Excavating – Combined or convertible – Combined with clamp – grapple – or shear
Reexamination Certificate
2008-07-28
2009-11-17
Pezzuto, Robert E (Department: 3671)
Excavating
Combined or convertible
Combined with clamp, grapple, or shear
C414S729000
Reexamination Certificate
active
07617619
ABSTRACT:
An prehensile excavator bucket includes a bucket and a reinforced thumb hingedly affixed to the bucket and that is controlled in conjunction with the bucket for purposes including seizing very heavy items. The thumb may be a single internally-static unit having multiple tines reinforced with metal tubes. The prehensile bucket may have a quick couple receptor so that it can be quickly attached to and detached from an excavator stick with a quick couple mechanism. Because the thumb is permanently attached to the bucket, the thumb and bucket together form a single unit strong enough for gripping and moving very heavy items.
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Martin brochure for Hydraulic Quick Coupler.
Martin brochure for Twin Thumb Bucket.
Chapman Daniel
Entek Manufacturing Inc.
Jackson & Walker, LLP
Miller Mark H.
Pezzuto Robert E
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