Barbed Patents (Class 256/2)
  • Patent number: 10624332
    Abstract: A protective screen against aggressive animals, including a structure formed by frames provided with pointed elements which are installed for the purpose of creating secure zones that are protected against possible attacks from dangerous animals. A series of elemental modules having a square or rectangular tubular frame in polyethylene or hard plastic having four lances directed towards the centre but forming an angle “?” with the plane defined by the frame. Each lance has a shaft of the same material as the frame and a steel metal lance point that is protected against corrosion.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 21, 2020
    Inventors: Gerard Maiquez Ferrer, Antonio Sánchez Gallardo
  • Patent number: 10519690
    Abstract: A barb tape (10) includes: (i) a first wire (14, 114); (ii) a second wire (16, 116) that is spaced from, and extends substantially parallel to the first wire (14, 114); and (iii) an elongate strip material (12, 112) defining: a spine (18, 118) and a plurality of barbs (22, 122) extending from at least one major edge (20) of the spine (18, 118), wherein the spine (18, 118) crimps the first (14, 114) and second (16, 116) wires.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 31, 2019
    Inventor: George Anton Harrop-Allin
  • Patent number: 9297179
    Abstract: Razor wire which includes a core wire, an electrically insulating sheath over the core wire and a strip, with a plurality of barbs, which is crimped, along two lines, on opposing sides of the sheath, positioned so that the sheath is not damaged during the crimping process.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 29, 2016
    Assignee: BIRMINGHAM BARBED TAPE LTD.
    Inventors: Ronald Smith, Steven David Cochrane
  • Patent number: 9157203
    Abstract: There is disclosed a barrier assembly for shoreline preservation or restoration comprising a gabion having opposed side walls connected together at spaced intervals along the length of the gabion by a plurality of partition walls, the spaces between neighboring pairs of partition walls defining, together with the side walls, at least one individual compartment of the gabion, the at least one individual compartment of the gabion being bounded by the respective opposed side walls or by opposed side wall sections of the respective opposed side walls, the partition walls being pivotally connected to the side walls, the individual compartment of the gabion having extending therefrom in a direction away from the individual compartment convergent at least partly open framework panels forming or forming part of a protuberant compartment on the gabion. A method of preserving and restoring a shoreline, and use of a barrier assembly is also disclosed.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: October 13, 2015
    Assignee: HESCO BASTION LIMITED
    Inventors: James Heselden, Thomas L. Brand
  • Patent number: 8720361
    Abstract: The invention is directed to a security barrier for preventing trespass onto a water vessel. The security barrier includes one or more modular frame members, a strand of razor wire attached to the frame member and a suspension fastener for removably suspending the security barrier from a mounting surface of a water vessel.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 13, 2014
    Inventors: Daniel A. DiBruno, Sr., Marvin Weinberger
  • Publication number: 20130062584
    Abstract: An active security system with a rotating spoke and hub apparatus with razor wire, barbed wire or other types of sharp objects affixed to the spokes that is free standing or on top of an existing fence or wall and mounted to stationary columns. A motor and linkage provide for the active rotation of the rotating spoke and hub structure. The motor is activated by sensors that detect a presence of an intruder.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Inventor: Larry Chrtis Edmondson
  • Patent number: 7909309
    Abstract: An antipersonnel barrier system includes at least one concertina coil and a plurality of spaced support members. Each of the support members includes a base section and a vertical section. Each of the concertina coils is secured to the support members to provide a horizontally and vertically stabilized barrier. A length limiting cable is provided to limit the length of spacing between adjacent support members. The support members can include anchoring structure for securing the support members to a support surface. In one embodiment, the concertina coils include two small diameter base coils and a top coil positioned on the base coils.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: March 22, 2011
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Robert W. Major, Donald Scott Shipley
  • Patent number: 7896317
    Abstract: A deployment system and associated products utilize a magazine for holding and dispensing the products. The products may have any of a number of internal and external trusses that may be in tension and/or compression for rigidifying the product in selected directions. Thus the product may be shaped to fit a predetermined contour. The magazine may be supported on a deployment vehicle for ease of deployment of the product.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: March 1, 2011
    Inventor: Michael V. Pavlov
  • Patent number: 7883074
    Abstract: In barbed tape products, adjacent pairs of loops may be attached to each other at an attachment point that is circumferentially offset relative to an attachment point of the adjacent pair of loops. A system for producing a barbed taped product is controlled by an electronic controller to provide a predetermined pattern of attachment points. A pattern of attachment may be varied from roll to roll, between rolls, and/or within a given roll to provide a predetermined natural configuration of the product in a deployed state. The system and method eliminates the need for ceasing production between rolls in order to re-thread. Attachment elements are sized and configured for strength and accuracy in automatically attached barbed tape products. A deployment system and associated products utilize a magazine for holding and dispensing the products. The products may have any of a number of internal and external gasses for rigidifying the product.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: February 8, 2011
