Portable welding power source

FIG. 1 is a front isometric view of my new design;

FIG. 2 is a side view of the design of FIG. 1 ;

FIG. 3 is another side view of the design of FIG. 1 ;

FIG. 4 is a front view of the design of FIG. 1 ;

FIG. 5 is a rear view of the design of FIG. 1 ;

FIG. 6 is a top view of the design of FIG. 1 ; and,

FIG. 7 is a bottom view of the design of FIG. 1 .

The broken lines illustrate the environmental structure and form no part of the claimed design.