This invention relates generally to a security fence that can be deployed rapidly to provide a barrier between geographical spaces and to provide ballistic security by incorporating ballistic materials within the security fence structure, as well as to provide a resistance to impact from large objects, such as vehicles.
Ballistic barriers have been designed and provided to resist and/or prevent the passage of bullets fired at the barrier. Such ballistic barriers have been used at indoor shooting ranges, as security fences for residences and commercial property and other establishments, and as shields for individuals advancing under fire. Ballistic barriers are typically formed of bullet resistant metal and are heavy and difficult to use because of their weight. As security fence structures, the weight of the panels are difficult to install and to maintain.
In U.S. Pat. No. 1,899,735, granted on Jan. 22, 1632, to O. B. McClintock, a security barrier for bank tellers is disclosed in which the barrier is formed from a metal shell supporting bullet resistant glass and a complex structure to provide protection for a bank teller. A modular security fence is disclosed in U.S. Pat. No. 5,429,340, granted on Jul. 4, 1695, to Anthony M. Young, et al, in which the security fence is formed from overlapping panel modules. Each module is formed as an irregularly shaped open shell that interlocks with one or more adjoining modules or shells. Ballistic resistance is a result of opposing outer walls of the open shells when assembled together.
A ballistic barrier is disclosed in U.S. Pat. No. 8,001,880, granted to William C. White, et. al., on Aug. 23, 2011, wherein a lower barrier supports attack resistant panes extending upwardly from the barrier. The lower barrier provides protection from vehicle crashes, while the upper attack resistant panes are formed from material, such as plastic, acrylic and polycarbonates, among others, to resist penetration by bullets, particularly rounds fired by handguns. The ballistic wall structures disclosed in U.S. Patent Publication No. 2015/0354926, published on Dec. 10, 2015, by MGM Holdings, LLC, are designed for use in shooting ranges. The intent of this ballistic wall structure is to retain bullets within the wall structure. A ballistic curtain formed of ballistic rubber allows the passage of a bullet, while slowing the speed of the bullet so that the inner plate 54 stops the penetration of the bullet. The rubber curtain also prevents ricochets and fragments from passing back through the curtain.
Another ballistic barrier is disclosed in U.S. Pat. No. 10,012,479, granted to Michael Boviall on Jul. 3, 2018. This ballistic barrier is formed by a wall incorporating louvers or slats angled and overlapping to provide resistance to the passage of bullets by deflecting the path of the bullets downwardly to the ground. IN an alternative embodiment, the angled slats are backed by a backer plate that serves to further deflect the path of the bullets. A ballistic barrier designed to be portable in discrete panels and assembled in a selected location is disclosed in U.S. Pat. No. 10,281,245, granted on May 7, 2016, to Michael J. DeKort. Each panel can be connected to adjoining panels by hinges, and can, thereby, be folded for portability. Each panel is formed with a single pane of solid metal to provide bullet resistance.
It would be desirable to provide a bullet resistant fence structure that can be assembled and deployed rapidly and easily and also be effective to resist the passage of bullets therethrough up to a predetermined caliber of weapon.
It would also be desirable to provide a bullet resistant fence structure that can also resist the impact from a motor vehicle.
It is an object of this invention to overcome the disadvantages of the prior art by providing a crash resistant security fence that provides an aesthetically pleasing appearance.
It is another object of this invention to provide a bullet resistance security fence that is configured to be deployed quickly at locations not having a security fence installation.
It is a feature of this invention that the security fence is configured as a plurality of modular panels that can be detachably secured to adjacent modular panels.
It is another feature of this invention that the modular panels can be positioned between vertical support posts to enable rapid deployment.
It is still another feature of this invention that a securement device corresponds to each support post having a modular panel on opposing sides thereof to engage the modular panel on each opposing side thereof.
It is an advantage of this invention that the securement device corresponding to each intermediate support post is operable to pull the opposing modular panels toward the corresponding intermediate support post.
It is another advantage of this invention that the support posts have an H-shaped cross-section to receive the modular panels into opposing sides thereof.
It is yet another feature of this invention that each of the support posts are provided with a stabilizing apparatus to maintain the support post in a vertical orientation as the security fence is being deployed.
It is still another advantage of this invention that the stabilizing apparatus can be formed with a pair of adjustable length telescopic legs pivotally connected to opposing sides of said support post.
It is yet another advantage of this invention that each telescopic leg includes a stabilizing arm pivotally attached to the corresponding side of said support post.