    Inventor: Michael V. Pavlov
  • Patent number: 7880612
    Abstract: The invention comprises of a method and alarm device used to prevent metal theft from irrigation systems. The alarm device attaches to a plurality of electric conductor such as copper wiring that is in need of protecting and the preexisting irrigation system circuit. The alarm device detects voltage in the irrigation system circuit and if there is no voltage signals from the irrigation system circuit, then the alarm device automatically breaks the original circuit and inserts itself into the irrigation system circuit. The alarm device then sends a low voltage, low current down the plurality of electric conductors and the plurality of conductors then become part of a circuit that energizes a magnetic switch located in the alarm device. A breach of integrity of the plurality of conductors such as by physical detachment triggers an alarm condition which lead to audio and visual alarms plus activating an automated dialer.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: February 1, 2011
    Inventor: Gary Caswell
  • Publication number: 20090140224
    Abstract: A fencing stake for securing a cord. The fencing stake of the present application creates a more usable and robust fence. The fencing stake has a shaped cross-sectional portion. The fencing stake also includes an anchor, wherein the anchor is formed from at least one shaped aperture having an insertion aperture for inserting the cord and at least two vertical apertures connected to the insertion aperture for securing the cord. The fencing stake further includes an end portion for placing the stake into the ground.
    Type: Application
    Filed: October 21, 2008
    Publication date: June 4, 2009
    Inventor: Suchin Ratanasiriwilai
  • Patent number: 7481444
    Abstract: A deployment system and associated products utilize a magazine for holding and dispensing the products. The products may have any of a number of internal and external trusses that may be in tension and/or compression for rigidifying the product in selected directions. Thus the product may be shaped to fit a predetermined contour. The magazine may be supported on a deployment vehicle for ease of deployment of the product.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: January 27, 2009
    Inventor: Michael V. Pavlov
  • Publication number: 20080217596
    Abstract: A modular fencing structure which comprises a plurality of spaced-apart, vertical support posts, which are secured in the ground by burying them a predetermined depth, optionally in concrete or the like. A plurality of horizontal support rails are fastened to the posts, interconnecting them and providing an attachment point for mounting the security panels. The security panels are manufactured from galvanized steel, are ribbed to provide maximum integrity, and are fastened to the horizontal support rails by means of one-way, tech-screw security fasteners or welding. Additional security measures, such as barbed wire or razor ribbon, are easily attachable to the top of the posts for applications where ultimate security is desired.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 11, 2008
    Inventor: John C. Dolan
  • Patent number: 7419140
    Abstract: 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 first extreme end of the fence module, a second fence section at a second extreme end of the fence module, and a third fence section angularly positioned between the first and second fence sections. A pair of vibration sensing modules are used to detect intruders, one applied to the first fence section and a second applied to the third fence section, with the first fence section positioned on the secure end of the protected zone.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: September 2, 2008
    Assignee: Safeguards Technology LLC
    Inventor: Haim Perry
  • Patent number: 7419139
    Abstract: A barbed tape product as adjacent pairs of loops in which the loops of a pair are attached to each other at an attachment point that is circumferentially offset relative to an attachment point of the adjacent pair of loops. Additional attachment points may be provided in helically progressive positions between the first and second attachment points. The attachment points are positioned on one pair of loops so that each of the attachment points are circumferentially offset relative to all other attachment points on an adjacent pair of loops. The attachment points may be positioned in a predetermined helically progressive pattern on a coil of the product. The pattern may provide a predetermined natural configuration of the product when the product is in a deployed state of use. Attachment elements for attaching strands of the product together are sized and configured for strength and accuracy in automatically attached concertina or other barbed tape products.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: September 2, 2008
    Inventor: Michael V. Pavlov
  • Patent number: 7331568
    Abstract: Apparatus for dispensing coiled barb tape which includes a frame in which is located a boom from which the coiled barb tape is suspended. The boom is extensible to assist in deployment of the barb tape and the frame, apart from protecting the coiled barb tape, provides a stacking characteristic with similar frames.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: February 19, 2008
    Assignee: Cochrane Steel Products (PTY) Ltd.
