FIG. 1 is a front elevation view of a welding helmet.
FIG. 2 is a back elevation view thereof.
FIG. 3 is a left side elevation view thereof.
FIG. 4 is a right side elevation view thereof.
FIG. 5 is a top plan view thereof.
FIG. 6 is a bottom plan view thereof.
FIG. 7 is a front top perspective view thereof.
FIG. 8 is a left side perspective view thereof.
FIG. 9 is a right side perspective view thereof.
FIG. 10 is rear side bottom perspective view thereof.
FIG. 11 is a front elevation view of an alternative welding helmet having a smaller portal.
FIG. 12 is a back elevation view of FIG. 11.
FIG. 13 is a left side elevation view of FIG. 11.
FIG. 14 is a right side elevation view of FIG. 11.
FIG. 15 is a top plan view of FIG. 11.
FIG. 16 is a bottom plan view of FIG. 11.
FIG. 17 is a front top perspective view of FIG. 11.
FIG. 18 is a right side perspective view of FIG. 11; and,
FIG. 19 is rear side bottom perspective view of FIG. 11.
The broken lines showing the structure around the inner weld-glass opening is included for the purpose of illustrating a portion of the welding helmet that form no part of the claimed design.