It is a further feature of this invention that the telescopic legs permit positioning of the stabilizing apparatus to engage an adjacent supporting surface at different respective heights relative to the corresponding support post.
It is another object of this invention to provide a method of rapidly deploying a bullet resistant security fence to provide a temporary and removable security fence in situations and locations where a permanent bullet resistant security fence is not desired or has not yet been installed.
It is still a further feature of this invention that the method of rapidly deploying a bullet resistant security fence includes the step of positioning a plurality of support posts, including end posts and intermediate support posts positioned between the end posts along a desired path with adjacent support posts being spaced apart a predetermined distance.
It is yet a further feature of this invention that the method of rapidly deploying a bullet resistant security fence also includes the step of inserting extruded metal panel members between adjacent the support posts in a vertical stack to a predetermined height with each panel member having spaced front and rear walls forming an interior cavity therebetween and being configured with a tongue and groove configuration so that adjacent vertical panels are interlocked within the vertical stack of panels.
It is another feature of this invention that the method of rapidly deploying a bullet resistant security fence also includes the step of engaging a securement apparatus connected to selected panels on opposing sides of each intermediate support post to pull the panels on opposing sides of the corresponding intermediate support post toward the intermediate support post.
It is a further advantage of this invention that the engagement of the securement apparatus integrates the panels of the security fence to improve stability thereof.
It is still another feature of this invention that the method of rapidly deploying a bullet resistant security fence further includes the step of positioning a stabilizing apparatus on opposing sides of each support post into engagement with support surfaces to maintain the support posts in a vertical orientation during and after deployment of the panels into engagement with the support posts.
It is still a further advantage of this invention that the method of rapidly deploying a bullet resistant security fence includes the step of adjusting the length of the telescopic leg forming a part of each stabilizing apparatus so that the stabilizing apparatus can engage the ground outboard of the corresponding said support post.
It is still another object of this invention to provide a security fence structure and a method of deployment that enables the bullet resistant security fence to be erected rapidly and be effective to provide security temporarily to people and property inside the erected security fence.
It is yet another object to provide a rapidly deployable security fence that incorporates structure to resist people from scaling the security fence.
It is another feature of this invention that a saw tooth device is mounted on the top edge of each security fence panel to deter people from climbing over the top of the fence panel.
It is still another feature of this invention that a formed deflector can be mounted on top of each security fence panel to deter people from scaling the fence panel.
These and other objects, features and advantages are accomplished according to the instant invention by providing a rapidly deployable portable security fence having individual panels formed with bullet resistant material sandwiched in the middle of the panel structure between sheets of aluminum. Each panel has saw tooth blades and a formed deflector panel mounted at the top thereof to deter people from scaling and climbing over the security fence. The structure of the fence and method of deploying the fence results in a rapid deployment to provide a temporary and removable security fence in situations and locations where a permanent bullet resistant security fence is not desired or has not yet been installed. The panels are supported by H-beam support posts receiving the panels at the opposing edges thereof. The fence is maintained in a vertical orientation by stabilizers on opposing sides thereof, such as telescopic legs. A securement apparatus pulls the panels toward the support past to integrate the panels and the support posts together.
The advantages of this invention will become apparent upon consideration of the following detailed disclosure of the invention, especially when taken in conjunction with the accompanying drawings wherein:
Referring to the drawings, several embodiments of a bullet resistant, portable and rapidly deployable security fence incorporating the principles of the instant invention can be seen. In general, the security fence 10 is formed from a plurality of vertically oriented panels 15 formed in a manner to provide bullet resistant capabilities, which can have different configurations and material having a required material thickness to prevent the passage of a desired caliber of weapon. The panels 15 are preferably formed from sheets of 6061 or 6063 aluminum to define spaced apart front and rear shells 17, 18 of the panel 15 and an interior core 15a within the panel 15 into which the sheet of ballistic material is positioned to provide an economical and operatively effective panel 15. The thickness of the front and rear shells 17, 18 and the interior ballistic core 15a is a function of the level of bullet resistance that is desired. Preferably, this ballistic material is a suitable sheet of pressed ballistic material.
