The room we had for our
recent vacation had a 400 pound dumb waiter that made staying on the
third floor easy and fun.
It's called the Stair Tamer. Invented by Ricky
Edwards you can buy them from his welding shop in Shiloh North Carolina.
He also sells a 1000 pound
model that would make loading hay bales in a barn loft a lot easier
than the old fashioned method.