Non-conductive fencing
The present invention is directed to a composite fence system comprised of fiber reinforced polymers and other polymers. In this regard, the present invention provides a composite fence system that is strong, durable, substantially non-conductive, and generally transparent to electromagnetic energy. The composite fence system includes at least one composite fence panel, at least one support member such as a support post or a stiffening plate, and a composite plug or fastener that is received by one or more apertures defined in the composite fence panel for coupling the composite fence panel to the support member.
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1. Field of the Invention
This invention relates generally to fences, and more particularly to a non-conductive, electromagnetic energy transparent fence system that may be comprised of a fiber reinforced polymer, other non-conductive materials, and other materials that provide a significantly reduced electromagnetic energy signature.
2. Description of the Related Art
Historically, fences were constructed for one basic purpose—to provide a barrier against entrance or exit of an enclosed area by persons or animals such as livestock. A variety of fence designs have been used to meet this basic purpose. For example, stone walls, wooden pickets, iron gates, and other fence constructions are commonplace. One relatively cost-effective and widely-used fence design is depicted in
Fences of the type depicted in
It is desirable then to produce an improved fence system that preserves the strength, durability, and stiffness of conventional fence systems while also providing non-conductivity and electromagnetic energy transparency. Further, it is desirable that such fence systems be aesthetically pleasing, simply constructed, and modular.
BRIEF SUMMARY OF THE INVENTIONThe present invention addresses the above needs and achieves other advantages by providing a composite fence system comprised of fiberglass or other fiber reinforced polymers. More particularly, the present invention is directed to a composite fence system comprised of one or more composite fence panels, one or more composite support members, and one or more composite plugs. Each of the panels, support members, and plugs are comprised of fiber reinforced polymers, or other non-reinforced polymer materials (collectively referred to herein as “polymer-based materials” and/or “composite materials”). In this regard, the present invention provides a composite fence system that is strong, durable, non-conductive and substantially transparent to electromagnetic energy.
In one embodiment, the composite fence system comprises a composite fence panel formed from polymer-based materials. The composite fence panel is molded having a grid structure defining a plurality of apertures. The composite fence system also includes a composite support member and a composite plug. The composite support member is formed from polymer-based materials and includes a support surface defining a bore. In other embodiments, the composite support member may define a slot instead of the bore referenced above. The composite plug is formed from polymer-based materials and includes a wedge portion and a threaded member extending from the wedge portion. A composite nut is also provided that is comprised of polymer-based materials and structured to rotatably engage the threaded member of the composite plug.
The composite fence panel is coupled to the composite support member by seating the wedge portion of the composite plug into one of the plurality of apertures of the composite fence panel. The support surface of the composite support member is positioned adjacent the composite fence panel such that the threaded member of the composite plug extends through the bore (or slot) defined in the support surface of the composite support member. The composite nut is tightened over the threaded member of the composite plug such that the support surface of the composite support member is pressed against the composite fence panel.
Various types of composite support members may be used including composite posts, composite stiffening plates, composite P-clamps, composite C-clamps, or other similar structures. Each of these composite support members operates in conjunction with composite plugs or composite bolts to secure, stabilize, stiffen, or otherwise support one or more composite fence panels as described in detail below.
Composite plugs structured according to various embodiments of the present invention are adapted for insertion into apertures defined between first and second surfaces of a composite fence panel. The composite plug acts as a washer or grommet allowing a superior connection or fit as compared to a threaded fastener and a washer. Each composite plug is comprised of a wedge portion and a threaded member extending from the wedge portion. The wedge portion is comprised of polymer-based materials and is structured to be seated within apertures defined between the first and second surfaces of the composite fence panel. The threaded member is comprised of polymer materials and is structured to extend from the wedge portion through the aperture a protruding distance beyond the second surface of the composite fence panel when the wedge portion is seated within the aperture. In one embodiment, the wedge portion and the threaded member are integrally formed. In other embodiments, however, the wedge portion and the threaded member of the composite plug are formed separately and then adhered together.
In another embodiment, the composite plug may be molded integrally within the composite fence panel as discussed in greater detailed below. In such embodiments, only a composite bolt, composite nut, and optional composite washer need be provided to secure the composite fence panel to a composite post or other support.
Another embodiment of the present invention is directed to a method of manufacturing composite fence systems of the type described above. In one embodiment, the method includes the following steps: forming a composite fence panel comprised of fiber reinforced polymer materials, the composite fence panel having a grid structure defining a plurality of apertures; forming a composite support post comprised of fiber reinforced polymer materials, the composite support post having a support surface defining a bore; forming a composite plug comprised of polymer materials, the composite plug having a wedge portion and a threaded member extending from the wedge portion; seating the wedge portion of the composite plug into one of the plurality of apertures defined in the composite fence panel; positioning the support surface of the composite support post adjacent the composite fence panel such that the threaded member of the composite plug extends through the bore defined in the support surface of the composite support post; and tightening a composite nut comprised of polymer materials over the threaded member of the composite plug.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
The present inventions now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout.
