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Jet pump sensing line T-bolt clamp electrode discharge machining tool

  • US 6,233,301 B1
  • Filed: 09/25/1998
  • Issued: 05/15/2001
  • Est. Priority Date: 09/25/1998
  • Status: Expired due to Fees
First Claim
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1. An electrode discharge machining apparatus for machining slots in a jet pump diffuser in a nuclear reactor pressure vessel at positions within a plane formed by a center of the diffuser and a sensing line, the jet pump diffuser having a center, a diffuser sensing line, and a sensing line standoff coupling the sensing line to the diffuser, said apparatus comprising:

  • a housing;

    a plurality of clamp assemblies coupled to said housing;

    a hook assembly coupled to said housing and configured to engage a jet pump diffuser sensing line standoff so that said apparatus is positioned at an angle from a plane formed by the center of the diffuser and the sensing line; and

    a plurality of electrode assemblies coupled to said housing.

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