STRUCTURE, SAID WALL PORTIONS OF THE UNITS OF SAID SECOND SERIES ALSO EXTENDING DEPTHWISE OF SAID STRUCTURE; AND WHEREIN EACH SAID PAIR OF TRIANGULAR WALL PORTIONS OF EACH UNIT OF SAID FIRST SERIES OF UNITS IS CONNECTED WITH A PAIR OF SAID WALL PORTIONS OF A UNIT OF SAID SECOND SERIES OF UNITS THEREBY TO FORM A TETRAHEDRAL CELL.