    Inventor: Richard Bruce Cochrane
  • Patent number: 7325787
    Abstract: 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 loops having a substantially elliptical shape, with a major axis which extends parallel to the outrigger arm supporting it, with a length substantially equal thereto. The ratio of major axis length to minor axis length in each loop is between about 2 and about 5. A third and upper barrier tape, formed from loops with a circular shape, is positioned between the two lower barrier tapes, in at least partially overlying relationship to the lower barrier tapes.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: February 5, 2008
    Inventor: Edward L. Gibbs
  • Patent number: 7290756
    Abstract: A deployment system and associated products utilize a magazine for holding and dispensing the products. The products may have any of a number of internal and external trusses that may be in tension and/or compression for rigidifying the product in selected directions. Thus the product may be shaped to fit a predetermined contour. The magazine may be supported on a deployment vehicle for ease of deployment of the product.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: November 6, 2007
    Inventor: Michael V. Pavlov
  • Patent number: 7044447
    Abstract: A barrier system utilizing cutters that have been connected into strips, with the strips connected to form a substantially planar barrier sheet. The barrier sheet may be encased by breakable separators, which cover the cutters to prevent inadvertent injury but expose the cutters when broken upon an attempt to penetrate the barrier. The barrier may be retracted into an opening, preferably into a concealed compartment.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: May 16, 2006
    Inventors: Renne Cano, Steven John Cano
  • Patent number: 6926262
    Abstract: A barrier structure includes a continuous piece of elongated metal tape. The metal tape includes barbs spaced along an elongate body. Each of the barbs is connected securely to a barb root, and each barb root is connected securely to the elongate body. A first region of the elongate body is adjacent to each barb root, and a second region of the elongate body is adjacent to each first region distal from the barb root. A third region of the elongate body adjacent to each second region distal from the first region extends lengthwise from each second region and meets a corresponding third region that is extending lengthwise away from another second region. Each second region extends transversely and inwardly from the adjacent first region and the adjacent third region.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: August 9, 2005
    Inventor: Michael V. Pavlov
  • Patent number: 6836213
    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.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: December 28, 2004
    Assignee: Safeguards Technology, Inc.
    Inventor: Haim Perry
  • Patent number: 6802495
    Abstract: A pull through fence clip is provided which is made of a single length of rod that is bent or shaped to form a device having an axis composed of two pins located at either end and a centrally located square-shaped body. The pull through fence clip is attached to a fence post by use of a commonly available post staple clip. The use of the present invention securely attaches a section of fencing wire to a fence post while allowing the individual fence wire to freely move along the line described by its longitudinal axis. The importance of this design is that it allows the fence to flex and compensate for changing conditions without impacting the general integrity and aesthetic quality of the fence as a whole.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: October 12, 2004
    Inventor: Roland F. Schmidt
  • Patent number: 6646551
    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.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: November 11, 2003
    Inventor: Haim Perry
  • Patent number: 6607184
    Abstract: An articulating fence post and gating system, which resiliently articulates from an upright position, perpendicular to the ground, to a flattened position, parallel with the ground, is described. The gating system comprises at least one resiliently articulating fence post, where the posts are connected by strands of fencing material. The gating system may be disposed with a standard stationary fence or an articulating fencing system. The gating system of the present invention avoids damage from a collision between farm equipment, such as a mobile irrigation system, and the fence by having the gating portion resiliently articulate, from an upright position to the ground, in order to allow the mobile equipment to run over the gate portion without breaking fence posts or snapping strands of fencing material. Once the equipment completely rolls over the gated portion of the fence, the gated portion automatically returns to its upright position.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: August 19, 2003
    Inventor: Donald C. Brown
  • Patent number: 6601830
    Abstract: A barrier structure includes a continuous piece of elongated metal tape. The metal tape includes barbs spaced along an elongate body. Each of the barbs is connected securely to a barb root, and each barb root is connected securely to the elongate body. A first region of the elongate body is adjacent to each barb root, and a second region of the elongate body is adjacent to each first region distal from the barb root. A third region of the elongate body adjacent to each second region distal from the first region extends lengthwise from each second region and meets a corresponding third region that is extending lengthwise away from another second region. Each second region extends transversely and inwardly from the adjacent first region and the adjacent third region.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: August 5, 2003
    Inventor: Michael V. Pavlov
  • Publication number: 20020070378
    Abstract: An articulating fence post and gating system, which resiliently articulates from an upright position, perpendicular to the ground, to a flattened position, parallel with the ground, is described. The gating system comprises at least one resiliently articulating fence post, where the posts are connected by strands of fencing material. The gating system may be disposed with a standard stationary fence or an articulating fencing system. The gating system of the present invention avoids damage from a collision between farm equipment, such as a mobile irrigation system, and the fence by having the gating portion resiliently articulate, from an upright position to the ground, in order to allow the mobile equipment to run over the gate portion without breaking fence posts or snapping strands of fencing material. Once the equipment completely rolls over the gated portion of the fence, the gated portion automatically returns to its upright position.
