US 6,962,236: a better way to get into your attic?
An embodiment, the SpaceLift 6000 attic lift system, features a lift platform carried by a frame that mounts into a standard 22-1/2 x 54-inch framed opening in the ceiling. The SpaceLift frame includes a mechanical drive train that lifts and lowers the lift platform using four aviation-grade cables. The lift platform is big enough to carry most household storage items with a weight capacity of 75 pounds. The integrated stairway disappears into the ceiling when not in use. When the stairway is deployed, the lift platform remains stowed in the attic out of the way of the access opening, permitting unimpeded use of the stairway. Then, when needed to transport storage items, the lift platform automatically moves into position above the attic opening and travels down the guide track of the stairway. In reverse process, the lift platform returns to the stowed position enabling the homeowner to resume use of the stairway access.