Not Applicable.
Not Applicable.
1. Field of the Invention
This invention relates to affixing multiple ammunition magazines to each other during use. Specifically, magazines are attached side-by-side so that while one magazine is fully inserted in the gun, one or more auxiliary magazines are retained in a location convenient for fast and efficient insertion into the gun.
2. Relevant Art
Magazines are supplied independently and are intended to be used one at a time by the operator or shooter. Historically, the operator, usually a soldier or officer, would have to eject the magazine from the gun and reach somewhere on his/her person to obtain another loaded magazine and then place the new magazine into the magazine receiver. This operation takes a considerable amount of time and requires that the user take the focus off of the target to execute this multi-step operation. Many times the original empty magazine is also lost in this process because of the urgency required to get back to shooting.
Several other devices have been conceived to address this problem, but they failed to address several key requirements. Specifically, these devices allowed the user to attach two magazines to each other, but not in any fixed location, relative to one another. The user could slide the magazines up and down relative to one another. This was fine to initially fit the magazines, but then they would typically slide relative to one another in use and, in many cases, the second magazine could not be inserted once it was needed, in a critical situation. The secondary magazine could slide up during use in the case of resting the gun on the ground, as will happen while shooting in the prone position, which could allow one of the magazines to interfere with the gun or the ammunition casing ejection port door. This interference prevents the second magazine from reaching its seated position so the gun cannot function.
The final problem that was not addressed by the prior art is that the top bullet in the auxiliary magazine tends to work its way forward due to the sudden backward acceleration (recoil) of the gun during use. If the operator inserts the secondary magazine into the magazine receiver with the top bullet protruding forward slightly, a jam will likely occur that would temporarily render the weapon useless. The time that it would take to clear the jam could be critical to the safety and well-being of the soldier or officer. Accordingly, an ammunition control device in the form of a blocking element takes the place of the top round in a magazine and inhibits movement or dislodging of rounds in the spare magazine.
What is desired in a magazine holder is the following. First, a device should locate two magazines side by side in a precise location in all three dimensions. The device should be constructed in such a manner to minimize any chance of slippage of the magazines, relative to one another. In addition, the device should contain a bottom support so that if the user rests the bottom of the magazine on the ground, no load is placed on either magazine relative to one another and no slippage will occur. Multiple fasteners should be used to ensure a secure attachment of one magazine to the other.
A separate blocking element fits into the top of the auxiliary magazine to prevent dirt and debris from getting into the magazine as well as hold the top round down far enough so that it could not slide or be dislodged forward during use. This element can be easily ejected with one hand for a quick magazine change.
Because many individuals use the magazine to rest the gun on the ground or other surface while shooting, this article should have a radiused surface to rest on the ground. This surface will enable the user to easily maneuver the gun while shooting and protect the magazine case that would otherwise be in direct contact with the ground or hard surface.
U.S. Pat. Nos. 5,279,059; 6,327,805; and 6,796,074 are representative of the prior art.
In one aspect of the present invention there is provided a magazine doubler for carrying dual elongate magazines for ready use with a firearm comprising a body having front and rear portions and side walls defining a pair of magazine cavities for receiving respective lower ends of first and second magazines therein, each cavity being formed by front and rear walls, an upper opening, and a bottom wall, the body being formed of a resilient material substantially conformable to each magazine received in respective cavity. Securing means is disposed against front and rear portions of the body for forcibly squeezing the body to generally conform the body to outer surfaces of installed magazines to securely retain such magazines disposed in the cavities. Also included is at least a pair of spaced upwardly disposed rib members integral with the bottom wall of one cavity for contacting a bottom of a magazine disposed therein for positioning such magazine at a predetermined height with respect to another magazine disposed in another cavity. The other bottom wall of other cavity has at least a pair of spaced upwardly disposed rib members for contacting a bottom of a magazine disposed therein for positioning the height of such magazine at a predetermined height with respect to the upper opening of the other cavity. At least a pair of rib members in one cavity extend upwardly a distance greater than other at least a pair of rib members in the other cavity to provide that a magazine disposed in one cavity extends upwardly a greater height than a magazine disposed in the other cavity.
Other aspects of the invention provide securing means that includes spaced elongate members and a bracket mounted against the rear walls of the cavities, the securing means further includes a plurality of flanges adjacent the front walls of the cavities, the elongate members being defined by a plurality of threaded fasteners mounted between the bracket and each flange to force the bracket against the rear walls and to force the front walls against magazines carried within the cavities. The bracket includes a substantially rectangular plate having inside and outside surfaces, a pair of spaced parallel bracket walls projecting laterally from the interior surface, a plurality of laterally extending bosses are disposed between the bracket walls, each boss having an opening therethrough disposed in alignment with the respective fasteners for passage of the respective fastener therethrough. The rear portion of the body includes a pair of spaced rear walls and a plurality of recessed vertically spaced walls continuous with and disposed between said rear walls of the body, each rear wall of the body carrying one of the pluralities of the flanges. The pair of spaced bracket walls is locatable between the rear walls of the body to provide contact between the interior surface of the plate and the rear walls. The bottom wall of the body is arcuate in shape from one side wall to the other side wall.
