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Apparatus and method for improved assembly concentricity in a plasma arc torch

  • US 5,841,095 A
  • Filed: 10/28/1996
  • Issued: 11/24/1998
  • Est. Priority Date: 10/28/1996
  • Status: Expired due to Term
First Claim
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1. A plasma arc torch comprising:

  • first and second consumable components forming a plasma chamber therebetween in which an arc may be formed;

    a torch body having an interior surface forming a circumferential groove and a bore in which said first component is disposed;

    a first spring element disposed between said body interior surface and said first component in said body groove for providing radially directed forces therebetween to radially center said first component in said body bore;

    a cathode block having an interior surface forming a circumferential groove and a bore in which said second component is disposed; and

    a second spring element disposed between said block interior surface and said second component in said block groove for providing radially directed forces therebetween to radially center said second component in said block bore, wherein said body bore and said block bore are substantially concentrically aligned thereby substantially concentrically aligning said first and second components.

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