In one embodiment, the composite panels 110 are comprised of polymer-based materials. The depicted composite panels 110 are molded from a fiber reinforced polymer material comprised of fiberglass strands supported by a polymer resin matrix. Other reinforcement fibers may be used such as glass fibers, nylon fibers, aramid fibers, and other similar fibers known in the art. The polymer resin matrix may be comprised of polyester, vinylester, epoxy, or other thermosetting polymers known in the art. In one embodiment, composite fences system components are comprised of fiber reinforced polymer materials comprising 65 percent glass fiber by volume. In another embodiment, composite fence system components such as composite fasteners may be comprised of fiber reinforced polymer materials comprising 40 percent glass fiber by volume.
The depicted composite panels 110 are molded to form generally rectangular panels comprising a diamond-shaped grid structure as shown. Although not wishing to be bound by theory, it is believed that the depicted diamond-shaped structure efficiently transmits applied forces throughout the composite fence panel 110. Differently shaped grid structures may also be formed as will be apparent to one of ordinary skill in the art. For example, square, rectangular, oval, circular, or triangular-shaped grid structures may be used. Grid structures of the type described above produce strong composite panels of sufficient stiffness at a reduced material cost as compared to continuous extruded sheets of similar thickness. In one embodiment, the grid structure may define aperture sizes of 1½ inches×1 1/12 inches×1 inch thick. In another embodiment, the grid structure may define aperture opening sizes of 2 inches×2 inches×½ inch thick. Composite panels such as those described above possess a grid structure that also provides significant wind pass-through capability, which can be particularly beneficial for reducing fence system stresses in high-wind environments such as airports.
In various embodiments, the composite fence system 100 is supported by composite posts 120 comprised of polymer-based materials as defined above. In the depicted embodiment, the composite posts 120 are formed from fiber reinforced polymer materials though a process known as pultrusion. Pultrusion is a continuous low pressure molding process using fiber reinforcements and thermosetting resin matrices to form a composite laminate having a uniform cross-sectional shape. The fiber reinforcements are drawn through a resin bath or injected with resin to thoroughly impregnate the fibers. The impregnated fiber is formed to the desired geometric shape and pulled into a heated die. Once inside the die, a thermosetting resin cure is initiated and controlled at precise elevated temperatures. As the composite laminate solidifies it is continuously pulled through the die, thus, taking on the shape of the die. In various embodiments of the present invention, composite posts may be formed by pultrusion to have I-shaped, T-shaped, rectangular, square, triangular, oval, or circular-shaped cross sections. Other non-pultruded composite posts may also be used without deviating from the inventive concepts herein described.
In still other embodiments, composite fence systems may be comprised of composite fence panels formed of one or more pultruded composite members. Such pultruded composite members may define individual pickets extending between transversely aligned composite rails or in other embodiments, individual post members extending between a composite frame disposed about the periphery of the fence panel. Other variants of these designs may be apparent to one of ordinary skill in the art in view of this disclosure. In various embodiments, the pultruded composite members may define one or more apertures for receiving composite fasteners such as the composite plugs and/or composite bolts described herein. The pultruded composite members may be formed integrally into a composite panel or separately formed and then attached to a composite panel, frame, or rail as described above.
In other embodiments, composite fences systems of the type described herein may be produced from various other forming techniques. For example, in one embodiment, at least a portion the composite fence system may be formed by injection molding techniques. Such techniques have recently been found amenable to forming polymer materials and fiber reinforced polymer materials.
Composite fence systems according to various embodiments of the present invention possess a number of desirable characteristics. For example, the composite fence systems described herein are non-conductive and, thus, are uniquely structured to enclose electrical stations, high-tension transformers, or other sources of electricity. The present composite fence systems do not include metallic fasteners that are commonly used in prior art non-conductive fences. Such metallic fasteners may produce unwanted arcing between high voltage devices and the fasteners themselves or interference that can attenuate an electromagnetic signal. The present composite fence systems are corrosion resistant in stark contrast to the conventional metal-based fence system depicted in
Composite fence systems may also be formed having color extending through the entire thickness of fence panels, posts, and/or fasteners without requiring painting. Composite fence systems are strong, durable, light-weight, and resist permanent deflection. Finally, composite fence systems according to various embodiments of the present invention are substantially transparent to electromagnetic energy such as radio waves, microwaves, radar, radio frequency signals, and the like. In this regard, composite fence systems are well-suited for enclosing or shielding radar arrays, RF transmitting towers, airports, and other transmitters or receivers of electromagnetic energy.
For purposes of the present specification and appended claims the term “transparent to electromagnetic energy” refers to a material characteristic whereby the material is structured to allow electromagnetic energy to pass through the material without substantial electromagnetic reflectivity, interference and/or degradation of the electromagnetic energy signal. This term is not intended to limit the present invention only to those materials having “perfect” electromagnetic transparency. For example, one exemplary fence system embodiment has been manufactured from a fiber reinforced polymer that produces 90 percent less electromagnetic energy interference than the interference produced by a standard metallic type security fence. Other fence system embodiments that produce less than 90 percent less electromagnetic energy interference reduction over standard metallic type security fence may be used without deviating from the inventive concepts herein described.
