The ornamental design for a foreign objectdeflector, as shown and described.
FIG. 1 is a front perspective view of the foreign object deflector;
FIG. 2 is a side view of the foreign object deflector;
FIG. 3 is a front view of the foreign object deflector;
FIG. 4 is a rear view of the foreign object deflector;
FIG. 5 is a front perspective view of the foreign object deflector, attached to a jet engine (illustrated in phantom), which jet engine does not form a part of the claimed design; and,
FIG. 6 is a side view of the foreign object deflector attached to a jet engine, which jet engine does not form a part of the claimed design.
The broken line showing of a jet engine in FIGS. 5 and 6 is included for the purpose of illustrating only and forms no part of the claimed design.