Fine motion control rod drive mechanism handling apparatus and method of handling fine motion control rod drive mechanism
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United States of America Patent
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Dec 23, 2014
Issued Date -
N/A
app pub date -
Feb 18, 2011
filing date -
Mar 31, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A fine motion control rod drive mechanism handling apparatus attaches a fine motion control rod drive mechanism having a control rod drive mechanism body, a spool piece, a motor bracket and a motor unit to a reactor pressure vessel, and detaches it from the reactor pressure vessel. The fine motion control rod drive mechanism handling apparatus is provided with a bolt wrench assembly, a motor unit attachment mounted to the bolt wrench assembly, for meshing a first gear of a first gear coupling on a spool piece side with a second gear of a second gear coupling on a motor unit side, and a rotation mechanism mounted to the bolt wrench assembly, for rotating the motor unit attachment.
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