Global Patent Index - EP 0515975 A2

EP 0515975 A2 19921202 - High enthalpy plasma torch.

Title (en)

High enthalpy plasma torch.

Title (de)

Hochenthalpie-Plasmabrenner.

Title (fr)

Tuyère à plasma à enthalpie élevée.

Publication

EP 0515975 A2 19921202 (EN)

Application

EP 92108547 A 19920520

Priority

CA 2043504 A 19910529

Abstract (en)

A plasma torch comprises a torch housing, rear and front tubular electrodes coaxially mounted within such housing with a gap therebetween, both electrodes being fabricated from copper having tubular inserts of refractory material, a vortex generator for introducing a tangential flow of gas in opposite direction into the tubular electrodes through the gap between the two electrodes, and a cooling system for cooling the tubular electrodes. <IMAGE>

IPC 1-7

H05H 1/28; H05H 1/34

IPC 8 full level

B23K 10/00 (2006.01); H05B 7/18 (2006.01); H05H 1/28 (2006.01); H05H 1/34 (2006.01)

CPC (source: EP US)

H05H 1/28 (2013.01 - EP); H05H 1/34 (2013.01 - EP US); H05H 1/3431 (2021.05 - EP); H05H 1/3442 (2021.05 - EP); H05H 1/3468 (2021.05 - EP)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0515975 A2 19921202; EP 0515975 A3 19930512; EP 0515975 B1 19961030; CA 2043504 C 19950117; DE 69214878 D1 19961205; DE 69214878 T2 19970403; JP 3042919 B2 20000522; JP H04355100 A 19921209

DOCDB simple family (application)

EP 92108547 A 19920520; CA 2043504 A 19910529; DE 69214878 T 19920520; JP 31075091 A 19911126