FIG. 1 is a perspective view of an in-line air cleaner embodying our new design, an optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 2 is a rear-end elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 3 is a front-end elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 4 is a left elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 5 is a right elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 6 is a bottom plan view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 7 is a top plan view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 8 is a rear-end elevational view of a second embodiment of an in-line air cleaner, an optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 9 is a left elevational view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 10 is a right elevational view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 11 is a bottom plan view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented; and,

FIG. 12 is a top plan view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented.

The front end elevational view of the in-line air cleaner depicted in FIG. 8 has an identical appearance to FIG. 3.