FIG. 1 is a front, top, right perspective view of a door closer showing our new design;
FIG. 2 is a rear, bottom, left perspective view thereof;
FIG. 3 is a perspective view, similar to FIG. 1, shown in an alternate position with the engagement piece moved in its alternate position;
FIG. 4 is a perspective view, similar to FIG. 2, shown in alternate position with the engagement piece moved in its alternate position;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;
FIG. 10 is a sectional view thereof, taken along line 10-10 of FIG. 5;
FIG. 11 is a sectional view thereof, taken along line 11-11 of FIG. 5;
FIG. 12 is a sectional view thereof, taken along line 12-12 of FIG. 5;
FIG. 13 is a sectional view thereof, taken along line 13-13 of FIG. 6;
FIG. 14 is a sectional view thereof, taken along line 14-14 of FIG. 5;
FIG. 15 is a top plan view of FIG. 3;
FIG. 16 is a perspective view thereof, shown the door closer in its environmental use; and,
FIG. 17 is another perspective view of FIG. 16.
The broken lines environment is for illustrative purpose only and forms no part of the claimed design.