In another aspect of the present invention there is provided a magazine doubler for carrying dual elongated magazines disposed side-by-side for ready use with a firearm comprising a flexible body including front and rear portions and side walls having a first and second cavity for receiving respective lower ends of first and second magazines therein, each cavity being defined by a substantially flat front wall and an arcuate rear wall, an upper opening, and a bottom wall, one bottom wall of the first cavity having a plurality of upwardly disposed spaced ribs for contacting a bottom of a magazine disposed therein for positioning such magazine at a predetermined height with respect to another magazine disposed in another cavity, and securing means disposed against the front and rear portions of the body, movable to compress against the front and rear portions to retain such magazines disposed in said cavities between the front and rear portions of the body. The bottom wall of the second cavity has a plurality of upwardly disposed spaced ribs for contacting a bottom of a magazine disposed therein for controlling the height of such disposed magazine with respect to the upper opening of the second cavity. Each rib in one cavity extends upwardly a distance greater than other ribs in the other cavity to provide that a magazine disposed in the first cavity extends upwardly a greater height above the upper opening of the first cavity than the height above the upper opening of the second cavity of a magazine disposed in the second cavity. The securing means includes spaced members and means for selectively moving the members to squeeze against the front and rear walls to generally conform the cavities to magazines in said cavities to secure magazines disposed in the cavities. The ribs are three in number and disposed adjacent each front wall and rear wall and are integral with respective bottom wall of each corresponding cavity for contacting a bottom of a magazine disposed therein for positioning such magazine at a predetermined height with respect to another magazine disposed in another cavity. There is also a medially located boss member integral with an upwardly disposed from each bottom wall, the height of each boss being substantially equal to the height of the ribs in respective said cavity for supporting the floor plate of a magazine disposed in respective cavity. An ammunition control device is included for preventing the dislodging forwardly of the top round in a magazine and has a blocking element locatable in the top space in a magazine. The ammunition control device includes a biasing member attached to the securing means for pulling the blocking element away from magazine when the element is moved out of the top space in a magazine.
The novel features which are believed to be characteristic of this invention are set forth with particularity in the appended claims. The invention itself, however, both as to its organization and method of operation, together with further objects and advantages thereof, may best be understood by reference to the following description taken in connection with the accompanying drawings, in which:
Introduction
The “Magazine Doubler” (MD) is formed as a dual magazine holder which according to the present invention is designed to provide operators with the ability to quickly and efficiently reload their rifles with a second magazine without compromising the reliability of the weapon. Other devices that clamp or strap magazines together do not insure that the proper staggering of the magazines will be maintained, nor do they protect the top round form the extra magazine from being dislodged forward during combat use. Both of these problems can cause malfunctions that would negate the advantage of having the spare magazine attached to the primary magazine. The MD uses fixed standoff points molded into the carrier to prevent the magazines from moving relative to each other. The strong molded nylon case uses three bolt-through connectors to insure that the magazines are locked in place, even after repeated aggressive loadings or dropping of the magazines to the ground. A “Top Round Protector” (TRP) is used to prevent the top round in the extra, unprotected magazine from being unintentionally dislodged forward of the front edge of the magazine due to the firing of the weapon. One round from the extra magazine is removed and the TRP is loaded in its place. The TRP is removed quickly by applying thumb pressure down and forward on the top rear release tab. The TRP is normally released before the start of the reloading cycle so that the hand used to control the magazines can be moved down near the bottom of the MD unit before the rifle's magazine latch has been activated. When the MD has been assembled and the TRP put in place, an unloaded MD unit should be locked into place on the weapon to see if there is any interference between the TRP and any type of mount on the upper receiver. Any interference can normally be fixed by moving the mount forward or aft.
