PIPE EXTRACTION ASSISTED BY PRE-STRESSED STRAND
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United States of America Patent
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Issued Date -
Oct 27, 2022
app pub date -
Jul 12, 2022
filing date -
Jul 12, 2022
priority date (Note) -
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Abstract
A machine for extracting a ductile pipe. The machine has a vise which can grip the pipe, and a wire clamp. Each of the wire clamp and vise are supported on a carriage which is movable relative to a frame. This enables the vise to grip and pull the ductile pipe. Additionally, a wire strand may be disposed through the pipe from a far end to the end at which the machine is placed. The wire clamp allows the machine to pre-stress the strand to improve the extraction of the ductile pipe.
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