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US 6,439,628 B1Granted
Manhole cover removal tool
AssigneeAT&T Corp.
InventorsHossein Eslambolchi, John Sinclair Huffman
Life of this patent
Estimating the term…
Abstract
A manhole cover lifting tool includes three separate pieces that are mated together to allow for the entire cover to be lifted in one motion. A pair of hook arms are inserted over opposing holes in the manhole cover and joined together. A lifting arm is then attached to the joined hook arms and used to remove the cover from the opening.
Claims3
A manhole cover lifting tool for lifting a manhole cover having at least two lifting holes or slots formed in the surface thereof, said tool comprising
- a first hook arm having a J-shaped first end and an opposing second end, said J-shaped first end for engaging a first lifting hole in a manhole cover;
- a second hook arm having a J-shaped first end and an opposing second end, said J-shaped first end for engaging a second lifting hole in a manhole cover and said second end for attaching to the first hook arm second end;
- a threaded lifting arm attached to one of said first and second hook arms, said threaded lifting arm used to lift the manhole cover engaged by said first and second hook arms, wherein either one of the first and second hook arms includes a lifting arm connector for engaging the lift arm in a removable attachment, said threaded lifting arm connector including a threaded end portion for mating with said threaded lifting arm.
Dependencies are inferred from the claim text.