Patent ID: 8602169
Filing Date: 2013-12-10
Classification: B64C,B64D,B66B,Y02T

Abstract:
1. An elevator system for a fuselage of an aircraft, the system comprising: a cabin; at least one fixed rail configured to be coupled to the fuselage structure; at least one floating rail movably coupled with respect to the fixed rail, the cabin being movably coupled to the floating rail; a first pulley system operable to move the cabin between an upper position and a lower position, the at least one floating rail moving with respect to the fixed rail and the cabin moving with respect to the at least one floating rail during at least a portion of the cabin's movement between the upper and lower positions; and a second pulley system including at least one secondary cable, at least one floating pulley coupled to the floating rail, and at least one secondary drum, the secondary cable having a first end coupled to the cabin, the floating pulley being between the first end of the secondary cable and the secondary drum.