Method and device for regenerating the interior surfaces of conduits by means of thermal spraying of metals
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United States of America Patent
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Apr 11, 2017
Grant Date -
May 28, 2015
app pub date -
Feb 5, 2015
filing date -
Nov 4, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for regeneration of internal conduit surfaces by thermal projection of metals, includes inserting a device including a vehicle having a rolling assembly to permit rolling of the vehicle and carrying a thermal projection system, through a manhole in a conduit installation, including the steps of inserting the device in a conduit with the rolling assembly in a retracted position, and expanding the rolling assembly inside the conduit until the device is centered in the conduit; inserting electrical, pneumatic and/or hydraulic conduits and conduits for supplying metal to be thermally projected, through the manhole, such that the conduits are connected with the vehicle; positioning a regeneration device including the thermal projection system connected with the vehicle by a remote-control pulling system in a particular position to be regenerated; thermally projecting metal from the regeneration device; advancing the vehicle and connected regeneration device to a new regeneration position.
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