Plasma cutting torch with improved electrode holders

Details Plasma cutting torch with improved electrode holders Plasma cutting torch with improved electrode holders

1987-03-02

1988-10-11

Paschall, M. H.

Electric heating

Metal heating

By arc

219 75, 21912152, 21912148, B23K 900

Patent

active

047773421

ABSTRACT:
In the context of a plasma cutting torch of the type comprising a torch nozzle whose two electrode holders, which are adapted to be connected with different poles of a power supply and are coaxially arranged to form a flow path for gas for operation of the torch, an insulating ring, preferably made of ceramic material, is provided to locate the electrode holders in the axial and radial directions. The invention seeks to devise such an arrangement, using simple and low-price means, so that relative motion between the electrode holders and the electrodes is efficiently precluded and in order to achieve this, each of the two electrode holders is provided with ring holding members with axial gripping surfaces which are able to be moved towards each other axially to hold the ring between them, one of the electrode holders being then placed within the ring and the other being placed around it.

REFERENCES:
patent: 2858412 (1958-10-01), Kane et al.
patent: 3450926 (1969-06-01), Kiernan
patent: 4127760 (1978-11-01), Meyer et al.
patent: 4311897 (1982-01-01), Yerushalmy
patent: 4521666 (1985-06-01), Severence, Jr. et al.

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