    Type: Application
    Filed: February 4, 2002
    Publication date: June 13, 2002
    Inventor: Donald C. Brown
  • Patent number: 6029953
    Abstract: An improved animal barrier material and an improved fastening system to simplify its knotting process are disclosed. In the preferred embodiment, a plurality of multi-stranded metallic cables are joined together using parallel overhand knots. A pair of metallic cables may be taken together to form substantially adjacent portions which then form a loop. The pair of metallic cables passes around a portion of the loop and through the loop to form a overhand know. Such a knot minimizes stress and fatigue on the netting and makes the netting nearly invisible to the naked eye at a distance of more than a few feet.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: February 29, 2000
    Assignee: Arizona Sonora Desert Museum
    Inventor: Ken A. Stockton
  • Patent number: 5997211
    Abstract: A gate barrier includes two parallel posts, a folding collapsible barrier pivoted to one post and turned by a power drive to close/open the passage way between the posts, wherein the folding collapsible barrier has a barbed bottom rail which is supported on the ground to prevent vehicles from passing when the folding collapsible barrier is turned to a horizontal position to close the passage way.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: December 7, 1999
    Inventor: Pi-Cheng Chou
  • Patent number: 5852402
    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.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: December 22, 1998
    Assignee: Safeguards technology, inc.
    Inventor: Haim Perry
  • Patent number: 5788223
    Abstract: An improved animal barrier material and an improved fastening system to simplify its knotting process are disclosed. The animal barrier material comprises a see-through cable netting characterized by strong and secure knots. An improved fastening system may be employed to simplify knotting and produce superior cable connections. The improved fastening system requires only a single spool of cable to form grids for netting; its simplified knotting process does not require passing a spool of cable through any previously-tied portion of the net. The resulting cable netting provides a superior see-through netting for simultaneous containment and visual enjoyment of zoo animals.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: August 4, 1998
    Assignee: Arizona Sonora Desert Museum
    Inventor: Kenneth A. Stockton
  • Patent number: 5577712
    Abstract: A barbed rope or cord that can be carried for quick and easy barbed wire fence repair without the requirement of heavy tools or cutters for installation or cutting is disclosed. The rope or cord is a synthetic material, such as polyester, or a natural material such as cotton or hemp. The barbs are metal or made of other material capable of having sufficiently sharp ends to act as a deterrent against animals pressing against the barbed wire fence. The material from which the rope or cord is made is very flexible to allow the barbed cord to be wound onto itself into a ball or bundle for easy of carrying and storage. In use, a sufficient length of a barbed cord would be unwound from the bundle or ball, easily cut with a knife, and then strung on the fence, with opposite ends of the cut replacement material being easily tied to the fence post or loose ends of the barbed wire being repaired.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: November 26, 1996
    Inventor: P. H. White, Jr.
