The ornamental design for a draperyrodadapter, as shown and described.
FIG. 1 is a magnified, partial front isometric section view of a drapery rod adapter cut along line 1-1 of FIG. 4, it being partially shown for ease of illustration;
FIG. 2 is a reduced scale front isometric view thereof;
FIG. 3 is an enlarged left side end elevation view thereof, where the right side end elevation view is a mirror image thereof;
FIG. 4 is a reduced scale front elevation view thereof;
FIG. 5 is a reduced scale top plan view thereof;
FIG. 6 is a reduced scale rear elevation view thereof; and,
FIG. 7 is a reduced scale bottom plan view thereof.
The broken lines in the drawing views are included for purposes of illustrating environment and form no part of the claimed design.