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