Patent ID: 8156691

Claim:
A modular building structure comprising: a plurality of walls including a front wall; a ceiling positioned at a top portion of each of the walls, the ceiling having a top surface; and a landing connected to the ceiling by one or more pin assemblies, wherein the one or more pin assemblies are configured to enable the landing to be moved between a retracted position and an extended position, wherein an upper surface of the landing is adjacent to a top surface of the ceiling when the landing is in the retracted position, wherein the landing extends from the front wall when the landing is in the extended position, wherein a pin assembly of the one or more pin assemblies comprises: a pin, a cell-side portion connected to the ceiling, the cell-side portion comprising a receiving structure and a first supporting structure connected to a bottom side of the receiving structure, and a landing-side portion connected to the landing, the landing-side portion comprising a pin-receiving structure proximate to the receiving structure of the cell-side portion, a second supporting structure and a first headed concrete anchor.