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

Claim 15:
16. An attachment for a plasma arc torch, comprising:
an outer retaining cap that is attachable to the plasma arc torch and that is configured to secure a 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;
an insulator located between the outer retaining cap and the sleeve; and
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.