Progressive linkage for excavator thumb
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 26, 2010
Issued Date -
N/A
app pub date -
Aug 15, 2008
filing date -
Sep 21, 2007
priority date (Note) -
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Abstract
An improved dipper stick, tool, and thumb combination includes a progressive linkage for connecting the thumb to a thumb actuator wherein the pivot axis of the thumb idler link connection is spaced from the pivot axis of the tool idler link connection. The pivot axis of the thumb idler link connection may be offset outwardly from the inner surface of the dipper stick. A mounting plate may be connected to the inner surface of the dipper stick to locate the pivot axis in the offset position.
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