Portable firing berm
A portable firing berm adapted to capture bullets fired at the berm. The portable berm has a frame forming an opening through which bullets fired at the berm enter the berm and a bullet containment portion communicating with the opening. The bullet containment portion has an integral impact section disposed so that unspent bullets received in the bullet containment portion impact against and are stopped by the impact section, and having an integral bullet containment section arranged to contain bullets and bullet fragments from the impact section. The bullet containment portion is movably mounted to the frame to move substantially as a unit relative to the opening from one position to another position.
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This application is a continuation in part of U.S. patent application Ser. No. 12/238,965 filed Sep. 26, 2008 and claims priority from U.S. Provisional Application Ser. No. 60/975,290, filed Sep. 26, 2007, all incorporated by reference herein in their entirety.
BACKGROUND1. Field
The disclosed embodiments relate to a firing berm, and more particularly, to a portable firing berm that acts as a bullet trap.
2. Description of Earlier Related Developments
Firing berms are used at shooting ranges as a backstop to capture fragments from cartridges fired at targets and to prevent excessive travel of fired bullets for safety purposes. Lead has become both a safety and environmental concern leading to the use of bullet traps instead of soil based berms. An example of such a trap is disclosed in U.S. Pat. No. 5,486,008 which is hereby incorporated by reference in its entirety. Here, the bullet trap has a spiral deceleration chamber with a lead collection vessel.
The foregoing aspects and other features of the exemplary embodiments are explained in the following description, taken in connection with the accompanying, drawings, wherein:
Referring to
Referring now to
Portable firing berm 10′ may have a funnel portion 16 adapted to funnel and deflect stray rounds into a dry tank portion 18. In alternate embodiments, a funnel portion may not be provided. Dry tank 18 is configured to define an opening through which the bullets enter the dry tank 18 and is configured to define a dry absorption region or section communicating with the opening. The dry absorption region of dry tank 18 has absorbing media fill 20 contained therein. In the exemplary embodiment, the absorbing, media 20 is adapted to absorb energy from the fired rounds, including AP rounds, and is further adapted to capture and contain the bullet fragments. The dry absorption region and absorbing media fill are arranged to absorb the bullets without the bullets or bullet fragments impacting structure of the dry tank. Here, the absorbing media 20 acts to absorb the energy of fired bullets and prevents rounds or fragments from coming in contact with tank portion 18. As such, portable berm 10 captures bullets and bullet fragments in medium 20 of berm 10 substantially eliminating inspection and/or replacement of discrete interior of the portable berm parts as the energy is absorbed by media 20. Thus, the entire unit 10 may operate substantially without continuous periodic or routine inspection or replacement parts after relatively small number of firings.
Ventilation portion 22 is provided and adapted to ventilate and filter air from within funnel portion 16 and dry tank portion 18. Rounds 12 are fired toward portable berm 10, generally in direction 14 and captured within the dry tank portion 18 and absorbing media 20. Funnel portion 16 is shown having four partitions 24, 26, 28 and 30 angled relative to the line of fire 14 such that rounds hitting funnel portion 16 are directed through opening 32 on the inner portion of funnel 16. Although funnel 16 and opening 32 are shown rectangular in shape, any suitable shape may be used. Funnel 16 is shown fabricated from steel plate where partitions 24, 26, 28, 30 are welded to each other. In alternate embodiments, any suitable material or fabrication technique may be used. In alternate embodiments, the funnel 10R structural similar to the funnel may be positioned within the dry tank. Extensions 34, 36 are provided on partitions 26, 30. Funnel 16 and tank 18 are shown generally in a square shape, however in alternate embodiments, any suitable shape may be provided. For example, the width may be scalable to a much larger width. Dry tank portion 18 is shown fabricated of welded and formed steel. In alternate embodiments, any suitable material or fabrication technique may be used.
