Patent ID: 11889611
Assignee: LINCOLN GLOBAL, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A plasma arc torch, comprising:
a nozzle body;
a nozzle extending from the nozzle body;
a shield cap;
an outer retaining cap attached to the plasma arc torch that secures the shield cap to the plasma arc torch;
a sleeve located radially outward from the outer retaining cap and configured to receive a flow of pressurized gas; and
an insulator located between the outer retaining cap and the sleeve,
wherein at least one of the sleeve and the insulator forms a gas flow channel configured to direct a gas flow from the sleeve to a distal portion of the outer retaining cap, wherein the gas flow channel comprises a plurality of grooves arrayed annularly around an outer surface of the insulator and wherein the sleeve includes an annular plenum, and the plurality of grooves extend axially from the annular plenum to a distal terminal end of the insulator.