Lifting Device for Confined Spaces

Abstract

A lifting fixture comprises a lifting affordance slidingly coupled to an upper horizontal beam assembly, a lower assembly comprising two spaced-apart horizontal beams defining an intervening gap, and a substantially vertical structural assembly connecting a first end of the upper beam assembly to a first end of the lower assembly. The horizontal beams include arrays of threaded holes for receiving various adapter plates. The first horizontal beam assembly comprises a motor driving a power threaded lead screw engaged to a lifting affordance such as a lifting eye. The motor may be controlled by wireless remote control. The lifting fixture allows lifting of an object stored beneath an overhead obstruction to be manipulated using a crane whose lifting axis is offset to the side of the overhead obstruction.

Dependencies are inferred from the claim text.