Dry tank portion 18 has forward chamber 38 and rear chamber 40 (two chambers are shown in
Partitions 42, 44 are shown at an angle, for example, and 80 degree angle to prevent excessive pressure on partitions 42, 44 from aggregate 20. In alternate embodiments, any suitable angle could be provided. In alternate embodiments, the second partition may be impenetrable to rounds fired into berm 10 and impacting the second partition. For example, the second partition may be formed from plate steel or any other suitable material such as ceramics or composites of sufficient strength to stop impacting bullets/fragments. In alternate embodiments more or fewer partitions or walls (similar to partitions 42, 44) may be provided and defining more or fewer chambers that may be filled with the same or different media. In other alternate embodiments one or more of the chambers may hold no media.
Collection tray or cleanout box 50 may be provided in communication with forward chamber 38 to allow removal of fragments that may collect in forward chamber 38. Tray 50 may be stationary and fixed. In alternate embodiments, tray 50 may be removable, for example by sliding relative to tank 18. Absorbing media 20 is provided to absorb the energy of rounds fired at portable berm 10 and to capture fragments from the rounds. Absorbing media 20 may be crushed stone or gravel. In alternate embodiments, absorbing media 20 may be any suitable material that may be suitable to absorb the energy of rounds fired and capture fragments. Absorbing media 20 may comprise more than one media; either mixed or separated. In the event they are separated, second partition 44 (e.g. screen) may separate the different media, for example as noted before, where rear chamber 40 may be separated by partition 44 into chambers 46, 48 holding the different media. Here, front chamber 46 may contain a first berm adapted to absorb the initial energy and may be made up of a suitable material, such as iron oxide pellets and rear chamber 48 may contain a suitable material, such as gravel or crushed stone. In alternate embodiments, any suitable combination or mix of media may be used. In alternate embodiments, more or less partitions may be provided with more layers of berm.
Ventilation portion 22 is adapted to force ventilate and filter air from within the funnel portion or the dry tank portion. In alternate embodiments the ventilation portion may employ natural or convective ventilation. In the exemplary embodiment, ventilation portion 22 has an exhaust fan 52, fan plenum 54, HEPA filter portion 56, forward plenum 58 and left and right ducts 60, 62. Left and right ducts 60, 62 are in communication with forward chamber 38 through duct slots 64, 66 in the side partitions of forward chamber 38. In alternate embodiments ventilation ducts may be located in any desired position and more and fewer ducts may be used. In the embodiment shown, an air curtain 68 is formed at the opening 32 whereby air is ducted through the HEPA filter 56 and exhausted through fan 52 in direction 70. Forward plenum 58 may also be in communication with rear chamber 40 of dry tank portion 18 where air is ventilated through the media 20. Plenum 58 in combination with exhaust fan 52 provide negative pressure between the tank portion 18 and ambient surrounding the berm 10 forcing contaminated air through HEPA filter 56. Fan 52 may be suitably sized, for example, sized to provide 30 cubic feet per minute flow for a 4′×8′×4′ tank portion 18. In alternate embodiments, any suitable fan or duct configuration may be used.
In the exemplary embodiment, portable berm 10 has suitable lift or carry points, such as eyes 72, 74, 76, allowing for example a crane or other implement to lift berm 10 with a sling. Eyes 72, 74, 76, 78 are shown welded to chamber 18. In alternate embodiments, any suitable combination of features may be provided. Handles 80 are also provided, for example to allow fork lifting of berm 10. Supporting frames 82, 84 are also provided to support berm 10 and allow berm 10 to be pulled from one location to another. The berm 10 may have a transport system, such as wheels, or may be placed on a transport, so that the berm may be transported and repositioned at different locations as desired. Berm 10 is shown provided with a desired finish such as with camouflage paint. In alternate embodiments, any suitable finish may be used.
As noted before, the berm 10 is suitable for use singly (or in combination with other berms, as will be described further below) as a firing berm (to stop and absorb fired rounds) indoors, within the confines of a building or facility, or outdoors. As may be realized, the portable berm may be ported, substantially as a unit without disassembly and reassembly, to any desired location, indoors and outdoors in order to a firing berm at the location. Also, in the exemplary embodiment the portable berm 10 may be moved to and between any number of different locations so that the firing berm positioned at one location may be subsequently repositioned, substantially as a unit, at any other desired location. As noted above, the portable berm may be used singly, and in combination with other berms in order to define a berm having different selectably variable configurations. Referring now to
Referring now to
Referring again to
Berm 114 is movable as a unit without disassembly or re-assembly. Frame 140 has a base 176 that is shown as a flat plate and allows placement of berm 114 on any support structure with a flat seating surface. For example, structural sections 178, 180 such as an “I” or “C” may be provided or alternately, construction blocks or rail road ties may support berm 114 as shown. The base has front valance/mask plate 182 to protect from under rounds. Alternately, the gap between the lower plate and the top of the base may be closed with for example with sand bags. Ventilation portion 166 may be provided adapted to ventilate and filter air from within the bullet containment portion. Lifting points 168, 179 may also be provided coupled to the frame 140.
