1. The Field of the Invention
The present invention relates to a device and method for decelerating projectiles. More specifically, the present invention relates to an improved clearing trap for decelerating projectiles discharged when performing a clearing check to ensure that the gun is empty.
2. State of the Art
In order to maintain proficiency in the use of firearms, it is common for law enforcement officers and sportsmen to engage in target practice. Participants will typically shoot at targets which are placed in front of some type of bullet containment system. After passing through the target, the bullet is typically contained in a trap where the bullet may be retrieved and recycled. Such traps include total containment systems wherein the bullet is received in a chamber, and less expensive berm traps in which the bullet is received by a bullet deceleration material.
A variety of devices to prevent accidental firing of a firearm, such as safety locks, are built into or used with handguns and rifles. Despite such safety features, accidental discharges do occur, most frequently during the loading or unloading of the firearm. While it is easy to remove a magazine or other container holding the bullets, it may be difficult to accurately determine if a bullet is contained in the chamber of the gun. Nevertheless, after a target shooter is finished it is usually a requirement that the weapon be unloaded for transportation and/or storage.
To prevent accidental discharges from occurring, it is common for the target shooter to use a clearing trap. A clearing trap is typically a small trap disposed near the main target range into which a gun is inserted and the trigger pulled. If the gun has been properly emptied, there will be no discharge and the user will be assured that the gun is empty. However, occasionally the gun will fire due to a round that was not properly removed from the chamber. Once the round is discharged, the user may pull the trigger again for assurance that the gun is empty. Once it is demonstrated that the gun is empty, the user may store or transport the gun.
Likewise, there are situations in which it is desirable to clear a weapon away from a traditional range setting. For example, police officers may use special weapons during certain types of situations, such a bank robberies or hostage situations. Because the weapons are not used on a regular basis, it is usually desirable to ensure that the weapon is not loaded when stored. Thus, for example, while an officer would typically not clear his or her service pistol, he or she may desire to clear a semi-automatic rifle when not in use.
Although clearing traps are currently available for this purpose, each has various limitations. For example,
The configuration shown has several disadvantages. For example, the housing 14 must be made either of specially formed steel plate (i.e. steel having a thickness of 0.25 inches), or of standard steel or some other material. Forming the steel plate into the cylindrical housing 14 can be expensive, and using standard steel raises the risk that the housing will become damaged if a user fires the gun at an angle significantly deviating from the long axis of the housing. Additionally, the sand in the housing 14 is heavy and inverting the housing for clearing can require significant effort.
Turning now to
Turning to
The trap shown in
Thus, there is a need for an improved clearing trap and method for bullet deceleration which provides the advantages of prior art clearing traps without some or all of the disadvantages of the currently available systems. Such a system may be advantageous by stopping a wide variety of rounds in a compact space, and may be lightweight, relatively inexpensive and easy to use.
It is an object of the present invention to provide an improved clearing trap.
According to one aspect of the present invention, the clearing trap may be formed from a hardened steel housing and bullet deceleration material disposed within the housing. The hardened steel housing and the deceleration material allow a bullet to be safely contained in the housing in an improved manner over the prior art.
According to another aspect of the invention, the housing may be attached together with a plurality of welds in such a manner that none of the welds are directly exposed to a bullet fired into the clearing trap.
In accordance with another aspect of the invention, the bullet deceleration material uses pieces of rubber (or the like) and sheets of steel (which may include hardened steel) to decelerate the bullet and enables bullets to be contained in a smaller clearing trap for the size of the projectile than generally available.
According to another aspect of the present invention, the clearing trap may include one or more flanges extending from the housing with at least a portion of the flange being at an angle relative to the adjacent wall of the housing and adjacent a vent to shield the shooter or others nearby from vented gasses escaping from the housing. In a presently preferred embodiment, the flange(s) may be bent to form an angle greater than 90° relative to the adjacent wall of the housing and more preferably is generally L-shaped so that the flange channels gas escaping from the housing away from the shooter and generally parallel to the path of travel of a projectile discharged from a gun into the housing.
These and other aspects of the present invention may be realized in an improved clearing trap as shown and described in the following figures and related description.
