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Sintered polycrystalline diamond tubular members

  • US 8,640,768 B2
  • Filed: 06/21/2011
  • Issued: 02/04/2014
  • Est. Priority Date: 10/29/2010
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • an external tubular member comprising an external outside surface and an external inside surface joined by an external wall thickness;

    the external wall thickness comprises external sintered polycrystalline diamond;

    an internal member residing within the external tubular member and comprising an internal outside surface and an internal width; and

    the internal width comprises internal sintered polycrystalline diamond;

    wherein the external inside surface is adjacent to the internal outside surface.

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