Method for repairing or preventing damage to a bushing
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United States of America Patent
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Issued Date -
Sep 1, 2005
app pub date -
Apr 18, 2005
filing date -
Oct 17, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for repairing or preventing damage to a bushing welded into a container of the coolant circuit of a water-cooled nuclear reactor by an inner welding seam, especially damage to an instrumentation pipe guided through the wall of a reactor pressure reservoir of a pressurized water reactor. The damage being caused in a hazardous area, especially in the region of the welding seam, by the action of the water inside the bushing or inside the container, on the surface thereof which is in contact with the water. At least one of the surfaces is protected against the action of the water by a cover) which is mechanically fixed to the bushing and therefore not in the form of a weld connection.
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