Method and apparatus for installation of underground ducts
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United States of America Patent
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N/A
Issued Date -
Mar 1, 2007
app pub date -
Aug 31, 2005
filing date -
Aug 31, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cyclic cable pulling machine includes a reaction plate having a flat front face, a frame secured to the reaction plate and a cable pulling mechanism including a hydraulic cylinder and a cable gripping mechanism, the cable gripping mechanism having jaws positioned to engage the cable during a pulling stroke, the hydraulic cylinder having an end abutting the reaction plate and an opposite end secured to the cable gripping mechanism for movement of the cable gripping mechanism away from the reaction plate during a pulling stroke and a powered clamping device attached to the frame which holds the cable during return movement of the cable pulling mechanism.
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