Patent ID: 6773032
Filing Date: 2004-08-10
Classification: A61G

Abstract:
Ambulatory apparatus comprising:a framework mounted to a chassis for movement between sitting, standing and reclining conditions; leading, trailing and intermediate wheel assemblies attached to the chassis for supporting the chassis in a first wheeled condition comprising the leading and intermediate wheel assemblies engaged for wheeled movement against a support surface and a second wheeled condition comprising the trailing and intermediate wheel assemblies engaged for wheeled movement against a support surface; the chassis and the framework defining a center of gravity that is centered at the intermediate wheel assembly in each of the sitting and reclining conditions of the framework, and that is centered at the leading wheel assembly in the standing condition of the framework; and an attached movable ballast that is disposed in relation to the framework causing the defined center of gravity at the intermediate wheel assembly in each of the sitting and reclining conditions of the framework, and that adjusts so as to be disposed in relation to the framework causing the defined center of gravity at the leading wheel assembly in the standing condition of the framework.