Patent ID: 8847102

Claim:
A plasma torch comprising: a first tube having an inner diameter; a second tube disposed concentrically within the first tube, the second tube having an outer diameter that is less than the inner diameter of the first tube, the outer diameter of the second tube having a substantially constant spacing from the inner diameter of the first tube; and a body including a first bore configured to receive an end of the first tube, a second bore configured to receive an end of the second tube, and a manifold disposed between the first bore and the second bore and configured to receive a flow of gas for injection between the first tube and the second tube, the manifold having an outer diameter at least substantially equal to the inner diameter of the first tube and an inner diameter at least substantially equal to the outer diameter of the second tube when the second tube is received in the second bore, the manifold having a width that is substantially equal to the substantially constant spacing between the outer diameter of the second tube and the inner diameter of the first tube.