Class 256/12 - Unstable

Subclass of Class 256 - Fences
Definition: Fences wherein the top guard has an unstable or movable
No. of patents: 31
Last issue date: 04/24/2012

Number	Title	Issue Date
8162292	Animal barrier device An animal barrier device comprising one or more rotating bodies and fixture structures, in which in use the fixture structures, rotatably support the one or more rotating bodies on a construction with which the animal barrier is used, in which each rotating body is ...	04/24/2012
7419140	Security fence module A fence module is adapted for installation without required anchoring buy providing a base frame and a plurality of upright supporting posts extending from the base frame. At least three fence sections extend between the supporting posts. A first fence section at a ...	09/02/2008
7325787	Barrier A barrier formed from one or more barrier tapes, which may be barbed. Two lower barrier tapes are supported on the opposed projecting arms of outrigger system installed atop a structure such as a wall, gate or fence. Each extended lower barrier tape is formed from l...	02/05/2008
7110625	Apparatus to induce stress into a fiber optic cable to detect security fence climbing A stress inducing device for inducing stress into a fiber optic cable is useful for detecting a person attempting to breach a security fence by climbing over the security fence. A stress inducing device is attached adjacent to a top of each fence post of the securit...	09/19/2006
7068166	Break-in detection system A break-in detection system includes a detection sensor of an FBG type for detecting an intruder trying to climb over a fence around a premises, and a detection sensor of an OTDR type for detecting an intruder trying to demolish the fence. A fiber optic cable used a...	06/27/2006
7032889	Anti-scaling device 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...	04/25/2006
6880811	Pond protection system A protection system including a plurality of wires and a plurality of support members for supporting the plurality of wires. Each support member includes a base and an associated spike positionable in supportive engagement with a ground surface, and an elongate arm ...	04/19/2005
6585233	Animal-repelling apparatus An apparatus for repelling animals which is attachable to the top of any external barrier. The apparatus has an elongated hollow roller with an opening on each of its two ends; an end cap, with an aperture for receiving an axle, seated in a water-tight ma...	07/01/2003
6418674	Bird repellant method and system The present invention is directed to a line barrier system and method of installing such a system which includes, a plurality of modular supports having a base for mounting to the structure, with the supports having at least one projecting member extendin...	07/16/2002
6415553	Privacy screen for workstations A privacy screen assembly for work spaces of the type having spaced-apart partition panels forming an opening for user ingress and egress therethrough. The privacy screen assembly includes a privacy screen defining a lower edge, and at least one roller mo...	07/09/2002
6206347	Juvenile security fence A juvenile security fence system enclosing an area is formed by a plurality of line, terminal end and corner posts with each post being characterized by a vertical base section having its depending end portion embedded in the earth and having a portion of...	03/27/2001
6125197	Method and apparatus for the processing of stereoscopic electronic images into three-dimensional computer models of real-life objects A method and apparatus for extracting three-dimensional (3-D) data from a target object is disclosed. A plurality of markers are formed on the object. A plurality of images are captured of the object. A first point is designated from a marker from one of ...	09/26/2000
6102375	Crowd control barrier A barrier module having an elongate hollow base portion adapted to rest on the ground or equivalent surface and to be filled with liquid, preferably water. The module also includes an elongate upper portion disposed above the base portion, and a wall the ...	08/15/2000
5461364	Intrusion detection device An intrusion detection device that can be used singly or in multiplicity to immediately and silently alert the user of attempts to climb over a security fencing system. The invention consists of a base element which attaches to the security fencing, and a...	10/24/1995
5310163	Barriers 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 ...	05/10/1994
5267724	Fencing apparatus for containing cats A novel apparatus and system for securing the integrity of an enclosure against escape or entry by cats. The invention provides a retrofit for common suburban fences which doesn't detract from the ambiance of the garden or injure the cats trying to get in...	12/07/1993
5143354	Animal retentive fence attachment 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 t...	09/01/1992
5102103	Child safety fence A child safety fence for preventing unsupervised children from entering swimming pools includes a plurality of spaced apart substantially vertical supports having a flexible line extending between and slidably supported by the supports. A flexible netting...	04/07/1992
5040772	Rider protection system A protection system to prevent or minimize likelihood of injury to a rider at a racetrack if the jockey is thrown over the rail which surrounds the track. Usually the rail is supported by a curved post which extends upwardly from the ground and inwardly t...	08/20/1991
4962619	Apparatus for deterring birds Improvements to a bird deterrent apparatus comprising a coiled wire in which the wire is attached to an elongate strip having flaps punched therein which are bent and crimped over the wire to hold it in position, and a spring having bent end loops used to...	10/16/1990
4920331	Security barrier with intrusion sesning and delaying means A security installation for a property includes an imperforate protective barrier, a plurality of spaced posts extending upwardly from the top of the barrier and a plurality of spaced trip wires extending between the posts for detecting the presence of an...	04/24/1990
4916433	Protection of property A security installation includes a primary barrier section protruding upwardly from a substrate and extending along the substrate in a first direction, a secondary barrier section protruding from, and extending along, the primary section, with the seconda...	04/10/1990
4739970	Rotary anti-scaling device A rotary anti-scaling device comprises a pair of substantially identical halves connected together at a relative displacement of 180° about a central transverse axis through the halves to form a unitary spike. Each half includes a central body portion wi...	04/26/1988
4676485	Intrusion warning wire fence This invention relates to an intrusion warning wire fence secured to spaced supporting poles. The fence comprises one or more electrical and/or optical conductors, preferably optical fibers, which may be either (1) incorporated within one or more tubular ...	06/30/1987
4571578	Intrusion barrier and detection apparatus A ported coaxial cable is positioned within a coil of barbed wire and is coextensive therewith. Radio frequency energy applied to the cable is confined within the tubular volume of the coil. Variations in the reflected energy caused by physical disturbanc...	02/18/1986
4348012	Intruder barrier 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 ...	09/07/1982
4270736	Climb inhibiting rail 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 relativ...	06/02/1981
4262169	Aerial cable guard A cable guard having a cover which rotates about an aerial cable when stepped upon by an animal. A weight maintains the cover in an upright position when no animals are on the cover....	04/14/1981
4110944	Animal protective guard An animal guard assembly for protecting pedestals for underground telephone lines or electrical transmission lines comprising an animal guard assembly carrying animal repelling elements, such as, barbs, mounted on a support arm and means for removably att...	09/05/1978
4110943	Animal guard Animal guard assembly for attaching to a support member for an electrical pedestal or to the top of the pedestal for guarding against animals rubbing same, the device comprising an outer support assembly or guard member carrying animal repelling elements ...	09/05/1978
4081177	Break-away outrigger An outrigger arm assembly to prevent a would-be intruder from successfully climbing over a fence. The outrigger arm assembly is mounted on top of the fence. Each hollow fence post is interconnected to a hollow outrigger arm by a replaceable collar which b...	03/28/1978

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Class 256/12 - Unstable