Tank brush

[0001]FIG. 1 is a top front-left perspective view of a tank brush;

[0002]FIG. 2 is a left side elevation view thereof;

[0003]FIG. 3 is a right side elevation thereof;

[0004]FIG. 4 is a top plan view thereof;

[0005]FIG. 5 is a front elevation view thereof;

[0006]FIG. 6 is a rear elevation view thereof;

[0007]FIG. 7 is a magnified front elevation view thereof;

[0008]FIG. 8 is a bottom front-left perspective view thereof;

[0009]FIG. 9 is a longitudinal section view taken from the left side along a longitudinal center line of FIG. 4; and

[0010]FIG. 10 is a transverse section view taken from the front along a transverse centerline of FIG. 4; and,

[0011]FIG. 11 is a bottom perspective view.

[0012]Broken lines in the drawings depict portions of the tank brush that form no part of the claimed design.