Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent
1998-03-11
1999-09-07
Lisehora, James A.
Road structure, process, or apparatus
Pavement
Vault cover-closure
254130, 294 17, E02D 2914, B66F 300, B65G 712
Patent
active
059476338
ABSTRACT:
A hand-operated tool for removing and installing manhole covers or similar item is disclosed. The tool comprises two leg members, each pivotally connected at their upper ends to the opposite ends of a crossmember. Attached at approximately the mid-point of each leg member is a horizontally aligned chain designed to limit the distance the leg members can be spread apart during operation. A second chain is attached at one end to approximately the mid-point of the cross-member. During operation, the second chain hangs vertically from the crossmember. A hook is attached to the opposite end of the hook which either directly engages the edge of the cover or a lifting element attached to the cover. The chain is adjustable in length so that the leg members may be spread apart on opposite sides of the cover. During use, the second chain is attached to the cover and the tool is moved to one side which lifts and moves the cover to the desired position. The same movement is used to install the cover.
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Craine Dean A.
Hartmann Gary S.
Lisehora James A.
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