Composite fence systems structured in accordance with various embodiments of the present invention may also be used for retrofit applications. In one exemplary embodiment, components of the present fence system may be used to replace wire mesh or other metallic prior art fence systems disposed near high voltage devices found in electric power stations, generators, and the like. Although not wishing to be bound by theory, it has been noted that prior art metallic fences positioned adjacent such electrical devices are susceptible to an inductive coupling phenomenon whereby significant electrical power is drawn from high voltage electrical devices through the fence where it may injure persons or animals coming in contact with the fence. In one trial, metallic fences disposed adjacent a high voltage electrical device drew over 100 amps from the device.
To alleviate such problems, portions of the composite fence system described herein may be provided to replace all or part of the prior art metallic fence systems. For example, in one embodiment, the wire mesh fence panel may be replaced with a non-conductive composite fence panel while the standard metallic poles are left in place. In such embodiments, it may be desirable to use metallic fasteners for attaching the composite fence panels to the pre-existing metallic posts. In this regard, any electrical charge building in the retrofit fence system is properly grounded. Such retrofit applications may also include removing any barbed or electronic wire to lessen the transit of any electric current along the fence system. By replacing all or part of pre-existing metallic fence systems disposed adjacent high-voltage electrical devices with composite fence system components of the type described herein installers can lessen the inductive coupling effects discussed above, thereby increasing the safety associated with their product. Partial metal/composite fence systems structured as set forth above need not be limited to retrofit applications. As will be apparent to one of ordinary skill in the art, such fence systems may also be installed as new fence systems.
In one embodiment, the composite plug-support member fastener 140 is comprised of first and second composite plugs 130A, 130B that are coupled to a composite stiffening plate 141 as shown. Referring to
In various embodiments, composite plug-support member fasteners 140 may be adapted for securing adjacent composite panels 110A, 110B by pinching the panels between one or more composite plugs 130 and a composite stiffening plate 141 as illustrated in the perspective view provided by
In various embodiments of the present invention the entirety of the composite plugs 130 are molded from fiber reinforced polymer materials or other polymer materials. In one embodiment, the composite plugs are comprised of fiber reinforced polymer materials comprising 40 percent glass fiber by volume. In another embodiment, the composite plugs 130 are integrally formed having an exterior portion 134, a wedge portion 133, and a cylindrical threaded member 132. In such embodiments, as will be apparent to one of ordinary skill in the art, the threaded member 132 is molded as a cylindrical blank and is subsequently machined to define threads. In other embodiments, the composite plug 130 may not be integrally formed. For example, the cylindrical blank may be formed separate and apart from the composite plug and then glued or otherwise adhered to the wedge portion of the composite plug (not shown). Threads could be added to the cylindrical blank before or after the gluing process to complete the threaded member as desired.
In the depicted embodiment, the stiffening plate 141 defines a slot 142 for receiving a threaded member 132 extending from the wedge portion 133 of the composite plug 130 as shown. The threaded member 132 protrudes through the slot 142 once the composite plug 130 has been seated within an aperture 119. The threaded member 132 of the composite plug 130 may be received, upon passing through the slot 142, by a composite washer 137 and a composite nut 138 as shown. As the composite nut 138 is tightened over the threaded member 132 against the composite washer 137 the composite panel 110 is pinched securely between the composite plug 130 and the stiffening plate 141. By attaching composite plugs 130 to the composite stiffening plate 141 on either side of the seam 112, adjacent composite panels 110A, 110B may be securely coupled together as will be apparent to one of ordinary skill in the art.
In the depicted embodiment, the composite bolt 232 is inserted into the bore 235 defined through the composite plug 230. In one embodiment, the bore 235 is comprised of a first portion 235A or pocket and a second portion 235B as shown. The first portion 235A is structured having a diameter slightly larger than the composite bolt head 232A while the second portion is structured having a diameter that is slightly larger than the composite bolt body 232B. In one embodiment, the first portion 235A of the bore 235 may be square, triangular, hexagonal, or otherwise shaped to match the shape of a composite bolt head 232A. Said differently, the first portion 235A of the bore 235 may be adapted to define at least one locking surface that is structured to engage an engagement surface defined by the composite bolt head 232A. In this regard, the composite bolt 232 may be prohibited from turning within the bore 235 as will be apparent to one of ordinary skill in the art. An interface surface 235C is defined between the first and second portions 235A, 235B of the bore for contacting the lower surface of the composite bolt head 232A. In one embodiment, the interface surface 235C is recessed within the composite plug 230 such that the composite bolt head 232A does not protrude from the bore 235. Such protrusions might undesirably allow persons to scale the fence panels or tamper with (e.g., cut) one or more of the composite bolts to gain unauthorized entry to an enclosed area.
In the depicted embodiment, the composite bolt 232 is seated within the composite plug 230 and the composite plug 230 is seated within the composite panel aperture 119. The threaded body 232B of the composite bolt 232 extends a protruding distance through the slot 142 defined in the composite stiffening plate 141 and is received by a composite nut 238 as shown. A composite washer 237 may be optionally provided as discussed above. As the composite nut 138 is tightened over the composite bolt 232 (and possibly against the composite washer 237), the composite panel 110 is secured between the composite plug 130 and the composite stiffening plate 141 as described above.
