Global patent index - EP 0973362 A1

EP 0973362 A1 2000-01-19 - Safety device for plasmatorch

Title (en)

Safety device for plasmatorch

Title (de)

Sicherheitsvorrichtung für Plasmabrenner

Title (fr)

Dispositif de sécurité pour torche à plasma

Publication

EP 0973362 A1 (FR)

Application

EP 99401701 A

Priority

  • CA 2281394 A
  • FR 9809038 A

Abstract (en)

The welding head (1) includes a head cap (5) that is connected to a cutout mechanism (6,9). A relay switch (3) controls the cutout mechanism and the release of the welding head. The release of the switch is controlled by the operating handle, which must be in contact with the operators' hand to allow use of the welder. An Independent claim is included for a procedure of assembling the plasma welding head.

Abstract (fr)

Torche à plasma (1) munie d'une tête de torche (1') comportant un porte-tuyère (10) et une tuyère (4), ladite tuyère (4) étant fixée au porte-tuyère (10) par l'intermédiaire de moyens de fixation (14). Des moyens interrupteurs électriques (3) de sécurité commandent l'alimentation de ladite tête de torche (1') en courant électrique. Une coiffe de protection (5) amovible entoure la tête de torche (1') et comprend, d'une part, au moins un moyen d'actionnement (6) susceptible de venir coopérer avec les moyens interrupteurs électriques (3) de sécurité pour permettre d'alimenter la tête de torche (1') en courant électrique et, d'autre part, des moyens de maintien comprenant un jonc (8) pouvant coopérer avec une gorge circulaire de la tuyère (4) pour permettre la solidarisation de la coiffe de protection (5) avec la tuyère (4). Utilisation d'une telle torche à plasma pour souder ou couper une pièce métallique. <IMAGE>

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 2001/3473 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0973362 A1 20000119; EP 0973362 B1 20040922; AT 277496 T 20041015; CA 2281394 A1 20010302; DE 69920343 D1 20041028; DE 69920343 T2 20051117; ES 2229644 T3 20050416; FR 2781328 A1 20000121; FR 2781328 B1 20000818; US 6096993 A 20000801

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