US Patent No. 10,561,009

CARTRIDGE FOR A LIQUID-COOLED PLASMA ARC TORCH


Patent No. 10,561,009
Issue Date February 11, 2020
Title Cartridge For A Liquid-cooled Plasma Arc Torch
Inventorship Nicholas A. Sanders, Enfield, NH (US)
E. Michael Shipulski, Etna, NH (US)
Assignee Hypertherm, Inc., Hanover, NH (US)

Claim of US Patent No. 10,561,009

1. A liquid-cooled consumable cartridge for a plasma arc torch, the cartridge comprising:an electrode;
a swirl ring with a first outer retaining feature and a second outer retaining feature on an exterior surface, wherein the electrode is secured to the swirl ring;
a nozzle with an inner retaining feature on an interior surface, wherein the inner retaining feature of the nozzle is mated with the first outer retaining feature of the swirl ring;
a cartridge frame with an inner retaining feature on an interior surface and an outer retaining feature on an exterior surface, wherein the inner retaining feature of the cartridge frame is mated with the second outer retaining feature of the swirl ring; and
a shield with an inner retaining feature on an interior surface mated with the outer retaining feature of the cartridge frame,
wherein the cartridge frame comprises at least one liquid flow path disposed therein, the liquid flow path being radially offset from a central longitudinal axis of the cartridge frame.