  • Patent number: 5530430
    Abstract: The invention is a barbed tape barrier that includes a tube that acts as a support for the loops of barbed tape. Located within the tube is a fiber optic cable that is vibration sensitive and connected to a control unit. If an intruder disturbs the barrier, the resultant vibrations will be detected by the control unit and an alarm will be actuated.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: June 25, 1996
    Inventor: Michael Pavlov
  • Patent number: 5401002
    Abstract: A barbed tape includes a central supporting portion and a plurality of barb clusters disposed at spaced apart locations along the central supporting portion, each barb cluster having first and second pairs of oppositely extending substantially planar barbs disposed on opposite edges of the central supporting portion and connected thereto, the barbs having a cross section which is at least partially arcuate, whereby the barbs are substantially stiffened against bending.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: March 28, 1995
    Inventor: Daniel W. Major
  • Patent number: 5139234
    Abstract: A fencing component is made from substantially co-planar loops of barbed tape which overlie each other and which are progressively spaced apart in a first direction. The sizes of the loops are chosen so that the overlying loops form apertures of desired sizes.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: August 18, 1992
    Assignee: Cochrane Steel Products, Limited
    Inventor: Richard B. Cochrane
  • Patent number: 5074529
    Abstract: A clip is disclosed for connecting two adjacent loops of segment bent helical barbed tape in close proximity to one another at a nesting point of two contiguous folds to form a concertina antipersonnel barrier. The clip includes first and second opposed flaps. The first flap includes an elongated semi-circular aperture extended therethrough and dimensioned to surround the contiguous folds in their entirety such that the clip reinforces the areas of stress concentration that lie proximate the contiguous folds. The second flap includes an identical elongated semi-circular aperture extended therethrough which functions to promote stacking of adjacent coils of helical barbed tape during storage. The clip further includes a unitarily formed locking mechanism defined by an extruded cylindrical sleeve disposed on the first opposed flap and a circular aperture extended through the second opposed flap.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: December 24, 1991
    Assignee: MRM Security Systems, Inc.
    Inventors: John W. Mainiero, Michael R. Mainiero, Thomas J. Heinlein
  • Patent number: 4887796
    Abstract: Barbed tape made from an elongated metal strip having a plurality of pairs of barbs formed along the edges thereof and the portion of the strip forming each barbed pair has a second pair of barbs formed therein. The first pair of barbs extend in opposite directions away from each other and the second pair of barbs extend in opposite directions but toward each other. The second pair of barbs serve to retain articles impaled on the first pair of barbs.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: December 19, 1989
    Assignee: American Fence Company
    Inventors: Renne A. Cano, Don W. Boness, Robert W. Major, Gabriel A. Valdez
  • Patent number: 4854521
    Abstract: A fencing wire unwinder and tensioner for constructing wire fences, the apparatus comprising a carrying platform for spools and rolls of fencing wire, whereby the wire is unwound and tensioned in a single operation for attachment to the preset posts of the fence. The device may be adapted for barbed wire only, woven wire only, and chain link only, or barbed wire along with either of the latter. Spools of barbed wire strand and/or rolls of woven or chain link wire are carried rotatably on a platform, the wire being fastened to the fence and unwound therealong as the platform is carried along the fence line by the vehicle. The wire unwound from the roll is tensioned by braking band before leaving the platform. Helpers follow the platform and attach the fencing in tensioned condition to the preset line of posts.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: August 8, 1989
    Inventor: Fred L. Farnsworth
  • Patent number: 4775114
    Abstract: A fencing wire unwinder and tensioner, and method, for constructing wire fences, the apparatus comprising a carrying platform for spools and rolls of fencing wire, whereby the wire is unwound and tensioned in a single operation for attachment to the preset posts of the fence. According to one embodiment, the device is adapted for barbed wire only; to another embodiment, woven wire only; and a third embodiment both barbed and woven wire. Spools of barbed wire strand and/or rolls of woven wire are carried rotatably on a platform, the wire being fastened to the fence to be unwound therealong as the platform is carried along the fence line by the vehicle. As the wire is unwound from the roll it is tensioned before leaving the platform by a braking disc (barbed wire) or an elongate braking drum (woven wire). A braking band is provided for each of the drum and the discs so that the wire is adjustably tensioned as it is drawn from the apparatus.