Various embodiments of the present invention are shown and described in reference to the numbered drawings wherein:
It will be appreciated that the drawings are illustrative and not limiting of the scope of the invention which is defined by the appended claims. The embodiments shown accomplish various aspects and objects of the invention. It is appreciated that it is not possible to clearly show each element and aspect of the invention in a single figure, and as such, multiple figures are presented to separately illustrate the various details of the invention in greater clarity. Similarly, not every embodiment need accomplish all advantages of the present invention.
The invention and accompanying drawings will now be discussed in reference to the numerals provided therein so as to enable one skilled in the art to practice the present invention. The drawings and descriptions are exemplary of various aspects of the invention and are not intended to narrow the scope of the appended claims.
Turning now to
The housing 120 may have a cavity defined by an outer wall and can be preformed in a desired shape, typically a square cross-section defined by two sidewalls 124 (only one of which is shown in
One or more flanges 170 or other end pieces may be positioned adjacent the top of the housing 120 and may extend outwardly. Typically, the flange 170 may extend completely around the opening at the proximal end of the housing 120, though this is not required.
A containment shield 130 can be removably connected to the flange 170 to cover the open end of the housing 120. The containment shield 130 may have an opening for receiving the gun 220. The containment shield 130 may be made of a flexible material, such as rubber or LINATEX, available from Durex Products, Inc., Windfall, Ind. As is shown in
The housing 120 may include a base portion 124A, which may be formed by a portion of the sidewalls 124. As shown in
As shown, bolts 181 may be used to mount clearing trap 110 to a surface 132, however, it will be appreciated that clearing trap 110 may be mounted to the surface 132 using a variety of other methods. Ordinary persons skilled in the art will also appreciate that housing 120 need not be preformed to include base 124A. Rather, housing 120 may be mounted to a variety of structures.
The flange 170 may include extensions or attachments which form diverters 160 which have a bend 162 so that the diverters 160 extend 90° or less relative to upper wall 121, sidewalls 124 and/or lower wall 22 adjacent to which they are disposed. Preferably, the diverters extend generally parallel to the walls to which they are adjacent, although other angles are satisfactory. Additionally and/or alternatively, diverters 164 may extend from the mounting plate 140 so as to extend adjacent to sidewalls 124, top wall 121 or bottom wall 122.
Disposed in one or more of the sidewalls 124, the top wall 121 and the bottom wall 122, is one or more vents 210 (shown in more detail in
In accordance with one aspect of the present invention, the diverters 160, 164 ultimately extend from the housing and channel the vented gasses back along paths generally parallel to the path of travel of the bullet. Thus, the gasses are directed away from the shooter and those who may be standing adjacent the shooter when the gun discharges. This prevents the shooter and others from being hit by the vented gasses and any debris or particles that the vented gasses may carry.
Turning now to
In accordance with the principles of the present invention, it has been found that it is preferred to have the final piece of metal be hardened steel that is at least between about ⅜ and ¼ of an inch thick, although thinner or thicker pieces can be used. Additionally, it has been found that it is preferable, though not required, to have at least one piece of rubber 202a disposed distally to the last piece of hardened steel 204a. As the bullet, or fragments thereof, hit the last piece of steel 204a, the rubber 202a compresses, making it harder to penetrate steel as the steel deflects in response to the impact.
The combination of hardened steel plates 204 and rubber 202 has achieved remarkable results. A housing 120 approximately 10 inches long was provided with three pieces of hardened steel interspaced between the rubber pieces, with total deceleration medium slightly less than 7 inches. A 50 caliber armor-piercing round was fired into the clearing trap 110 and was safely contained therein. Containing such a round is generally challenging even in a larger clearing trap.
While the trap can be configured to stop such a high powered round, It can also use fewer or thinner pieces of rubber 202a-f and metal 204a-b to stop smaller rounds if desired. For example, a small caliber handgun range may use thin pieces (¼-⅜ of an inch) and some soft steel, while a range which allows higher caliber weapons may use thicker (⅜-1 inch) and/or more pieces, including hardened steel, to safely contain a broader range of bullets.
