Security fence spike

• US 20090050862A1
• Filed: 08/23/2007
• Published: 02/26/2009
• Est. Priority Date: 08/23/2007
• Status: Abandoned Application

• Current Assignee: Vann K. Cruce
• Original Assignee: Vann K. Cruce
• Inventors: Cruce, Vann K.
• Application Number:
  US11/892,509
• Publication Number:
  US 20090050862A1
• Time in Patent Office: Days
• US Class Current: 256/8
• CPC Class Codes: E04H 17/003 Anti-climbing devices, e.g. fixed spikes
• CPC Class Codes: E04H 17/24 Connections for attaching additional wire to frames, posts or railings

Abstract

The security fence spike is attached to the upper rail of a chain link security fence or the like, to project generally diametrically through a coil of razor wire or concertina wire strung along the upper rail of the fence. The security spike is a rigid metal projection, and resists collapse when a heavy sheet of material or blanket is tossed over the coiled wire atop the fence by a person(s) attempting to scale the fence. A row of spikes is preferably installed along the upper rail of the fence, threatening injury to anyone attempting to scale the fence even after covering a coil of razor wire or the like atop the fence. The security spike is formed of sheet metal bent to form a triangular cross section for rigidity and strength. The spike is attached to a brace band, which, in turn, is clamped to the fence.

Claims

1. A spike for a security fence, comprising a thin, elongate projection of sheet material having a blunt fence attachment end, a sharply pointed distal tip opposite the fence attachment end, and a spike body extending from the fence attachment end to the distal tip, the spike body being folded into a rigid, closed, triangular cross section having a hollow center.

2. The spike for a security fence according to claim 1, wherein the fence attachment end of the projection further comprises a flat tab extending from the spike body.

3. The spike for a security fence according to claim 1, further including a brace band, the fence attachment end of the projection being attached substantially tangentially to the brace band.

4. The spike for a security fence according to claim 3, further including a tamper-proof fastener securing the brace band to the security fence.

5. The spike for a security fence according to claim 1, wherein the projection is formed of sheet metal.

6. A spike for a security fence, comprising:

a thin, elongate projection of sheet material having a blunt mounting tab, the tab having an attachment hole formed therethrough, the projection having a sharply pointed distal tip opposite the mounting tab, and a spike body extending from the mounting tab to the distal tip;

a brace band having an attachment hole formed therethrough; and

a spike fastener extending through the mounting tab attachment hole and through the brace band attachment hole, the fastener securing the mounting tab to the brace band.

7. The spike for a security fence according to claim 6, wherein the spike body is folded into a rigid, closed, triangular cross section having a hollow center.

8. The spike for a security fence according to claim 6, wherein the projection is formed of sheet metal.

9. The spike for a security fence according to claim 6, wherein the spike fastener is selected from the group consisting of screws and rivets.

10. The spike for a security fence according to claim 6, further including a tamper-proof brace band fastener securing the brace band to the security fence.

11. A security fence, comprising:

a plurality of substantially vertical posts, each of the posts having an upper end;

an upper rail having a substantially cylindrical cross section, the rail extending between the upper end of the posts; and

a plurality of spikes extending upward from the upper rail opposite the posts, each of the spikes being a thin, elongate projection of sheet material having a blunt fence attachment end, a sharply pointed distal tip opposite the fence attachment end, and a spike body extending from the fence attachment end to the distal tip.

12. The security fence according to claim 11, further including a chain link mesh disposed across the vertical posts, the mesh being attached to the vertical posts and to the upper rail.

13. The security fence according to claim 11, further including a coil of razor wire secured to, and extending immediately above and parallel to, the upper rail, the coil substantially surrounding and enclosing each of the spikes therein.

14. The security fence according to claim 11, wherein each of the spikes has a spike body extending from the fence attachment end to the distal tip, the spike body being folded into a rigid, closed, triangular cross section having a hollow center.

15. The security fence according to claim 14, wherein each of the spikes is formed of sheet metal.

16. The security fence according to claim 14, wherein the fence attachment end of each of the spikes further comprises a flat mounting tab extending from the spike body.

17. The security fence according to claim 14, further including:

a plurality of chain link fence brace bands, each of the brace bands having an attachment hole formed therethrough, the brace bands being secured about the upper rail; and

a spike fastener extending through the fence attachment end of each of the spikes and corresponding one of the chain link fence brace bands in order to secure the spikes to a corresponding one of the chain link fence brace bands substantially tangential thereto.

18. The security fence according to claim 17, wherein the spike fastener is selected from the group consisting of screws and rivets.

19. The security fence according to claim 17, further including a tamper-proof brace band fastener securing the brace band to the security fence.