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Biased insert for installing data transmission components in downhole drilling pipe

  • US 7,201,240 B2
  • Filed: 07/27/2004
  • Issued: 04/10/2007
  • Est. Priority Date: 07/27/2004
  • Status: Active Grant
First Claim
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1. An apparatus for retrofitting a section of drill pipe with a transmission line, the apparatus comprising:

  • an insert for insertion into at least one of the box end and the pin end of a section of drill pipe, wherein the insert comprises a mount portion and a slide portion;

    a transmission element mounted in the slide portion; and

    a plurality of biasing elements for effecting a bias between the mount portion and the slide portion;

    wherein the insert is inserted into the inside diameter of a section of drill pipe and narrows a central bore of the drill pipe;

    wherein the plurality of biasing elements are located between the slide and mounting portions and are diametrically opposed from one another.

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