Abstract: Anti-blocking compositions are disclosed that include a wax or mixture of waxes effective to reduce, retard or prevent blocking of a viscoelastic solid when applied to the surface of such a solid. Also disclosed are methods of reducing, retarding or preventing blocking of a viscoelastic solid, and the products of those methods which are viscoelastic solids resistant to blocking.

Abstract: Anti-blocking compositions are disclosed that include a wax or mixture of waxes effective to reduce, retard or prevent blocking of a viscoelastic solid when applied to the surface of such a solid. Also disclosed are methods of reducing, retarding or preventing blocking of a viscoelastic solid, and the products of those methods which are viscoelastic solids resistant to blocking.

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: A device to prevent incursion of wild elephants into human populated areas, and thereby protect the lives of both wild elephants and humans living in close proximity to elephant refuges, is disclosed. The device incorporates a series of rollers that discourage an elephant from crossing the device. Multiple units may be linked together to form a barrier of any desired length. The border on the frame of each unit is protected by a guard that pinches the foot of an elephant attempting to cross over on the butted edges where two units meet. Alterative embodiments of the device may include roller protrusions, a chemical repellent dispersant, and an electrified conductor wire.

Abstract: A barrier is fixed on a wall or other perimeter structure by way of support posts. The barrier has a support shaft along which a number of rotatable units are mounted. Each rotatable unit is formed from two interengaged elements, each element having been formed from a length of metal tubing. Part of the tubing has been cut longitudinally to define blades extending from one end of a tubular portion, and splayed outwardly and spaced apart. Two such elements are assembled so that their blades interengage to form one of the units. The rotatable units so constructed are simple to manufacture, but provide an effective barrier.

Abstract: An attachment to a fence, such as a chain link fence, used to confine a dog, prevents the dog from climbing the fence or using the top of the fence to assist himself in escaping over the fence. The attachment creates a region of instability, superjacent the top of the fence, which will not support the dog's weight and thus does not allow the dog to cling to or push off of the top rail of the fence. The region of instability is created by a freely rotatable roller attachment or a flexible panel attachment, both of which yield under the weight of the canine.

Abstract: A free standing barrier structure consists of two or more modular panels of height and length significantly greater than thickness, disposed to extend generally along a fence line, and a connector for pivotal joining of adjacent modular panels. Each connector consists of a cylinder element of a first diameter and having an upper surface and a lower surface, and a rod element of a second diameter relatively smaller than the first diameter, the cylinder element and rod element being joined in coaxial arrangement. Each modular panel defines at least one vertical tunnel adjacent each end, each tunnel defining a first portion of size and diameter for receiving the cylinder element snuggly therewithin and further defining a second portion, coaxial with the first portion, of diameter for receiving the rod element therewithin, and joiners for connectors in tunnels of adjacent modular panels.

Abstract: A rotary anti-scaling device comprises a pair of substantially identical halves connected together at a relative displacement of 180.degree. about a central transverse axis through the halves to form a unitary spike. Each half includes a central body portion with a central, transversely-extending bore therethrough permitting rotation of the unitary spike on an associated mounting bar, one or more projections extending from opposed ends of each body portion and at least one of the body portions having means formed thereon for co-operating with an adjacent spike to locate said spike in a position displaced angularly about its transverse axis relative thereto.

Abstract: An intruder barrier for mounting on the top or side face of a wall is provided. The intruder barrier consists essentially of a scaling barrier formed from a number of blades radially arranged and rotatable about a longitudinal axis so that any attempt to climb the wall is foiled as the blades simply rotate thus not providing a firm hold for the would-be intruder.

Abstract: The inclined projecting spikes used by parking lots to discourage entrance through the exit are guarded for protection of pedestrians. The guards take the form of either shrouds over the spikes or movable members disposed near the point of the spikes and spring-biased so that the guards will not deflect under the weight of a pedestrian's foot, but will deflect under the weight of an automobile wheel to thereby expose the spikes and deter runaway entry into the exit of a parking lot.

Abstract: A climb inhibiting structure for integration with, or attachment to, a fence run incorporating a longitudinally extending rod-like bearing member that is mounted in parallel-displaced relationship with the top extreme of the fence run. A series of relatively short turn cylinders are rotatably mounted, end-to-end, about the bearing member. A plurality of spine-like members extend radially outwardly from the surface of each rotatable member in spaced relationship precluding purchase by an animal's leg or paw. The spines are preferably yieldable so as to substantially minimize injury to climber, with rotation of the spine carrying member precluding a purchase by means of which the climber might pull itself up and over the fence.