In still other embodiments, the composite plugs of various embodiments need not rely on threaded fastener/nut combinations. For example, in one embodiment, a composite plug may include (in integrally formed embodiments) or receive (in non-integrally formed embodiments) a cylindrical blank (not shown) having a barbed portion that is received by a stiffening plate or bracket defining a bore (not shown) sized to capture the barbed portion of the blank and thereby securely mount a composite panel between the composite plug and stiffening plate or bracket. Alternatively, composite cotter pin configurations may be used. Other non-threaded and/or tamperproof composite fastener structures may be used that will be apparent to one of ordinary skill in the art in view of this disclosure.
Composite plugs according to various embodiments of the present invention are not limited to use with stiffening plates as described above. For example, as shown collectively in
Referring to
As noted above, the I-shaped composite post 120 depicted in
In one embodiment, the composite edge bracket 152 includes a retaining member 153, a coupling member 154, and a support surface 155. The retaining member 153 is aligned generally parallel to the coupling member 154 and the support surface 155 is aligned generally transversely to the retaining and coupling members 153, 154 as shown. In one embodiment, the retaining member 153 is offset a distance D relative to the coupling member 154 for receiving a composite panel 110 against the support surface 155 as shown. The depicted support surface 155 is structured to support periphery edges 109A, 109B of the adjacent composite panels 110A, 110B while the depicted retaining member 153 is structured to retain the adjacent composite panels 110A, 110B generally flush against the composite post 120 as shown. The depicted coupling member 154 is adapted to receive attachment hardware for securing the composite panels 110A, 110B to the composite post 120. In one embodiment, the coupling member 154 defines one or more bores 156 that are concentrically alignable with bores 124 defined in the support post 120 as shown. Composite bolts 232 may be inserted through the coupling member bores 156 and the support post bores 124. Composite nuts 238 and optional composite washers 237 may be tightened over the bolts 232 to secure the composite edge bracket 252 to the support post 120 as shown. In other embodiments, other non-threaded composite fasteners may be used to secure the composite edge bracket(s) to the composite post(s) as will be apparent to one of ordinary skill in the art.
Referring to
Referring to
In one embodiment, the composite C-clamps 370 are comprised of molded fiber reinforced polymer materials. In other embodiments, the composite C-clamps 370 may be comprised of other polymer materials as discussed above. The composite C-clamps 370 include a pocket portion 374 and first and second coupling portions 372, 373 as shown in
In another embodiment, as illustrated by
In other embodiments, the C-clamps shown in
In another embodiment, as shown in
In the depicted embodiment, the first and second portions 660, 670 of the composite bracket assembly 665 each define plugs 630, 631 extending from opposed sides of the first and second portions 660, 670 as shown. The plugs 630 of the first portion 660 of the composite bracket assembly 665 are structured to be positioned opposite the plugs 631 of the second portion of the composite bracket assembly 665 on either side of first and second composite fence panels 610A, 610B as shown by dashed lines in
In another embodiment, each of the plugs 630, 631 define bores 635, 637 extending through the first and second portions 660, 670 of the composite bracket assembly 665 as shown. In such embodiments, the bores 635, 637 may be structured to receive a composite bolt 632. More particularly, the bores 635, 637 are defined through the plugs 630, 631 such that when the plugs 630, 631 are seated into opposite sides of composite fence panel apertures 619A, 619B, the bores 635 of the first portion 660 are positioned in substantial concentric alignment with the bores 637 of the second portion 670. In the depicted embodiment, the bores 635 defined in the first portion 660 define a cavity 636 for receiving a bolt head 632A. Accordingly, the bolt head 632A may be recessed within the first portion 660 of the composite bracket assembly 660 as shown. In another embodiment, the cavity 636 may define a rectangular shape corresponding to a rectangular bolt head 632A as shown in
In the depicted embodiment, the first and second portions 760, 770 of the composite bracket assembly 765 each define plugs 730, 731 extending from one side of the first and second portions 760, 770 as shown. The plug 730 of the first portion 760 of the terminal composite bracket assembly 765 are structured to be positioned opposite the plug 731 of the second portion of the terminal composite bracket assembly 765 on either side of the composite fence panel 710 shown by dashed lines in
In another embodiment, each of the plugs 730, 731 define bores 735, 737 extending through the first and second portions 760, 770 of the terminal composite bracket assembly 765 as shown. In such embodiments, the bores 735, 737 may be structured to receive a composite bolt 732. More particularly, the depicted bores 735, 737 are defined through the plugs 730, 731 such that when the plugs 730, 731 are seated into opposite sides of the selected clamp aperture 719C the bore 735 of the first portion 760 is positioned in substantial concentric alignment with the bore 767 of the second portion 770. In the depicted embodiment, the bore 735 defined in the first portion 760 defines a cavity 736 for receiving a bolt head 732A. Accordingly, the bolt head 732A may be recessed within the first portion 760 of the composite bracket assembly 760 as shown. In another embodiment, the cavity 736 may define a rectangular shape corresponding to a rectangular bolt head 732A as shown in
In another embodiment, each of the terminal portions 762, 772 define terminal bores 780, 781 as shown. The bores 780, 781 are structured to receive a terminal composite bolt 733. In the depicted embodiment, the terminal composite bolt 733 is shorter than the composite bolt 732; however, in alternate embodiments, the terminal composite bolt 733 may be shorter or longer than the composite bolt 732 depending upon the thickness of the terminal portions 762, 772 as will be apparent to one of ordinary skill in the at. In the depicted embodiment, the terminal bore 780 defined in the first portion 760 defines a cavity 736 for receiving a bolt head 733A. The cavity 736A may be shaped as described above for resisting bolt turning or recessing the bolt head 733A.
