An instrumentation system for a net barrier comprising at least one tension sensor node attached to one or more threads of said net barrier is described. Also described is a sensor node, and use of this sensor node.

A fence cap system, comprising a cover, a cap claw, a securing screw, wherein the cover includes an upper portion that is pyramid-shaped with an apex and a base, the apex including a cover hole designed to receive the securing screw, wherein the cap claw includes a center portion that includes a claw hole designed to receive the securing screw, and wherein the securing screw secures the cap claw to the cover when it is received through the cover hole and the claw hole.

A security system for preventing ungrounded personnel access into an equipotential zone is described. The security system includes a conductive fence and a conductive mat. The conductive mat is mechanically and electrically coupled to the conductive fence to define an equipotential zone.

The fence system attaches to an aluminum or steel rectangular base post in concrete or the ground. The inside wall of a fence column slides over the base post. The fence column also has an outside wall around the inside wall. Each of three side of the fence column has an elongated slot, which receives one end of a slat. A bracket may secure the slat to the fence column. The fence system also has a gate of the same style as the rest of the fence. A lockset housing replaces one fence column. It receives slats on one side, and the lockset's latch projects from the other side. A hollow post has a slot facing the latch when the gate is closed. A latch cover is held by the slot, and an extension of the latch cover extends along the lockset housing to block surreptitious opening the gate.

A stringer for an off-set board-on-board fence having an inverted U-section elongated body having two mutually opposed sides depending from an intermediate adjoining portion having laterally off-set and longitudinally over-lapping first and second sets of spaced board slots extending flush with inside surfaces of the opposed sides for attaching fence boards of predetermined cross-section flush to the inside surfaces of the opposed sides of the stringer. The stringer has board fastening apertures in the opposed sides of the stringer to fasten the fence boards flush with the inside surfaces of the opposed sides. The stringer has a plurality of bracket attachment apertures, preferably square, arranged longitudinally from end to end, between the first and second sets of board slots for attaching post brackets at each end of the stringer. A stringer support of each opposing bracket is within range of one bracket attachment aperture at each end of the stringer.

The fence system attaches to an aluminum or steel rectangular base post in concrete or the ground. The inside wall of a fence column slides over the base post. The fence column also has an outside wall around the inside wall. Three sides of the fence column has an elongated slot which receives one end of a slat. The fence system also has a gate of the same style as the rest of the fence. A lockset housing replaces one fence column. The lockset's latch projects from the other side. A hollow post has a slot facing the latch when the gate is closed. A latch cover is held by the slot, and an extension of the latch cover extends along the lockset housing to block surreptitious opening the gate. Clips may secure transparent, translucent, or opaque panels from the top, bottom, and sides.

A perimeter security fence includes a plurality of vertical fence posts spaced from one another along a fence line of the perimeter security fence, each vertical fence post having an upper end and a lower end. A wire receiving slot is formed in each vertical fence post. Each wire receiving slot having an open, upper end and a closed, lower end. One or more conductive wires or cables are disposed within the wire receiving slots of the vertical fence posts. At least one reinforcing plate is secured to each vertical fence post for covering a gap in the vertical fence post defined by the wire receiving slot. The at least one reinforcing plate is configured to enhance the structural integrity of the vertical fence post in the vicinity of the wire receiving slot and retain the one or more conductive wires or cables within the wire receiving slot. One or more security devices are secured to the perimeter security fence and are coupled with the one or more conductive wires or cables disposed within the wire receiving slots of the vertical fence posts.

The present invention relates to posts, carriages, methods of manufacturing the components and their assembly into a barrier. The invention also includes a Z post attachment includes an attachment tab 8.016 and end engagement flange 8.024, 8.026 adapted to engage the end of the post. The arrangement can include a delineator 8.030 which is skew in relation to the tab 8.016, so as to provide reflector faces 8.032 which face oncoming traffic.

A cushion for removably coupling to a fence.

The present invention relates to a novel guard or cap device for wooden, metal, vinyl, or composite fencings. The guard device is in the form of a metal or composite cap that is placed on the top of a plurality of fence pickets. More specifically, the guard device includes a cavity formed by two parallel panels which are connected at their respective top edges by a horizontal panel. The device protects the fence from rot, warping, and misalignment by covering or capping the tops of the plurality of fence pickets. Other embodiments of the guard device have a series of spikes for repelling birds and a solar panel for absorbing solar light and converting same into electric energy.