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Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes

  • US 8,035,055 B2
  • Filed: 02/20/2007
  • Issued: 10/11/2011
  • Est. Priority Date: 02/17/2006
  • Status: Active Grant
First Claim
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1. A component for a plasma arc torch, the component comprising:

  • a hollow body defining a longitudinal axis; and

    an interior surface of the body, the surface comprising one or more of a contour, step, or flange at least a portion of which extends toward the axis, the contour, step, or flange defining a shaped opening capable of slideably receiving along the axis a complementary-shaped portion of an electrode body, wherein the shaped opening is defined in a plane orthogonal to the axis and has a first length in the plane along a first direction and a second length in the plane along a second direction, the second length being greater than the first length.

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