Referring to
The depicted composite ring clamp 860 includes a pocket portion 864 and first and second coupling portions 862, 863 as shown. The first and second coupling portions 862, 863 of the ring clamp 860 are placed in face to face contact such that first and second bores 868, 869 defined in the first and second coupling portions 862, 863 may be concentrically aligned. The pocket portion 864 of the composite ring clamp is structured to enclose the cylindrical composite post 820 as shown. In the depicted embodiment, the first and second bores 868, 869 of the first and second coupling portions 862, 863 are structured to receive a composite bolt 332. The composite plug or spacer 830 is disposed in an aperture 819 defined in the composite panel and defines a bore 835 for receiving the composite bolt 832 as described above. A composite nut 838 (and optional composite washer) may be tightened over the composite bolt 832 to lock the composite ring clamp 860 and, thus, the cylindrical composite post 820 to the composite panel 810 as shown. In one embodiment, the first and second coupling portions 862, 863 may be formed spaced apart slightly such that tightening the composite nut 832 over the composite bolt 832 compresses the composite post 820 within the pocket 864 of the ring clamp 860 as will be apparent to one of ordinary skill in the art.
As shown in
The depicted composite coupling member 917 provides a structure for coupling the anti-climb composite fence panel 915 to the first and second composite gusset plates 985, 986 as shown. In various embodiments, composite coupling members 917 may be integrally formed with or otherwise fastened to the anti-climb composite fence panel 915. In the depicted embodiment, the composite coupling member 917 is disposed about a peripheral edge of the anti-climb composite fence panel 915. However, in alternate embodiments, one or more composite coupling members may be formed at one or more positions along the length of the anti-climb composite fence panel in addition to, or instead of, being formed along its peripheral edge as shown. Further, although depicted as continuous structures defined across the full length or width of the anti-climb fence panel, composite coupling members may alternatively be shaped as discrete ribs, ridges, loops, or rings that do not run the full length or width of the anti-climb composite fence panel but still serve as a coupling structure for the panel.
Referring again to
The depicted composite anti-climb assembly 1080 comprises first and second angled brackets or gusset plates 1085, 1086, composite attaching hardware 1040, a composite T-shaped support member 1025, and one or more anti-climb composite fence panels 1015 as shown. As shown in
Referring to
In another embodiment, the cross member of the T-shaped support member may be integrally formed within one or more anti-climb composite fence panels. Said differently, the composite fence panels may be formed having one or more attachment portions extending therefrom. Such attachment portions may be structured to couple to one or more composite posts as noted above.
Referring again to
In another embodiment, the first coupling member 1281 defines an attachment surface 1281A that is structured at an anti-climb angle β relative to an attachment surface 1282A defined by the second coupling member 1282 as shown. In this regard, the anti-climb fence panel 1215 may be secured in an anti-climb position at a corresponding anti-climb angle β relative to the composite fence panel 1210. The depicted anti-climb angle β is approximately 135 degrees; however, in other embodiments, the first and second attachment surfaces 1181A, 1182A may define a variety of additional anti-climb angle β values ranging between 0 degrees and 180 degrees, preferably between 30 degrees and 170 degrees, and more preferably between 90 degrees and 140 degrees. In various embodiments of the present invention, the rib member 1283 may be structured to stiffen the first coupling member 1281, the second coupling member 1282, and/or the jogged member 1284, and may also be structured to securely reinforce the position of the first and second coupling members 1281, 1282 relative to the jogged member 1284 as will be apparent to one of ordinary skill in the art.
Referring to the top view of the composite hinge system 1350 provided by
In the depicted embodiment, the first composite hinge bracket 1351 is disposed generally adjacent one end of the composite fence post 1320 and the second composite hinge bracket 1361 is disposed generally adjacent an opposite end of the composite fence post 1320. The depicted first and second hinge brackets 1351, 1361 are structured generally identically. In alternate embodiments, differing composite hinge brackets may be used. Further, more or fewer composite hinge brackets may be used to couple the pivot member 1355 to the composite fence post 1320. For example, in one embodiment, three composite hinge brackets may be used wherein a first composite hinge bracket is disposed generally adjacent a first end of the composite post, a second composite hinge bracket is disposed adjacent a second end of the composite post, and a third composite hinge bracket is disposed therebetween.
In another embodiment of the present invention, the composite fence panel 1310 defines a sleeve portion 1317 adapted to at least partially enclose the pivot member 1355 between opposed first and second composite hinge brackets 1351, 1361 as shown. In this regard, the sleeve portion 1317 is adapted to pivot about the pivot member 1317 as will be apparent to one of ordinary skill in the art. In one embodiment, the sleeve portion 1317 may be integrally formed into the composite fence panel 1310. In alternate embodiments, the sleeve portion 1317 may be coupled to the composite fence panel 1310 via one or more composite fasteners 1340 (not shown).
