Patent ID: 7575225

Claim:
A security fence cap, for use with a security fence having a cylindrical post having a post top, a top rail, and sharp wire extending horizontally above the top rail, comprising: a cylindrical collar portion, having an external surface and having a lower opening for accepting the post top therein for attaching atop the post, and further having at least one set screw extending radially inward from the external surface to tighten against the post when inserted through the lower opening; a domed portion attached to the cylindrical collar portion, for fully covering the post top when attached on the post, the domed portion having an outer surface that is semispherical having a plurality of radial bores; and a plurality of spiked protrusions, each spiked protrusion has a point at one end and a threaded rod at an opposite end, the threaded rod selectively secures each of said spiked protrusions within one of the radial bores of the domed portion and allows it to be removed therefrom, each spiked protrusion individually extending radially outward from the semispherical outer surface of the domed portion.