US 10,462,891 B2
Cost effective cartridge for a plasma arc torch
Yu Zhang, Hanover, NH (US); Zheng Duan, Hanover, NH (US); Mahyar Esmaili, Wilmot, NH (US); Mike Kornprobst, Lebanon, NH (US); Brett Hansen, Mapleton, UT (US); and Garrett Quillia, Enfield, NH (US)
Assigned to Hypertherm, Inc., Hanover, NH (US)
Filed by Hypertherm, Inc., Hanover, NH (US)
Filed on Feb. 12, 2016, as Appl. No. 15/43,044.
Application 15/043,044 is a continuation in part of application No. 14/824,946, filed on Aug. 12, 2015.
Claims priority of provisional application 62/036,393, filed on Aug. 12, 2014.
Prior Publication US 2016/0165712 A1, Jun. 9, 2016
Int. Cl. H05B 1/02 (2006.01); H05H 1/34 (2006.01); B23K 10/02 (2006.01)
CPC H05H 1/34 (2013.01) [B23K 10/02 (2013.01); H05H 2001/3457 (2013.01); H05H 2001/3468 (2013.01); H05H 2001/3489 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A crown for a plasma arc torch, the crown comprising:
a body defining a distal end that is closest to a workpiece during an operation of the plasma arc torch and a proximal end opposite of the distal end, the distal end of the body disposed adjacent to and aligned with a proximal end of an electrode of the plasma arc torch;
at least one raised feature at the proximal end of the body, the raised feature adapted to depress a consumable sensor inside of the plasma arc torch to permit a flow of electrical current from a power supply; and
a surface of the body having one of (i) a depressed center to conduct the electrical current through the body, or (ii) an opening adapted to provide the electrical current to the electrode.