In one embodiment, the composite fence post 1520, the first composite fence panel 1510, the second composite fence panel 1511, and the first and second pivot members 1534, 1536 of the adjustable composite bracket assembly 1530 may each define alignable apertures for receiving one or more composite fasteners 1540 as shown. In this regard, the composite fence post 1520 may be coupled to the first composite fence panel 1510, the first pivot member 1534 may be coupled to the composite fence post 1520, and the second pivot member 1536 may be coupled to the second composite fence panel 1511 as shown. Other coupling configurations may be used without deviating from the inventive concepts herein described. For example, in one embodiment, the first and second pivot members 1534, 1536 may be coupled to the first and second composite fence panels 1510, 1511, respectively. In yet another embodiment, the first and second pivot members 1534, 1536 may include a lock structure such that they are lockable in one or more desired orientations relative to the body portion 1532. Thus, the first and second composite fence panels 1510, 1511 may be rigidly fixed in a desired joint orientation.
Collectively,
Composite fence systems according to the various embodiments of the present invention described above are non-conductive and, thus, are uniquely structured to enclose electrical stations, high-tension transformers, or other sources of electricity. The above described fence systems are corrosion resistant and may be formed having color extending through the entire thickness of the fence system without requiring painting. The above fence systems are strong, durable, and resist permanent deflection. Finally, the above fence systems can be formed completely of nonmetallic materials, and are substantially transparent to electromagnetic energy such as radio waves, microwaves, radar, radio frequency signals, and the like. In this regard, the present fence systems are well-suited for enclosing or shielding radar arrays, RF transmitting towers, airports, and other transmitters or receivers of electromagnetic energy.
Many modifications and other embodiments of the inventions set forth herein will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims
1. A composite fence system, comprising:
- a composite fence panel comprised of polymer-based materials, the composite fence panel forming a grid structure defining a plurality of apertures;
- a composite support post comprised of polymer-based materials, the composite support post defining a bore; and
- a composite plug comprised of polymer-based materials, the composite plug including a wedge portion, a threaded member extending from the wedge portion, and a composite nut structured to rotatably engage the threaded member thereby tightening the composite nut over the threaded member; and
- wherein the composite fence panel is coupled to the composite support post by seating the wedge portion of the composite plug into one of the apertures of the composite fence panel, positioning the composite support post adjacent the composite fence panel such that the threaded member of the composite plug extends through the bore defined in the composite support post, and tightening the composite nut over the threaded member of the composite plug.
2. The composite fence system of claim 1, wherein the polymer-based materials comprise fiberglass fibers.
3. The composite fence system of claim 1, wherein the composite support post defines an I-shaped cross-section.
4. The composite fence system of claim 1, wherein the composite support post defines a rectangular cross-section.
5. The composite fence system of claim 1, wherein the composite support post is generally cylindrically-shaped.
6. The composite fence system of claim 1, further comprising:
- an anti-climb fence panel comprised of polymer-based materials, the anti-climb fence panel including a first surface, a second surface, and at least one aperture defined between the first and second surfaces;
- an angled bracket defining a first contact surface and a second contract surface, wherein the first contact surface defines a first bore and the second contact surface defines a second bore;
- a second composite plug comprised of polymer-based materials, the second composite plug including a second wedge portion, a second threaded member extending from the second wedge portion, and a second composite nut structured to rotatably engage the second threaded member thereby tightening the second composite nut over the second threaded member; and
- a third composite plug comprised of polymer-based materials, the third composite plug including a third wedge portion, a third threaded member extending from the third wedge portion, and a third composite nut structured to rotatably engage the third threaded member thereby tightening the third composite nut over the third threaded member;
- wherein the anti-climb fence panel is coupled to the angled bracket by seating the second wedge portion of the second composite plug into the at least one aperture of the anti-climb fence panel, positioning the first contact surface of the angled bracket adjacent the anti-climb fence panel such that the second threaded member of the second composite plug extends through the bore defined in the first contact surface of the angled bracket, and tightening the second composite nut over the second threaded member of the second composite plug, and
- wherein the composite fence panel is coupled to the angled bracket by seating the third wedge portion of the third composite plug into one of the apertures of the composite fence panel, positioning the second contact surface of the angled bracket adjacent the composite fence panel such that the third threaded member of the third composite plug extends through the bore defined in the second contact surface of the angled bracket, and tightening the third composite nut over the third threaded member of the third composite plug.
7. A composite plug adapted for insertion into an aperture defined between first and second surfaces of a composite fence panel, the composite plug comprising:
- a wedge portion comprised of polymer-based materials, wherein the wedge portion is structured to be seated within the aperture defined between the first and second surfaces of the composite fence panel; and
- a threaded member comprised of polymer-based materials, wherein the threaded member is structured to extend from the wedge portion, through the aperture, a protruding distance beyond the second surface of the composite fence panel when the wedge portion of the composite plug is seated within the aperture of the composite fence panel.
8. The composite plug of claim 7, wherein the wedge portion and the threaded member of the composite plug are integrally formed.
