Barrel clamp
AssigneeRo-Von Steel Ltd.
InventorGilles Rouleau
Life of this patent
Estimating the term…
Abstract
There is disclosed a lifting device particularly suited for lifting plastic drums or barrels while maintaining the same vertically upright and transporting the same to another location. The lifting device is unique in that it employs a locking bar which is capable of locking the device in both the open position preparatory for securing the barrel, and the grasping/lifting position. It maintains either of these locked positions regardless of whether an upward force is exerted upon the pair of pivotal tongs. Unlike other pivoted lifting devices or tongs, the present invention uses a minimal amount of friction force to lift a barrel, such that the fragile resilient sides of a plastic barrel are not damaged.
Claims7
A device for handling and transporting barrels comprising:
- a pair of pivotally mounted tongs mounted adjacent each end of at least one tie-bar;
- each of said tongs including a grasping means at its lower end adapted to grasp a barrel below its upper rim;
- a locking arm and a first clevis pivotally mounted to an upper end of one of said tongs;
- a second clevis pivotally mounted by a horizontally disposed pin to an upper end of a second of said tongs;
- said locking arm including at least two indentations on its lower side, either of said indentations being adapted to engage said horizontally disposed pin of said second clevis in a locked position;
- wherein when, in operation, one of said indentations of said locking arm is engaged on said horizontally disposed pin, said tongs are locked in an open position;
- and
- when another of said indentations is engaged on said horizontally disposed pin, said tongs are locked in a grasping/lifting position, regardless of any upward force exerted on said tongs.
Dependencies are inferred from the claim text.