US Patent 9771025 Stowable stair carrier with lift assist mechanism

A system includes a structure having a wall, a doorway and a door that is repositionable between a first position wherein the door is clear of the doorway and a second position wherein the door occludes the doorway. The system also includes a stair carrier attached to the structure. A stair may be connected to the stair carrier. The stair carrier is repositionable between a first position wherein the entirety of the stair carrier is disposed on a first side of the wall and a second position wherein a portion of the stair carrier extends through the doorway to a second side of the wall. The door is fully operable between the first position and the second position both when the stair carrier is in the first position and in the second position.