Patent ID: 7191571

Claim:
A modular construction block comprising: a preform having a top surface, a bottom surface, opposite side surfaces, and opposite end surfaces; and said preform having; a first horizontal passageway extending between said opposite end surfaces, said first horizontal passageway defining openings on said opposite end surfaces spaced from said top surface, said bottom surface and said opposite side surfaces; a pair of spaced-apart vertical passageways extending from said top surface to said bottom surface and intersecting said first horizontal passageway, said pair of spaced-apart vertical passageways defining openings on said top surface and said bottom surface spaced from said opposite side surfaces and said opposite end surfaces; a pair of spaced-apart second horizontal passageways extending between said opposite side surfaces and intersecting said first horizontal passageway and said pair of vertical passageways, said pair of spaced-apart second horizontal passageways defining openings on said opposite side surfaces spaced from said top surface, said bottom surface, and said opposite end surfaces; and wherein said preform comprises a foam material.