The security fence 10 also includes a plurality of support posts 12 each of which are positioned between adjacent panels 15 to provide support and keep the panels vertical. Preferably, the support posts 12 are positioned about ten feet apart so that the length of the individual panels 15 is slightly less than ten feet long, as the panels 15 extend horizontally between the central webs of the H-beam support posts 14. Instead of permanently mounted support posts as would be preferable in a fixed security fence structure, these support posts 12 are formed as an upright H-beam or I-beam with the fence panels 15 being received between adjacent support I-beams in the manner described above. The preferred support structure 20 also includes an elongated base 21 that is connected to the bottom of the I-beam and opposing webs 22 that project upwardly from the base 21 to the sides of the I-beam to provide stability in this standard support structure 20.
To further establish stability for the temporary security fence 10, the selected central fence panels 15 on opposing sides of a support structure 20 are connected together with securement devices 16, best seen in
Referring now to
The adjustable support structure 25 is particularly adapted for use in deploying the bullet resistant fence 10 quickly in urban settings. The adjustable length legs 57 can be positioned to accommodate steps, curbs and other uneven underlying bases. The support structures 20, 25 can be maneuvered into position to form a temporary bullet resistant security fence 10 manually by using a dolly and roller system or via a specialized mechanism that can hoist the panels via a mobile crane or lift system. Such a rapidly deployable bullet resistant security fence 10 can offer modular semi-permanent fencing for diplomatic safe havens, military bases and commercial establishments to provide safety from firearms in hostile areas.
As is depicted in
Referring now to
As shown in
For placement along the upper edge of the panel 15, an anti-scaling device can include a saw-tooth strip 44 which can be welded to the upper edge of the panel 15. One form of a saw-tooth strip 44 that can be used is an agricultural cutter bar formed from an elongated steel bar having sharp triangular teeth affixed to the bar, preferably by welding, in a linear manner and then secured to the upper edge of the panel 15. Also, each panel 15 can include a formed deflector 45 that can deter people from climbing over the top of the panel 15. The deflector 45 can be secured by bolts 46 that pass through mounting tabs 47 affixed to the upper edge of the panel 15, and also through the saw-tooth strip 44. As is best seen in
One skilled in the art will recognize that the portable, rapidly deployable security fence 10 can be constructed according to any of the configurations defined above, and can include fixed or adjustable support structure 12, 20, securement devices 16, anti-scaling devices 44, 45, as desired. The preferred security fence structure 10 would include an aluminum front and rear shells 17, 18 with a sheet of pressed ballistic material forming a ballistic core 15a between the front and rear shells 17, 18 secured along the upper, lower and side edges by an aluminum extrusion 50. The thickness of the front and rear shells 17, 18 and the number of layers of ballistic material formed into the pressed ballistic material forming the ballistic core 15a will be selected to conform to the desired level of ballistic protection to be provided in the security fence 10.
Referring now to
In
The use of multiple cables passing along the rear of the support posts 72 are various heights establishes a substantial amount of crash protection for the security fence 10, in addition to being resistant to the passage of bullets as is described in greater detail above, even though the security fence structure 10 was deployed rapidly and is portable to the place of installation. The support post 72 also includes a connection bracket 76 within the array of cable mounts 75 for the attachment of the fixed length arms 28 on opposing sides of the support post 72 which connect to the variable length legs 57 forming a part of the adjustable support structure 25 described above in greater detail with respect to
It will be understood that changes in the details, materials, steps and arrangements of parts which have been described and illustrated to explain the nature of the invention will occur to and may be made by those skilled in the art upon a reading of this disclosure within the principles and scope of the invention. The foregoing description illustrates the preferred embodiment of the invention; however, concepts, as based upon the description, may be employed in other embodiments without departing from the scope of the invention.
In the way of examples, the panels could be formed by a plurality of horizontally extending panel strips that are arranged in a vertical manner to form the completed panel 15. Such horizontally extending panel strips would be stacked between the adjacent support posts 15 and would preferably have interlocking structures that maintain ballistic integrity, similar to that disclosed in U.S. Pat. No. 11,747,114, granted on Sep. 5, 2023, the content of which is incorporated herein by reference. Such horizontally extending panel strips can be captured by the extrusions 50 along the upper and lower edges of the panel 15. Furthermore, a cable can be extended through selected panel strips to establish a measure of vehicle crash protection.
This application is a continuation-in-part of U.S. patent application Ser. No. 17/833,349, filed on Jun. 6, 2022, which claims domestic priority on U.S. Provisional Patent Application Ser. No. 63/167,725, filed on Jun. 7, 2021, the contents of which are incorporated herein by reference.
Number | Date | Country | |
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63197725 | Jun 2021 | US |
Number | Date | Country | |
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Parent | 17833349 | Jun 2022 | US |
Child | 18417987 | US |