Thus, in accordance with one exemplary embodiment, a portable firing berm is provided. The portable firing berm is adapted to capture bullet fragments from rounds fired at the berm. The portable firing berm has a funnel portion and a dry tank portion connected to the funnel portion. The funnel portion is configured to funnel and deflect rounds into the dry tank portion. The dry tank portion has absorbing media fill therein, the absorbing media being arranged to capture and contain the bullet fragments.
In accordance with another exemplary embodiment, a portable firing berm for capturing bullet fragments from bullets fired at the berm is provided. The berm has a frame and a dry tank connected to the frame. The dry tank is configured to define an opening through which the bullets enter the dry tank. The dry tank is configured to define a dry bullet absorption section communicating with the opening. The dry bullet absorption section is arranged to absorb and stop bullets, fired at the berm and entering unspent through the opening into the dry bullet absorption section.
In accordance with another exemplary embodiment, a portable firing berm adapted to capture bullets fired at the berm is provided. The portable berm has a frame forming an opening through which bullets fired at the berm enter the berm and a bullet containment portion communicating with the opening. The bullet containment portion has an integral impact section disposed so that unspent bullets received in the bullet containment portion impact against and are stopped by the impact section, and having an integral bullet containment section arranged to contain bullets and bullet fragments from the impact section. The bullet containment portion is movably mounted to the frame to move substantially as a unit relative to the opening from one position to another position.
In accordance with another exemplary embodiment, a portable firing berm adapted to capture bullets fired at the berm is provided. The portable berm has a frame forming an opening through which bullets fired at the berm enter the berm, and a bullet containment portion communicating with the opening, the bullet containment portion having an integral impact section disposed so that unspent bullets received in the bullet containment portion impact against and are stopped by the impact section, and having an integral bullet containment section arranged to contain bullets and bullet fragments from the impact section. The impact portion is movably mounted to the frame to move relative to the frame from a position inside the frame to another position located at least partially outside of the frame.
In accordance with another exemplary embodiment, a portable firing berm adapted to capture bullets fired at the berm is provided. The portable berm has a frame forming an opening through which bullets fired at the berm enter the berm, and a first impact portion connected to the frame and disposed to deflect bullets entering the opening, and a bullet containment portion communicating with the opening, the bullet containment portion having an integral impact section disposed so that unspent bullets received in the bullet containment portion impact against and are stopped by the impact section, and having an integral bullet containment section arranged to contain bullets and bullet fragments from the impact section. The bullet containment portion is movably mounted to the frame to move substantially as a unit relative to the opening from one position to another position. The bullet containment portion is movable to a position where the containment section is accessed for contained bullets and bullet fragments.
It should be understood that the foregoing description is only illustrative of the invention. Various alternatives and modifications can be devised by those skilled in the art without departing from the invention. Accordingly, the present invention is intended to embrace all such alternatives, modifications and variances.
Claims
1. A portable firing berm adapted to capture bullets fired at the berm, the portable berm comprising:
- a frame forming an opening through which bullets fired at the berm enter the berm; and
- a bullet containment portion communicating with the opening, the bullet containment portion having an integral impact section disposed so that unspent bullets received in the bullet containment portion impact against and are stopped by the impact section, and having an integral bullet containment section arranged to contain bullets and bullet fragments from the impact section;
- wherein, the bullet containment portion is movably mounted to the frame to move substantially as a unit relative to the opening from one position to another position.
