(19)
(11) EP 1 395 097 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.10.2006 Bulletin 2006/43

(43) Date of publication A2:
03.03.2004 Bulletin 2004/10

(21) Application number: 03018298.4

(22) Date of filing: 12.08.2003
(51) International Patent Classification (IPC): 
H05H 1/34(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 30.08.2002 IT BO20020553

(71) Applicant: Tec.Mo S.r.l.
40067 Rastignano (Bologna) (IT)

(72) Inventor:
  • Bassi, Giorgio, c/o TEC. MO S.R.L.
    40067 Rastignano (Bologna) (IT)

(74) Representative: Negrini, Elena et al
Agazzani & Associati S.r.l. Via dell'Angelo Custode 11/6
40141 Bologna
40141 Bologna (IT)

   


(54) Device for plasma cutting


(57) A device for plasma cutting is provided with an external sleeve (2) for a nozzle (3) equipped with an exit (4) of the plasma jet (30) and separated by the external sleeve (2) by means of a cavity (5) outside flowing at least through an opening (6) of such sleeve (2).
The device (1) includes a protrusion (7) of the nozzle (3) carrying the exit (4) and being approximately truncated cone shaped with side wall (8) that diverges in the direction of the external outlet (9) of the exit (4) to deflect, in direction away from the jet (30), a cooling fluid (F) flowing trough the cavity (5).







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