Hole engaging multiple block lifting device

Details Hole engaging multiple block lifting device Hole engaging multiple block lifting device

2006-06-27

2006-06-27

Lillis, Eileen D. (Department: 3652)

Handling: hand and hoist-line implements

Grapple

Expanding

C294S063100

Reexamination Certificate

active

07066512

ABSTRACT:
A concrete block lifting device used to lift at least two blocks off a pallet for repositioning on a wall. The device includes a rigid, horizontal, support bar with a block gripping assembly attached thereto designed to selectively attach to blocks on a pallet and then securely engage the blocks when the device is lifted by the backhoe. The block gripping assembly includes a insert member perpendicularly aligned and extending downward from the support bar. Mounted pivotally on each insert member is an actuator arm. The upper end of the actuator arm is pivotally connected to a linking arm and a release handle. The upper ends of two linking arms converge and attach to a central plate. A cable connects the central plate to a bucket on a backhoe. When the central plate is lifted, the linking arms force the upper end of the actuator arms inward which forces the lower ends of the actuator arm outward to engage the inside wall of a central hole formed on the block.

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