Patent ID: 11891792
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 17:
18. The building system as recited in claim 15 wherein at least a portion of said at least one coupling has at least a portion that is generally shaped like an I-beam having said first flange, said generally opposing second flange and said web coupling said first and second flanges, said first and second flanges being generally U-shaped in cross section and each comprising a first flange wall, a second flange wall and a flange joining portion for joining said first and second flange walls;
said plurality of internal wall surfaces comprising a first internal beam wall surface, a second internal beam wall surface and a third internal beam wall surface; and
said first and second flange walls each having at least one surface that becomes generally opposed or adjacent to said first internal beam wall surface and said second internal beam wall surface, respectively, said flange joining portion becoming generally opposed or adjacent said third internal beam wall surface.