Laurence J Novak

US Patent:

47391472, Apr 19, 1988

Filed:

Jan 30, 1987

Appl. No.:

7/008809

Inventors:

Gerhard A. Meyer - Midland MI
Harold W. Eberhart - Midland MI
Laurence F. Novak - Sanford MI

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

B23K 900

US Classification:

219121PM

Abstract:

An improved pre-aligned demountable plasma torch wherein the three tubes that are generally used in demountable plasma torches are now joined together with standard taper joints. The axis of the standard taper joints are essentially centrally aligned with the central long axis of the tubes so that the tubes are pre-aligned and essentially concentric in the assembled torch. If any of the tubes becomes damaged in use they can be replaced with a similarly constructed tube with a minimum of interruption and expense, without the need to adjust the tubes to be essentially concentric and in an assembly consisting of only 3 parts.