Abstract: A security fence for swimming pools is provided to be so positioned as to surround the water of a swimming pool. The security fence comprises fence sections which are linked to an alarm system. The fence sections are moveable between a non-signaling position and an alarm signaling position. When the fence sections are in the non-signaling position and a given fence section is engaged with sufficient force it is moved to the alarm signaling position thereby signaling the alarm. The foregoing prevents a user, such as a child, from entering the pool water when the alarm system has been activated.

Abstract: A security fence for swimming pools is provided to be so positioned as to surround the water of a swimming pool. The security fence comprises fence sections which are linked to an alarm system. The fence sections are moveable between a non-signaling position and an alarm signaling position. When the fence sections are in the non-signaling position and a given fence section is engaged with sufficient force it is moved to the alarm signaling position thereby signaling the alarm. The foregoing prevents a user, such as a child, from entering the pool water when the alarm system has been activated.

Abstract: An anti-scaling device comprises a hollow central body for mounting on a bar and several spike units extending outwardly from the body in different directions. Pairs of spike units are rotatably and preferably detachably mounted on opposite sides of the central body. The device may further comprise serrated webs extending outwardly from the central body between the spike units. The device may also comprise rows of sharp-edged teeth axially aligned along the central body. Alternatively, the spike units may be partially rotatable serrated propellers or may be pivotably rotatably mounted. The device may be moulded from plastic material.

Abstract: A security fence includes a panel of chain wire mesh supported by posts having lower portions and upper portions. The lower portions and the upper portions of the fence posts are connected by a flexible member so that the upper portions are resiliently deflectable. The upper portions support a barrier of barbed wire. The flexible member and the upper portions are located above adult height so that efforts to climb the fence causes the upper portions to resiliently deflect down onto the person attempting to climb the fence.

Abstract: A protective device for covering a barb in a strand of barbed wire is disclosed. The barb has a plurality of outwardly extending points disposed around the strand with the strand extending axially outwardly from opposing sides of the barb.In a first embodiment, the protective covering device of the present invention has an upper shell formed in a substantial hemisphere and a lower shell formed in a substantial hemisphere. A color agent may be optionally added to the upper and lower shells in order to provide high visibility when attached over the barb. A living hinge connects the upper and lower shells in a pivoting relationship so that the upper shell can pivot towards to lower shell. Male and female locking elements are provided on the upper and lower shells for locking the two hemispheres together over the barb. When locked, the barb is located in a formed hollow interior of the two shells and is fully protected from causing damage to animals and the like.