2. The portable firing berm of claim 1 further comprising an impact portion connected to the frame and disposed to deflect bullets entering the opening into the containment portion; and
- wherein the bullet containment portion is dry and utilizes an absorbing media fill arranged to absorb and contain the bullets and bullet fragments.
3. The portable firing berm of claim 1 wherein the berm is movable as a unit without disassembly or re-assembly.
4. A modular firing berm comprising a number of firing berm modules, wherein the portable firing berm of claim forms at least one of the firing berm modules, and wherein each berm module has one or more open sides.
5. A modular firing berm comprising a number of firing berm modules, wherein the portable firing berm of claim forms at least one of the firing berm modules, and wherein each berm module has one or more open sides, and wherein outermost berm modules have one open side, and wherein intermediate berm modules have two open sides.
6. The portable firing berm of claim 1 further comprising a ventilation portion adapted to ventilate and filter air from within the bullet containment portion.
7. The portable firing berm of claim 1 further comprising lifting points coupled to the frame.
8. A portable firing berm adapted to capture bullets fired at the berm, the portable berm comprising:
- a frame forming an opening through which bullets fired at the berm enter the berm;
- a bullet containment portion communicating with the opening, the bullet containment portion having an integral impact section disposed so that unspent bullets received in the bullet containment portion impact against and are stopped by the impact section, and having an integral bullet containment section arranged to contain bullets and bullet fragments from the impact section;
- wherein the impact section is movably mounted to the frame to move relative to the frame from a position inside the frame to another position located at least partially outside the frame.
9. The portable firing berm of claim 8, further comprising a first impact portion connected to the frame and disposed to deflect bullets entering the opening into the containment portion;
- a second impact portion connected to the frame and arranged below the first impact portion; and
- wherein, the second impact portion is arranged to provide another containment portion, and wherein the second impact portion communicates with the bullet containment portion such that bullets and bullet fragments captured by the second'impact portion may be swept into the bullet containment portion.
10. The portable firing berm of claim 8 wherein the bullet containment portion is dry and utilizes an absorbing media fill arranged to absorb and contain the bullets and bullet fragments.
11. The portable firing berm of claim 8 wherein the berm is movable as a unit without disassembly or re-assembly.
12. A modular firing berm comprising a number of firing berm modules, wherein the portable firing berm of claim forms at least one of the firing berm modules, and wherein each berm module has one or more open sides.
13. The portable firing berm of claim 8 further comprising a ventilation portion adapted to ventilate and filter air from within the bullet containment portion.
14. The portable firing berm of claim 8 further comprising lifting points coupled to the frame.
15. A portable firing berm adapted to capture bullets fired at the berm, the portable berm comprising:
- a frame forming an opening through which bullets fired at the berm enter the berm;
- a first impact portion connected to the frame and disposed to deflect bullets entering the opening; and
- a bullet containment portion communicating with the opening, the bullet containment portion having an integral impact section disposed so that unspent bullets received in the bullet containment portion impact against and are stopped by the impact section, and having an integral bullet containment section arranged to contain bullets and bullet fragments from the impact section;
- wherein, the bullet containment portion is movably mounted to the frame to move substantially as a unit relative to the opening from one position to another position, and wherein the bullet containment portion is movable to a position where the containment section is accessed for contained bullets and bullet fragments.
16. The portable firing berm of claim 15 wherein the bullet containment portion is dry and utilizes an absorbing media fill arranged to absorb and contain the bullets and bullet fragments.
17. The portable firing berm of claim 15 wherein the berm is movable as a unit without disassembly or re-assembly.
18. A modular firing berm comprising a number of firing berm modules, wherein the portable firing berm of claim forms at least one of the firing berm modules, and wherein each berm module has one or more open sides.
19. The portable firing berm of claim 15 further comprising a ventilation portion adapted to ventilate and filter air from within the bullet containment portion.
20. The portable firing berm of claim 15 further comprising lifting points coupled to the frame.
Type: Application
Filed: Jun 10, 2010
Publication Date: Dec 30, 2010
Applicant: Colt Defense LLC (Hartford, CT)
Inventors: Frank Bavaro (Plantsville, CT), Scott Bavaro (Plantsville, CT)
Application Number: 12/802,643
International Classification: F41J 13/00 (20090101);