DEVICE FOR THE OVERDRILLING OF UNDERGROUND LINES
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United States of America Patent
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Issued Date -
Feb 1, 2007
app pub date -
May 24, 2006
filing date -
May 25, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device for overdrilling an underground line includes a rotating push and/or pull linkage having a front end, and a hollow-cylindrical scavenging head which is connected to the front end of the linkage and is equipped with nozzles. At least one of the nozzles has an outlet axis extending at an inclination in a direction of the line in a plane of a longitudinal axis of the scavenging head. In this way, the orifices of such nozzles which optionally also point opposite to the direction of advance are directed onto the line section.
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