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Plasma arc torch

  • US 20040195217A1
  • Filed: 01/16/2004
  • Published: 10/07/2004
  • Est. Priority Date: 04/07/2003
  • Status: Active Grant
First Claim
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1. A plasma arc torch comprising:

  • a torch head;

    a proximal anode member disposed within the torch head;

    a cathode disposed within the torch head;

    a central body disposed adjacent the torch head; and

    torch consumables disposed adjacent a distal end portion of the torch head, the torch consumables comprising;

    an electrode in electrical contact with the cathode and disposed within the central body;

    a tip disposed adjacent the electrode;

    a spacer disposed between the electrode and the tip;

    a baffle disposed around the central body;

    a distal anode member disposed between the central body and the baffle, the distal anode member in electrical contact with the tip;

    a central anode member disposed adjacent a proximal end portion of the distal anode member and in electrical contact with the distal anode member and the proximal anode member;

    a shield cap disposed around the baffle;

    a secondary cap disposed against an interior surface of the shield cap, the secondary cap comprising a plurality of crenulations at a proximal end portion; and

    a secondary spacer disposed between the tip and the secondary cap, wherein a plasma gas, a secondary gas, a cooling fluid, and current are conducted through the torch head, the central body, and torch consumables for operation of the plasma arc torch.

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