Patent ID: 8052120

Claim:
A vertical lift comprising: upper frame member, a lower frame member, and a lift mechanism configured to change vertical spacing between the upper and lower frame members from a first position to a second position, the upper or lower frame member or parts thereof being reconfigurable or configured to accept a modular unit; and at least one modular unit configured to operate in conjunction with the lower frame or the upper frame for changing functionality of one or both of the lower frame member or the upper frame member; wherein one of the modular units is a lower frame modular unit configured to attach to the lower frame to vary the functionality of the lower frame from resting immovably upon a support surface to: a) horizontally translatable relative to the support surface on wheels supported from first location to a second location or b) temporally lifted off the support floor onto a wheeled support and translatable from the first location to the second location and lowered back onto the support surface at the second location; wherein the lower frame includes a first and second frame bar spaced apart, each bar including a first and a second end, the lower frame including removable first and second cross-bars attached to the first and second frame bar, wherein the modular unit includes a removable third crossbar to replace the first cross-bar mountable and a fourth cross-bar to replace the second cross-bar; wherein a pair of wheels extends from the third crossbar and wherein a dolly lift mechanism is operably connects with the fourth cross-bar and the dolly lift mechanism is configured to lift the lower frame at the pair of walls.