×

Plasma arc torch with coaxial wire feed

  • US 6,365,867 B1
  • Filed: 11/01/2000
  • Issued: 04/02/2002
  • Est. Priority Date: 11/01/2000
  • Status: Active Grant
First Claim
Patent Images

1. A plasma arc welding apparatus comprising:

  • a plasma arc torch, having a hollow non-consumable electrode;

    a wire guide, disposed coaxially inside of the plasma arc torch;

    wherein the wire guide directs filler wire through the center of the hollow non-consumable electrode during plasma arc welding;

    a non-conductive wire guide holder, disposed coaxially inside of the plasma arc torch, for holding the wire guide; and

    a coaxial electrode adapter affixed both to the non-conductive wire guide holder and the hollow non-consumable electrode, whereby the wire guide is centered within the hollow non-consumable electrode, thereby preventing the filler wire from contacting the hollow non-consumable electrode during plasma arc welding.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×