Accession Number : ADD015695
Title : Adjustable Height Stairway.
Descriptive Note : Patent application, filed 14 Sep 92,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC
Personal Author(s) : Nebel, Kyle J
Report Date : 14 Sep 1992
Pagination or Media Count : 22
Abstract : The invention is an adjustable height stairway having two parallel elongate lower frame members and two parallel elongate upper frame members swingable on a base. The upper frame members have wave-like edges that can fit with complimentary wave-like edges on the lower frame members. A set of steps parallel to the base has pivotal connections to each frame member at peaks of the wave-like edges. At a first angular position, the stairway is in a collapsed configuration wherein the pivotal connections are coplanar and the steps lie in a common plane to form a runway. In a second angular position the stairway is in an expanded configuration form a ladder or set of stairs.
Descriptors : *TANK TURRETS, *PATENT APPLICATIONS, *COMPUTERIZED SIMULATION, MOTION, MANNED, SIMULATORS, ARMORED VEHICLES, PLATFORMS
Subject Categories : Combat Vehicles
Computer Programming and Software
Distribution Statement : APPROVED FOR PUBLIC RELEASE