Method and apparatus for detecting deflect in liquid metal handling instruments

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United States of America Patent

PATENT NO 4202202
SERIAL NO

05974518

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Method and apparatus for detecting the position of defects in a liquid metal handling instruments such as sodium-heated steam generator, which has a conduit structure invisible from the outside of the instrument. The conduit structure, which is used in a liquid metal, is positioned in a vessel filled with an inert gas. The vessel is sealed whereas a liquid inactive to the liquid metal is filled in the conduit structure. If there exists a defective spot in the conduit structure, the liquid will flow out of the defective spot, which is exactly detected by application of a fiber scope.

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Patent Owner(s)

  • JIGYODAN, DORYOKURO KAKUNENRYO KAIHATSU

International Classification(s)

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  • 1978 Application Filing Year
  • G01M Class
  • 116 Applications Filed
  • 0 Patents Issued To-Date
  • 0 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19780255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yagisawa, Hideji Mito, JP 1 3

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  • 3 Citation Count
  • G01M Class
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  • 45 Age
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