153,953 describes a lift which must be disassembled for transport. In addition, the individual pieces are relatively large and cumbersome. The base must be large enough to surround a wheelchair, and the column does not telescope, so it must be tall enough to...
being rotatively mounted below a respective vertical lifting column and rotatable between a first position where the mobile trolley extends generally perpendicular to the horizontal bar and a second position where the mobile trolley extends generally parallel to the horizontal bar; a lift actuator ...
Initial practice with powered mobility should be done in an open area with the wheelchair controls adjusted to a slow speed. As the individual's skills progress, he or she should be instructed in using the chair on uneven terrain, around obstacles, in public places, and on elevators. The ...