Operation
Fully load both magazines. Determine which magazine will be the primary and which will be the reload. A right-handed shooter will start with the right magazine loaded in the rifle and the reload to his left. The left-handed shooter will choose the opposite magazine to start loaded. Once the primary magazine has been determined, at least one round is removed from the reload magazine. Most experienced combat operators remove two rounds from a reload magazine to insure the seating of a magazine with the bolt closed. The TRP 24 is now loaded in the reload magazine just like a cartridge, in the direction of the pictured cartridge on the top. On AR-M16 type weapons, the leading ledge of the TRP 24 goes inside the front lip of the magazine to secure the TRP 24 in place. The charged magazine is ready for use. Shooters need to practice the reload maneuver over and over until it is an immediate, automatic action. When a reload is necessary, the first action necessary is to remove the TRP 24 while the magazines are secured in the weapon. Use the thumb of the support hand, and push the back top of the TRP 24 down and forward at the same time. The TRP 24 should eject forward unless there is interference with some type of mount on the top of the upper receiver. The TRP 24 does not have to eject clear, it only has to be released. The support hand should now move down and grip the reload side of the doubler allowing enough clearance to reload the unit without trapping the fingers between the grip and the lower receiver. Once a secure grip is formed, the weapon's magazine latch should be pressed and the magazine change completed. If the TRP 24 has been released but trapped by some type of mount, it will jettison clear when the primary magazine and the unit are released from the magazine well.
Construction
With respect now to the drawings, an exploded view of the major components of the magazine doubler 10 is shown in
Magazines 60 are secured in place by a clamp in between walls 15 and 16 in the form of screws 14, screw heads 17, threaded nut plates 20 and nut plate retainer 18 to adjust the holding force of the case body 11 around magazines 60 as will be discussed hereinbelow. Screws 14 thread into one of three nut plates 20 that includes a non-circular plate carrying a round threaded passageway that fit within generally square recesses 19 formed into a nut plate retainer 18 that itself fits into recess 15A formed by a pair of spaced parallel interior flange walls 22. The outside wall 21 of retainer 18 is smooth to minimize interference with clothing, etc.
Lanyard 23 in the form of a rubber band fits through opening 25 in top round protector (TRP) (
Short height limiting ribs or bosses 35, 36 in cavity 26 provide height control of a magazine 60 (
Preferably, additional ribs or bosses 36A and 38A are located medially and provide support of the bottom of a magazine 60 against deformation because of magazine spring pressure.
The magazine-doubling device 10 has the ability to support the magazine's removable floor-plate using the magazine height/alignment stops 35, 36, 37, 38 that are incorporated into the design:
Parallel spaced vertical walls 22 project laterally and provide bosses 54-56 that have openings 51-53 therethrough. Spaced bosses 57-59 mate closely with recess 15A to provide a snug fit therebetween. Screw openings 51-53 communicate with recesses 19 for screws 14.
Assembly
The doubler 10 is provided in component form and is assembled as follows:
The screws 14 are preferably of a sufficient pitch to allow for small incremental tightening of the front and rear walls 16 and 15 respectively against magazines 60 to provide for the desired securing force of the case body 11.
The top round protector 24 is formed as a blocking element to fit into a magazine in place of the top round. The specific shape of the TRP 24, such as bosses 24A under an upper lips of a magazine and thumb knob 24B, may vary with the specific type of magazine 60 that is being used. Biasing means in the form of rubber band 23 is used to rapidly pull the TRP 24 out of the way when it is released from a magazine 60 by user action against thumb knob 24B. Rubber band 23 is looped around eyelet 25 at one end. The other end is looped around top screw 14, but may be attached at any other appropriate point.
Case body 11 and plate 18 are formed of nylon and have a flat black finish or other coloring and/or finish as may be desired in a specific application.
While the invention has been described with respect to certain specific embodiments, it will be appreciated that many modifications and changes may be made by those skilled in the art without departing from the spirit of the invention. It is intended therefore, by the appended claims to cover all such modifications and changes as fall within the true spirit and scope of the invention.
The present invention is related to provisional application 60/676,486 filed Apr. 29, 2005 entitled “MAGAZINE DOUBLER” by the present inventors.
Number | Name | Date | Kind |
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1656072 | Lukens | Jan 1928 | A |
1706244 | Meyerson | Mar 1929 | A |
3453762 | Fremont | Jul 1969 | A |
3623256 | Shiplee | Nov 1971 | A |
4484404 | Johnson | Nov 1984 | A |
4628627 | Johnson | Dec 1986 | A |
5279059 | Howard | Jan 1994 | A |
5676241 | Degoix et al. | Oct 1997 | A |
6202908 | Groover | Mar 2001 | B1 |
6212815 | Fitzpatrick | Apr 2001 | B1 |
6634131 | Fitzpatrick | Oct 2003 | B1 |
6668479 | Obong | Dec 2003 | B1 |
D502524 | Fisher et al. | Mar 2005 | S |
6874266 | Kong | Apr 2005 | B1 |
7073285 | Obong | Jul 2006 | B2 |
20070289189 | Oehri | Dec 2007 | A1 |
Number | Date | Country | |
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20060242877 A1 | Nov 2006 | US |
Number | Date | Country | |
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60676486 | Apr 2005 | US |