Connecting sleeve of fan housing

[0001]FIG. 1 is a first perspective view of a connecting sleeve of a fan housing showing our new design;

[0002]FIG. 2 is a second perspective view thereof;

[0003]FIG. 3 is a third perspective view thereof;

[0004]FIG. 4 is a fourth perspective view thereof;

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

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

[0007]FIG. 7 is a left view thereof;

[0008]FIG. 8 is a right view thereof;

[0009]FIG. 9 is a top view thereof; and,

[0010]FIG. 10 is a bottom view thereof.

[0011]The dash-dash broken lines illustrate portions of the connecting sleeve of the fan housing that form no part of the claimed design. The dash-dot broken lines depict the boundaries of the claimed design, and form no part thereof. The areas enclosed by dash-dash broken lines and dash-dot lines form no part of the claimed design.