Tank frame

FIG. 1 is an isometric view of the tank frame;

FIG. 2 is a side elevational view thereof, as taken from the back side in FIG. 1 ;

FIG. 3 is a side elevational view thereof, as taken from the front side in FIG. 1 ;

FIG. 4 is an end elevational view thereof, as taken from the left end in FIG. 1 ;

FIG. 5 is an end elevational view thereof, as taken from the right end in FIG. 1 ;

FIG. 6 is a top view thereof, as taken from the top of FIG. 2 ; and,

FIG. 7 is a bottom plan view thereof, as taken from the bottom of FIG. 2 .

The portions of the tank frame shown in broken lines in the figures form no part of the claimed design.