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US 5,813,822 AGranted
Bucket and thumb combination as a quick decoupling attachment
AssigneePacific Services & Manufacturing
InventorWalter J. Pisco
Life of this patent
Estimating the term…
Abstract
A two-part implement combination for attachment to an excavator arm in which both implement parts share a common axis of rotation relative to one another and relative to the excavator arm and are independently movable. This allows a bucket and thumb combination to be quickly coupled or decoupled as a unit from an excavator arm without sacrificing independence of movement and a common rotational arc.
Claims6
A two-part implement combination for attachment to an excavator arm, comprising:
- a releasable quick coupling mechanism pivotably attached to the excavator arm and actuated for pivotal movement relative to the arm about a first axis;
- a first implement part attachable to the arm by the releasable quick coupling mechanism for pivotal movement relative to the arm about the first axis;
- a second implement part pivotally attached to the first implement part for independently-actuated pivotal movement relative to the first implement part and the arm about an axis substantially co-extensive with the first axis.
Dependencies are inferred from the claim text.