Now turning to
To ensure that clearing trap 110 remains effective at decelerating bullets, the containment shield 130 and the mounting plate 140 can be removed to access the interior of housing 120. After several bullets have been discharged into the clearing trap 110 (or a single round in case of a high powered round such as an armor piercing 50 caliber round), the bullet deceleration material can become less effective at decelerating a bullet. However, the bullet deceleration material can be easily replaced in order to ensure the proper function of clearing trap 110. This is accomplished by simply detaching the mounting plate 140 and either detaching or bending the containment shield 130 out of the way and sliding out the metal and rubber pieces which form the deceleration material. New pieces of metal and rubber (or already present pieces of metal or rubber which are still in good shape) may then be placed into the housing 120 and the containment shield 130 and mounting plate 140 returned to the position shown in
Additionally, the clearing trap 110 may be advantageous because it is relatively light weight. Unlike traps using sand as a deceleration material, the clearing trap 110 can be easily lifted and inverted so the deceleration materials slide out. Additionally, the light weight of the trap allows it to be used in a large number of situations, including truck or car mounted applications for police officers and the like.
Welding hardened steel is problematic because the weld can weaken the steel. However, in accordance with one aspect of the present invention, the weld itself is never exposed to a bullet entering the housing and the weld reinforces the portion of the hardened steel which has been heated during the welding process. (While
Now turning to
The vent hole 210 can be seen adjacent to the flange 170 in the lower wall 122. When a firearm is discharged inside the housing 120, the vent hole 210 facilitates release of the pressure generated by gasses passing from the firearm into the housing 120. An additional vent hole (not pictured) may be located adjacent to the flange 170 of upper wall 121 and/or vent holes 210 can be formed in the sidewalls 124.
Air flow and debris generated from the discharge of a firearm into the housing 120 and dissipated through vent holes 210, is safely directed away from the shooter by diverters 160 which may extend from upper and lower portions of the flange 170, and/or from the mounting plate 140 (not shown in
Turning now to
The back wall 123 may also be attached to an overhang along each of the sidewalls 124 so that welds 146 are attached to the back of the back wall 123 and the inside of the overhanging portion of the sidewalls 124. It will be appreciated that the attachment could be reversed with the outside of the sidewalls 124 being attached to an overhanging portion of the back wall 123. Either way, the welds 145, 146 are not directly exposed to bullets fired into the housing 120.
A higher velocity round, such as a .223 may penetrate the rubber 202 and the first piece of metal 204 only to be stopped by subsequent pieces of rubber or metal. Still other rounds, such as a 50 caliber armor piercing round may penetrate through all of the pieces of rubber and the metal up to the last metal piece, wherein it is stopped. If the round were to somehow pierce the last piece of metal, it would still have to pass through the last piece of rubber and then the backwall 123 of the housing 120.
By selecting the type of metal and the rubber used, a user of the clearing trap 110 may obtain the deceleration characteristics he or she desires. For example, with some high caliber rounds, it may be advantageous to have the bullet first impact a piece of soft (non-hardened) steel. The bullet will pierce the steel, but will lose a substantial amount of inertia in doing so. This reduces the risk of a ricochet while the bullet is still traveling at a high rate of speed. At the second piece of metal, a hardened steel piece of steel may be used. At this point a lower velocity bullet will tend to fragment against the steel and either be finally dissipated by the rubber or by the housing 120, while a higher velocity bullet may pierce the first hardened steel piece and then be fragmented by the second piece of hardened steel. By selecting the combination of rubber and soft and hardened steel, a person who runs a range or who is otherwise charged with clearing firearms can ensure that a desired deceleration pattern is obtained for the projectiles. Some bullets may even be captured substantially whole for recycling, while others are fragmented to reduce the mass which must be stopped.
