Operative arm excavator including linkage generally interposed between bucket and hydraulic actuator
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United States of America Patent
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-
Oct 17, 2006
Grant Date -
Aug 25, 2005
app pub date -
Feb 11, 2005
filing date -
Feb 19, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An operative arm of an earth moving machine includes a dipper stick having a distal end, a bucket coupled to the distal end of the dipper stick, a hydraulic actuator coupled to the dipper stick, and a linkage generally interposed between the bucket and the hydraulic actuator. The linkage includes the following items: (i) a first lever rotatably coupled to the dipper stick and the hydraulic actuator, (ii) a linear actuator rotatably coupled to the dipper stick, (iii) a second lever rotatably coupled to the first lever and the linear actuator, and (iv) a bucket lever interconnecting the second lever, the linear actuator and the bucket.
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