The ornamental design for a louveredsilo vent, as shown.
FIG. 1 is a perspective view of a louvered silo vent showing my new design with louvers open;
FIG. 2 is a front elevation view thereof with louvers open as in FIG. 1;
FIG. 3 is a top plan view thereof with louvers closed;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation thereof; and,
FIG. 7 is a front elevation view thereof with the louvers closed.
The broken line showing of louvered silo vent is included for the purpose of illustrating portions of the “article” and forms no part of the claimed design.