Patent ID: 8443566

Claim:
A method for connecting unitary cellular building blocks comprising: aligning the distal ends of one beam from three blocks each having three equal length beams with a proximal end and a distal end and a top surface and a bottom surface, wherein the three beams of each block are joined in unitary fashion at their proximal ends, at least one leg extending substantially perpendicular from the top and bottom surfaces of each of the three beams of each of the three blocks, each leg having an inner edge extending from the top surfaces of the beams shaped complementary to an inner edge extending from the bottom surfaces of the beams; and aligning the inner edges of at least one leg extending substantially perpendicular from a bottom surface of each of three beams of a fourth block with the inner edges of the at least one leg extending substantially perpendicular from the top surface of each of the three beams of each of the three blocks, wherein the inner edges of the fourth block legs extending from the bottom surface of the fourth block beam is shaped complementary to the inner edges of the legs of the three blocks extending from the top surface of the beams of the three blocks.