    Type: Grant
    Filed: August 17, 1982
    Date of Patent: October 4, 1988
    Inventor: Fred L. Farnsworth
  • Patent number: 4744708
    Abstract: A barrier which is extensibly deployed from a vehicle and which includes at least three coils of barbed tape supported and spaced from one another with an upper coil located above two lower coils. The coils are spaced parallel from one another, and are supported, by transverse rods located along the respective lengths of the coils. Each coil is a plurality of short coils which are interconnected in axial alignment in head-to-tail relation, with adjacent short coils having oppositely directed senses of rotation to counterbalance any net rotational forces produced by each short coil.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 17, 1988
    Assignee: Cochrane Steel Products (Proprietary) Limited
    Inventor: Richard B. Cochrane
  • Patent number: 4666129
    Abstract: A metal tape barrier is constructed of straight sections of elongated tape having barbs formed at spaced intervals along the tape. The barrier has a triangular configuration in cross section with the sections of tape forming the legs of the triangle. Adjoining convolutions of the barrier are connected together at spaced points in such a manner that the tape sections assume accordian pleat-like configurations when the barrier is stretched lengthwise for installation. A second set of sections of tape may be added to the barrier and may have their ends connected to intermediate regions of the sections forming the legs of the triangle. This second set of tape sections are disposed to close off the inside of the main triangle of the barrier. Connections to end regions of the tape sections are made at the location of the barbs on the tape so that the barbs project beyond the connections. In one configuration the barrier has a cross section like an isosceles triangle.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: May 19, 1987
    Assignee: American Fence Corporation
    Inventor: Donald J. Dobson
  • Patent number: 4602764
    Abstract: Barrier apparatus including a plurality of generally longitudinally extending barrier members, such as a plurality of strands of barbed wire or a plurality of strands of razor ribbon, and support means for supporting the barrier members in generally cylindrical and circularly spaced apart configuration.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: July 29, 1986
    Inventor: Paulino A. Cacicedo
  • Patent number: 4509726
    Abstract: A metal tape barrier has a generally constant edgewise arcuate curvature and a channel providing a lengthwise bight having a reinforcing wire therein. The tape wraps from about 200.degree. to about 220.degree. of the periphery of the wire, just sufficient to hold the wire in place. Continuous flange regions of the tape extend outwardly of the channel and cooperate with the channel and the reinforcing wire to impart strength to the barrier so that it is self-supporting and is resistant to being collapsed. The tape has barbs formed outwardly of the flange regions and reduced width regions of the flange regions at the roots of the barbs enhance the penetration capabilities of the barbs.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: April 9, 1985
    Assignee: American Security Fence Company
    Inventors: William G. Boggs, David S. VanDenburgh, Gabriel A. Valdez
  • Patent number: 4484729
    Abstract: An entanglement barrier coil dispenser is disclosed wherein a frame supports a coil dispensing drum. The drum is designed to house a coil preliminary to its deployment, for example, as an anti-personnel barrier. The coil is extensible and retractable about its central axis between stretched and collapsed conditions and when housed within the drum is in collapsed condition coaxially aligned with a drum central axis. The frame in the specifically disclosed embodiment has a pair of skids for sliding surface movement upon vehicular towing, e.g., of the frame. The drum is supported for rotation on the frame whereby torsional stress within the coil during its deployment is automatically relieved to assure a desired obstacle emplacement without coil buckling.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: November 27, 1984
    Assignee: Man Barrier Corporation
    Inventors: Joseph J. Mainiero, Michael R. Mainiero, Arthur T. Stanley
  • Patent number: 4196890
    Abstract: A security fence is described comprising a plurality of barbed wires supported on spaced posts and extending in a generally parallel horizontal direction to the ground surface, alternate wires being supported on opposite sides of each post in the manner of a basket weave configuration such that the wires in plan view cross each other. Alternate wires are connected to a source of electric power, with the intermediate wires being earthed.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: April 8, 1980
    Assignee: Electroreps S.A. (Pty) Ltd.
    Inventor: Gunther D. Einhorn
  • Patent number: 4031284
    Abstract: Fence fabric formed of a multiplicity of entwining electrically conductive metal wire cores each coated with a heat disintegrable electrical insulation is rendered susceptible to grounding by disposing each of said metal cores in contact with at least one electrically conductive ground element. To produce this product, one or more of the foregoing conductive elements is placed in permanent contact with each coated wire of the fence fabric and sufficient current passed through said conductive element to disintegrate the insulation coating and provide an electrically conductive path between the metal core of each of said wires and said electrical conductor.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: June 21, 1977
    Assignee: Colorguard Corporation
    Inventor: Glen E. Ingraham