Rock and coral demolition tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 3, 1991
Grant Date -
N/A
app pub date -
Dec 15, 1989
filing date -
Dec 15, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An attachment for a hydraulic excavator including a pair of jaws mounted on a frame and having offset points or projections on the jaws to apply localized pressure onto a rock or coral piece for breaking the workpiece. Both jaws are movable and operable by individual hydraulic cylinders. The direction of thrust against the jaws being tangential to the arc of movement of the pins for connecting the cylinders to the jaws at a location approximately midway of the operational arc of the jaws.
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Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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