Safety device for a plasma torch

Details Safety device for a plasma torch Safety device for a plasma torch

1999-07-15

2000-08-01

Paschall, Mark

Electric heating

Metal heating

By arc

21912154, 21912148, 21912145, 21912159, B23K 1000

Patent

active

060969938

ABSTRACT:
Plasma torch (1) equipped with a torch head (1') including a nozzle holder (10) and a nozzle (4), the nozzle (4) being fixed to the nozzle holder (10) by the use of fixing elements (14). Safety electrical switch unit (3) controls the electric current supplied to the torch head (1'). A removable protective shroud (5) surrounds the torch head (1') and comprises, on the one hand, at least one actuating element (6) capable of interacting with the safety electrical switch unit (3) in order to make it possible to supply electric current to the torch head (1') and, on the other hand, retaining elements comprising a spring clip (8) capable of interacting with a circular groove of the nozzle (4) to allow the protective shroud (5) to be integrated with the nozzle (4). Such a plasma torch is useful for welding or cutting a piece of metal.

REFERENCES:
patent: 4814577 (1989-03-01), Dallavalle et al.
patent: 4973816 (1990-11-01), Haberman

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