(19)
(11) EP 4 319 491 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.05.2024 Bulletin 2024/20

(43) Date of publication A2:
07.02.2024 Bulletin 2024/06

(21) Application number: 23216691.8

(22) Date of filing: 05.12.2017
(51) International Patent Classification (IPC): 
H05H 1/34(2006.01)
(52) Cooperative Patent Classification (CPC):
H05H 1/34; H05H 1/3457; H05H 1/3463
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 05.12.2016 US 201662430108 P
24.08.2017 US 201715685659

(62) Application number of the earlier application in accordance with Art. 76 EPC:
17817619.4 / 3549409

(71) Applicant: Hypertherm, Inc.
Hanover, NH 03755 (US)

(72) Inventors:
  • Patel, Shreyansh
    Hanover, 03755 (US)
  • Darrow, Clifford, G.
    Hanover, 03755 (US)
  • Agan, David
    Hanover, 03755 (US)
  • Moody, Steven
    Hanover, 03755 (US)
  • Higgens, Martin
    Hanover, 03755 (US)
  • Shipulski, E., Michael
    Hanover, 03755 (US)

(74) Representative: Barker Brettell LLP 
100 Hagley Road Edgbaston
Birmingham, West Midlands B16 8QQ
Birmingham, West Midlands B16 8QQ (GB)

   


(54) ASYMETRIC CONSUMABLES FOR A PLASMA ARC TORCH


(57) A torch tip assembly of a plasma arc torch is provided for delivering a diffused stream of plasma arc in a gouging operation. The assembly comprises a nozzle including a nozzle body defining a central longitudinal axis extending between a proximal end and a distal end. A nozzle exit orifice of the nozzle body defines at least a bore for conducting the plasma arc therethrough. The assembly also comprises a counter bore feature, disposed relative to the distal end the nozzle body, fluidly connected to the bore and located distally relative to the bore. At least one of the bore or the counter bore feature has a non-circular cross-sectional shape in a plane perpendicular to the longitudinal axis. The non-circular cross-sectional shape is configured to enable a second non-circular cross-sectional shape in the plasma arc that diffuses the plasma arc.







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