US 10,561,009 B2
Cartridge for a liquid-cooled plasma arc torch
Nicholas A. Sanders, Enfield, NH (US); and E. Michael Shipulski, Etna, NH (US)
Assigned to Hypertherm, Inc., Hanover, NH (US)
Filed by Hypertherm, Inc., Hanover, NH (US)
Filed on Aug. 4, 2016, as Appl. No. 15/228,813.
Claims priority of provisional application 62/200,913, filed on Aug. 4, 2015.
Prior Publication US 2017/0042014 A1, Feb. 9, 2017
Int. Cl. B23K 10/00 (2006.01); H05H 1/28 (2006.01); H05H 1/34 (2006.01); G06K 19/077 (2006.01); H05H 1/36 (2006.01); B23K 9/28 (2006.01)
CPC H05H 1/28 (2013.01) [B23K 9/285 (2013.01); G06K 19/07773 (2013.01); H05H 1/34 (2013.01); H05H 1/3405 (2013.01); H05H 1/36 (2013.01); H05H 2001/3426 (2013.01); H05H 2001/3457 (2013.01); H05H 2001/3468 (2013.01); H05H 2001/3473 (2013.01)] 26 Claims
OG exemplary drawing
 
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.