9. The composite plug of claim 7, wherein the wedge portion and the threaded member of the composite plug are separately formed and adhered together.
10. The composite plug of claim 7, further comprising a composite bolt having a composite bolt head and a composite bolt body, wherein the wedge portion of the composite plug defines a bore structured to receive the composite bolt, and wherein the threaded member is a protruding portion of the composite bolt body that extends from the wedge portion after the composite bolt has been seated into the bore defined by the wedge portion.
11. The composite plug of claim 8, wherein the wedge portion of the composite plug further defines a pocket proximate the bore for receiving the composite bolt head when the composite bolt has been seated into the bore.
12. The composite plug of claim 10, wherein the wedge portion of the composite plug further defines a pocket forming a locking surface proximate the bore, wherein the composite bolt head defines an engagement surface that is structured to engage the locking surface of the pocket, and wherein the engagement surface engages the locking surface to prevent rotation of the composite bolt when the composite bolt has been seated into the bore.
13. A composite plug-support member assembly for a fence system, comprising:
- a composite fence panel comprised of polymer-based materials, the composite fence panel including a first surface, a second surface, and at least one aperture defined between the first and second surfaces;
- a composite plug comprising a wedge portion and a threaded member extending from the wedge portion, wherein the wedge portion and the threaded member are comprised of polymer-based materials, wherein the wedge portion is structured to be seated within the at least one aperture defined between the first and second surfaces of the composite fence panel, and wherein the threaded member includes a protruding portion extending at least partially beyond the second surface of the composite fence panel when the wedge portion of the composite plug has been seated within the at least one aperture of the composite fence panel;
- a support member defining a bore, wherein the support member is structured for positioning adjacent the second surface of the composite panel such that the protruding portion of the threaded member may be received through the bore of the support member when the wedge portion of the composite plug has been received within the at least one aperture of the composite fence panel; and
- a composite nut structured to rotatably engage the protruding portion of the threaded member and thereby compress the second surface of the composite fence panel against the support member.
14. The composite plug-support member assembly of claim 13, wherein the support member is comprised of a fiber reinforced polymer.
15. The composite plug-support member assembly of claim 13, wherein the support member is a substantially planar stiffening plate.
16. The composite plug-support member assembly of claim 13, wherein the support member is a composite P-clamp structured for coupling the composite fence panel to a composite support post.
17. The composite plug-support member assembly of claim 13, wherein the support member is a composite C-clamp structured for coupling the composite fence panel to a composite support post.
18. The composite plug-support member assembly of claim 17, further comprising a substantially planar stiffening plate disposed at least partially between the second surface of the composite fence panel and the composite C-clamp.
19. The composite plug-support member assembly of claim 13, wherein the support member is a composite ring clamp structured for coupling the composite fence panel to a composite support post.
20. The composite plug-support member assembly of claim 13, wherein the support member is a composite support post structured to define an I-shaped cross-section.
21. The composite plug-support member assembly of claim 13, further comprising:
- a second composite fence panel comprised of polymer-based materials;
- wherein the support member is a composite support post and the second composite fence panel is coupled to the composite support post by an adjustable composite bracket.
22. The composite plug-support member assembly of claim 21, wherein the adjustable composite bracket is adapted to place the second composite fence panel in a desired joint orientation relative to the first composite fence panel.
23. A composite fence system, comprising:
- a composite fence panel comprised of polymer-based materials, the composite fence panel including a first surface, a second surface, a perimeter edge surface, and at least one aperture defined between the first and second surfaces;
- a composite support post comprised of polymer-based materials, the composite support post defining a bore; and
- a composite edge bracket comprising a retaining member, a coupling member defining a bore, and a support surface,
- wherein the composite fence panel is coupled to the composite support post by seating the perimeter edge of the composite fence panel against the support surface of the composite edge bracket such that the retaining member of the composite edge bracket is disposed proximate the first surface of the composite fence panel and the second surface of the composite fence panel is disposed adjacent the composite support post, positioning the composite support post adjacent the coupling member of the composite edge bracket such that the bore defined in the composite support post is alignable with the bore defined in the coupling member, and threading a composite fastener through the bore defined in the composite support post and the bore defined in the coupling member of the composite edge bracket to couple the composite edge bracket to the composite support post.
24. The composite fence system of claim 23, wherein the composite edge bracket defines a substantially s-shaped cross-section.
25. A composite fence system, comprising:
- a composite fence panel comprised of polymer-based materials, the composite fence panel including a first surface, a second surface, and at least one aperture defined between the first and second surfaces;
- a composite support post comprised of polymer-based materials, the composite support post defining a perimeter surface; and
- a composite bracket assembly comprising, a first portion having opposed ends and first and second bores defined proximate the opposed ends, and a second portion having opposed ends and first and second bores defined proximate the opposed ends, wherein at least one of the first and second portions of the composite bracket assembly define a substantially concave portion adapted to at least partially receive the perimeter surface of the composite support post; wherein the first and second bores of the first portion of the composite bracket assembly are alignable with the first and second bores of the second portion of the composite bracket assembly for receiving a composite fastener, wherein at least one of the first and second portions of the composite bracket assembly define a wedge portion proximate at least one of the first and second bores, and wherein the wedge portion is structured for slidable seating within the at least one aperture of the composite fence panel.
