Abstract: A security cover is used in conjunction with a visually pleasing picket fence barrier. The security cover, having a C-shaped cross section, restricts access to bolts used to couple each picket to top and bottom support beams and thereby prevents tampering with the fence.

Abstract: A taut wire intrusion detection system includes posts that are used to detect an intrusion into a secured area. The supporting posts are used to both detect a movement of the taut wire and anchor the taut wire by using separate anchor and sensor elements. The taut wire system eliminates many of the weaknesses of prior taut wire systems by providing a less variant taut wire sensitivity.

Abstract: A taut wire fence system comprises wire-supporting anchor posts that maintain the taut wires of the system in tension. Sensor posts having tension sensors mounted therein are positioned between pairs of anchor posts to monitor changes in tension caused by intrusion attempts. To protect against attempts to bypass the tension sensors (such as by cutting the taut wires while using a frame device to maintain wire tension), one or more tensioned cable segments are provided in tension between the anchor posts (preferably along the lower portion of the fence) to form an electrical path. An electrical monitoring device is then used to monitor the continuity of the electrical path. The tensioned cable segments are preferably formed from a special cable that includes an outer layer which forms a physical barrier to cutting.

Abstract: A shaped or flat article, having a skid resistant surface is adapted for use on floors, stairs, ladder rungs, and ramps particularly in moist and wet locations where a highly durable surface is required. The article is prepared by cleaning a surface of a ferrometallic base followed by application of a polychloroprene primer layer to the surface from an organic solvent. This is then followed by adhering and covering the primed base, in the area where the skid resistant surface is required, with a thermosetting epoxy resin. Partially embedded in the resin are particles of a grit material. One or more additional layers of a suitable coating such as paint may be applied on top of the cured resin for visibility, luminescence, cleanability, and added protection.

Abstract: A shaped or flat article is described, having a skid resistant surface useful on floors, stairs, ladder rungs, ramps and other locations where a highly durable surface is required. The article is prepared by etching and cleaning a surface of the metallic base followed by adhering and fully covering the base, in the area where the skid resistant surface is required, with a flexible mesh layer embedded in a thermosetting resin such as a flexible epoxy resin. Partially embedded in the resin over the mesh are particles of a grit material. One or more additional layers of a suitable coating such as paint may be applied on top of the cured resin for visibility, luminescence, cleanability, and added protection.

Abstract: An improved therapeutic belt which is peculiarly adapted for the sacro-lumbar region of the body is disclosed. The belt appliance, in essence, is comprised of an elongated support surface formed from material that is bendable when subjected to forces encountered thereby; a flexible cover disposed on said support surface secured thereto along its edges, thereby forming an envelope; a source of fluid; a means introducing said fluid into said envelope for inflating and retaining said fluid, causing said surface to bend to assume a predetermined curvature, which is preferably in the shape of a crescent; and a means removably securing the free ends of said support surface.