Global Patent Index - EP 0823192 B1

EP 0823192 B1 2000-09-20 - PLASMA TORCH FOR TRANSMITTED ARCS

Title (en)

PLASMA TORCH FOR TRANSMITTED ARCS

Title (de)

PLASMABRENNER FÜR ÜBERTRAGENEN LICHTBOGEN

Title (fr)

CHALUMEAU A PLASMA POUR ARC ELECTRIQUE

Publication

EP 0823192 B1 (DE)

Application

EP 97904327 A

Priority

  • CH 9700065 W
  • CH 47196 A

Abstract (en)

[origin: WO9731509A1] The invention concerns a plasma torch with transmitted arcs for direct current, gas being supplied through at least two parallel superimposed rows of apertures. In order to ensure that the torch gas swirls satisfactorily, a baffle wall is associated with part of the aperture rows. By varying the gas pressure in an oscillating manner, the spot of the arc is also continuously displaced in the axial direction. An additional gas supply is arranged such that gases can be introduced directly into the plasma jet.

IPC 1-7 (main, further and additional classification)

H05H 1/34

IPC 8 full level (invention and additional information)

H05H 1/34 (2006.01)

CPC (invention and additional information)

H05H 1/34 (2013.01); H05H 2001/3431 (2013.01); H05H 2001/3468 (2013.01); H05H 2001/3478 (2013.01)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

EPO simple patent family

WO 9731509 A1 19970828; AT 196587 T 20001015; CH 690408 A5 20000831; DE 59702375 D1 20001026; EP 0823192 A1 19980211; EP 0823192 B1 20000920; US 6002096 A 19991214

INPADOC legal status


2002-10-15 [REG CH PL] PATENT CEASED

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