It will be appreciated that the housing 120A shown in
It will be appreciated that various combinations of the aspects discussed above may be used consistent with the present invention. For example, a firearm clearing trap may include a housing having a cavity defined by an outer wall and at least one open end, the outer wall being formed by hardened steel; and a plurality of layers of bullet deceleration material, comprising at least one rubber layer and at least one metal layer. The clearing trap may also include: a) at least one rubber layer comprising a plurality of rubber layers disposed on opposing sides of the at least one metal layer; b) the at least one rubber layer comprising a plurality of rubber layers having different densities; c) the at least one rubber layer comprises a plurality of rubber layers and wherein the at least one metal layer comprises a plurality of metal layers; d) the plurality of metal layers being comprised of at least one layer of hardened steel; e) the plurality of metal layers comprising at least one layer of soft steel and at least one layer of hardened steel; f) at least one flange, a containment shield and a mounting plate for holding the containment shield to the at least one flange; g) at least one flange disposed adjacent a proximal end of the housing and at least one diverter extending from the flange and toward a distal end of the housing; h) at least one vent hole and wherein the diverter extends at least partially over the at least one vent hole; i) plurality of vent holes wherein a plurality of diverters extend from the at least one flange generally parallel to the housing to direct gasses passing out of the plurality of vent holes toward the distal end of the housing; j) a mounting plate attachable to the flange and wherein the mounting plate comprises at least one diverter positioned so as to at least partially extend over a vent hole in the housing; k) one vent hole is located in the housing substantially adjacent to a flange and the diverter extending along the housing to direct gasses passing out of the vent hole toward a distal end of the housing; and/or l) a retention insert for limiting movement of the deceleration material, or combinations thereof
A method of forming a clearing trap may include selecting a housing having a cavity defined by an outer wall and at least one open end configured to receive a plurality of layers of bullet deceleration material, the housing being formed from hardened steel and disposing a plurality of layers of bullet deceleration material into the housing, at least one of the plurality of layers being metal and at least two of the plurality of layers being rubber material. The method may also include: a) selecting a plurality of rubber layers having different densities; b) at least one of the plurality of layers being metal which is hardened steel; c) at least one of the plurality of layers being metal being soft steel; d) selecting a housing with at least one vent hole; e) selecting a housing with a flange and a mounting plate attached thereto and at least one diverter extending from at least one of the flange and the mounting plate to cover the at least one vent hole and direct gas escaping from the at least one vent hole away from the flange and the mounting plate; and/or f) disposing a retention mechanism in the housing to limit movement of the deceleration material, or combinations thereof.
A clearing trap of the present invention may include a housing having an inside, an outside and an opening for receiving a firearm, and having a top wall, a bottom wall, a pair of sidewalls and a back wall, and wherein the back wall and the top wall abut one another so as to leave an overhang formed by a portion of the top wall or the back wall on the outside of the housing and a weld between an inner surface of the overhang and an outer surface of the back wall or top wall so as to form a weld on the outside of the housing which joins the top wall and back wall; and a bullet deceleration material.
The clearing trap may also include: a) a back wall which abuts the sidewalls and the bottom wall so as to leave overhangs and wherein the back wall is attached to the bottom wall and the sidewalls walls by one or more welds extending along the back wall and the bottom wall and sidewalls of the housing; b) an outer surface of the back wall is welded to overhangs formed by the sidewalls, the top wall and the bottom wall; c) sidewalls extending beyond the top wall and the bottom wall so as to form overhangs and wherein outer surfaces of the bottom wall and top wall are welded to the overhangs of the sidewalls; d) the sidewalls extending beyond the bottom wall and form a base portion for supporting the clearing trap; e) the bullet deceleration material comprising a plurality of layers of bullet deceleration material, at least one layer being a rubber material and at least one layer being hardened steel; and/or f) a retention member disposed in the housing to limit movement of the bullet deceleration material or any combination thereof.
A clearing trap of the present invention may include a housing having a void therein for receiving bullets and at least one vent hole for venting gasses discharged into the housing, the housing having a proximal end though which a bullet is fired and a distal end and at least one diverter connected to the housing for channeling gasses passing out of the vent holes toward the distal end of the housing.
The clearing trap may also include has a plurality of vent holes and a plurality of diverters wherein the plurality of diverters are disposed adjacent the plurality of vent holes to channel gasses passing out of the vent holes toward the distal end of the housing. There is thus disclosed an improved clearing trap for use with firearms. It will be appreciated that numerous changes may be made to the present invention without departing from the scope of the claims.
The present application claims the benefit of U.S. Provisional Patent Application No. 61/369,979, filed Aug. 2, 2010, the entirety of which is hereby incorporated by reference.
Number | Date | Country | |
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61369979 | Aug 2010 | US |