26. A composite fence system, comprising:
- a composite fence panel comprised of polymer-based materials;
- a composite support post comprised of polymer-based materials, wherein the composite fence panel is coupled to the composite support post by one or more composite fasteners;
- an anti-climb fence panel comprised of polymer-based materials;
- an angled bracket comprised of polymer-based materials, wherein the angled bracket is adapted to securely couple the anti-climb fence panel to the composite support post in an anti-climb assembly position, and wherein an anti-climb angle is defined between the anti-climb fence panel and the composite fence panel in the anti-climb assembly position.
27. The composite fence system of claim 26, wherein the composite support post defines one or more bores and the angled bracket defines one or more bores that are alignable with the one or more bores of the composite support post, and wherein the angled bracket is securely coupled to the composite support post by threading one or more composite fasteners through the one or more bores of the angled bracket and the one or more bores of the composite support post.
28. The composite fence system of claim 26, wherein the anti-climb angle is between 0 and 180 degrees.
29. The composite fence system of claim 26, wherein the anti-climb angle is between 30 and 170 degrees.
30. The composite fence system of claim 26, wherein the anti-climb angle is between 90 and 140 degrees.
31. The composite fence system of claim 26, wherein the anti-climb angle is approximately 135 degrees.
32. The composite fence system of claim 26, further comprising:
- a composite plug comprised of polymer materials, the composite plug including a wedge portion, a threaded member extending from the wedge portion, and a composite nut structured to rotatably engage the threaded member thereby tightening the composite nut over the threaded member,
- wherein the anti-climb fence panel includes a first surface, a second surface, and at least one aperture defined between the first and second surfaces, wherein the angled bracket defines a bore, and
- wherein the anti-climb fence panel is coupled to the angled bracket by seating the wedge portion of the composite plug into the at least one aperture of the anti-climb fence panel, positioning the angled bracket adjacent the anti-climb fence panel such that the threaded member of the composite plug extends through the bore defined in the angled bracket, and tightening the composite nut over the threaded member of the composite plug.
33. A composite fence system, comprising:
- a composite fence panel comprised of polymer-based materials;
- a composite support post comprised of polymer-based materials;
- a composite hinge system adapted to pivotally couple the composite fence panel to the composite support post, the composite hinge system comprising: a composite hinge bracket adapted to support a cylindrical pivot member, and a cylindrical sleeve portion adapted to at least partially enclose the cylindrical pivot member such that the cylindrical sleeve portion is rotatable about the cylindrical pivot member.
34. The composite fence system of claim 33, wherein the composite hinge bracket is coupled to the composite support post via one or more composite fasteners.
35. The composite fence system of claim 33, wherein the cylindrical sleeve portion is coupled to the composite fence panel and the composite hinge bracket is coupled to the composite support post via one or more composite fasteners.
36. The composite fence system of claim 33, wherein the composite hinge bracket is coupled to the composite fence panel via one or more composite fasteners.
37. The composite fence system of claim 33, wherein the cylindrical sleeve portion is coupled to the composite support post and the composite hinge bracket is coupled to the composite fence panel via one or more composite fasteners.
38. A method for manufacturing a composite fence system, the method comprising the steps of:
- forming a composite fence panel comprised of polymer-based materials, the composite fence panel having a grid structure defining a plurality of apertures;
- forming a composite support member comprised of polymer-based materials, the composite support member defining a bore; and
- forming a composite plug comprised of polymer materials, the composite plug having a wedge portion and a threaded member extending from the wedge portion;
- wherein the wedge portion of the composite plug in structured to be seated within at least one of the plurality of apertures of the composite fence panel, and wherein the composite support member is structured for positioning adjacent the composite fence panel when the composite plug is seated therein such that the threaded member of the composite plug extends through the bore defined in the composite support member.
39. A method for assembling a composite fence system, the method comprising the steps of:
- seating a wedge portion of a composite plug into one of a plurality of apertures defined in a composite fence panel, wherein the composite plug and composite fence panel are each comprised of polymer-based materials, and the composite plug includes a threaded member extending from the wedge portion through the one of the plurality of apertures;
- positioning a composite support member adjacent the composite fence panel such that the threaded member of the composite plug extends through a bore defined in the composite support member, wherein the composite support member is comprised of polymer materials; and
- tightening a composite nut comprised of polymer materials over the threaded member of the composite plug.
40. A composite post adapted for use in a composite fence system, the composite post comprising:
- a first structural member defining a first width;
- a third structural member defining a second width that is substantially smaller than the first width;
- a second transversely aligned structural member that is adapted to rigidly couple the first and third structural members in a substantially parallel orientation;
- wherein the first structural member defines a bore that is structured to receive a composite fastener.
Type: Application
Filed: Apr 3, 2006
Publication Date: Oct 12, 2006
Applicant:
Inventors: Larry Vise (Birmingham, AL), Fred Mayer (Birmingham, AL), Lynn Derouen (Lafayette, LA), Tom Outcault (Holmdel, NJ), Mark Ruiz (Youngsville, LA)
Application Number: 11/396,880
International Classification: E04H 17/14 (20060101);