charger, firearm, and method

专利摘要:
CHARGER, FIREARM, METHOD FOR PROVIDING CARTRIDGES TO A FIREARM, AND, BOX CHARGER. A high capacity case loader is provided. A plurality of nested followers can be adapted to nest within one another and a plurality of springs can be configured to nest within one another to facilitate the advancement of cartridges within the case magazine for a firearm. A spring cup or cups can be used to nest additional springs that work in series and are nested within each other to further reduce the required spring height. The reliability of a conventional smaller capacity box loader can be maintained or exceeded without requiring significantly longer length in order to accommodate the increased capacity. The high-capacity box loader typically requires less frequent loader changes than conventional smaller-capacity box loaders.
公开号:BR112012023713B1
申请号:R112012023713-6
申请日:2011-03-25
公开日:2021-05-18
发明作者:Leroy James Sullivan；Robert Lloyd Waterfield；Hyunjung Samuel Eyssautier
申请人:ArmWest, LLC；
IPC主号:

专利说明:

PRIORITY CLAIM
[001] This patent application claims priority to provisional United States patent application serial number 61/317,396, filed March 25, 2010 and entitled High Capacity Magazine with Multiple Springs, the entire contents of which are expressly hereby. incorporated by reference. FUNDAMENTALS OF THE INVENTION Technical Field
[002] The present disclosure relates generally to firearms and is more particularly concerned with high-capacity box magazines for feeding firearm cartridges. Related Technique
[003] Removable magazines for feeding cartridges in firearms are well known. There are generally two main types of loaders, namely box loaders and drum loaders. Case loaders are generally limited to around 30 cartridges in order to maintain reliability. Drum loaders typically contain 50-150 cartridges. Due to their lower capacity, case loaders generally have to be changed more often than drum loaders. Box chargers are much lighter, simpler and more compact. A person can load more loaded cartridges in case loaders than drum loaders. Drum loaders are generally preferred over case loaders for high capacity applications.
[004] It is desirable to provide chargers with high capacities. Using high capacity chargers requires less frequent charger changes than using low capacity chargers. Using high-capacity chargers gives more assurance that the firearm will be ready for use when needed.
[005] Due to their larger capacities, drum loaders require less frequent loader changes compared to box loaders, but drum loaders are heavier, more complicated and are comparatively bulky. Although drum magazines initially provide more firepower, their weight and volume reduce the amount of ammunition (kept in magazines) that a person can carry. One option is for a person to load a drum magazine (such as a 100-shot drum magazine) into the firearm for initial firepower and load the rest of the ammunition into box magazines (such as 30 box magazines cartridges). However, such an approach is often impractical because of the volume of the drum loader and because of the number of case loaders required, for example.
[006] It is desirable to combine the large capacity of a drum loader with the compact, lightweight size and portability of a box loader in order to obtain both the highest initial drum loader firepower and the highest sustained firepower of a plurality of box loaders. However, as the size of a magazine is increased to accommodate more cartridges, a longer, stronger spring usually has to be used to move the cartridges inside the magazine. As the capacity of a charger is increased, each cartridge added tends to reduce the reliability of the charger. For example, the greater force provided by the greater force spring, particularly when fully compressed, can cause undesirable feeding problems that render the firearm temporarily inoperable.
[007] According to conventional methodology, increasing the capacity of a conventional dual column box magazine from the 30 common cartridges currently to 100 cartridges would undesirably more than triple the magazine length and would also require three and one-third the force to accelerate the three and one-third more cartridge weight in order to lift the top cartridge into the firearm's feed path as quickly as possible when using a conventional 30-cartridge magazine (such as a 30-cartridge magazine for which most firearms are normally designed). Such conventional firearms would often not be able to remove the upper cartridge forward out of the magazine and into the chamber if the force produced which lifts and holds the upper cartridge in a feeding position were increased by three times and one-third. The use of such force in this way would often undesirably interfere with the operational cycle of the automatic firearm.
[008] U.S. Patent 2,217,848 discloses a four-post loader with a partition wall that passes completely through the longitudinal interior space of the loader (thus vertically dividing the loader in two). A loader like this uses two separate followers and springs so that each follower and spring have to advance their respective two sets of cartridges separately without a positive connection between the two followers to synchronize their movement. Such unsynchronized separate movement of the two sets of cartridges can result in undesirable magazine jamming.
[009] U.S. Patent 4,589,218 discloses a four-column loader that has a longitudinal partition wall and uses a single follower to advance all four columns, including advancing the last cartridge, to the feed position. However, a single follower that advances all four columns of cartridges cannot easily be made to continue upward through a portion of the double column of a magazine. Such dual column magazines or magazine portions are required in order to adapt a firearm's magazine chamber to the M4/M16 weapon family, whose interface dimensions for the magazine adapter have been recommended as a NATO standard.
[0010] In view of the foregoing, it would be beneficial to provide an improved box loader, such as a box loader that has greater capacity and/or greater reliability compared to modern loaders. SUMMARY OF THE INVENTION
[0011] According to an embodiment, a high-capacity box loader is provided. The high-capacity box loader typically requires less frequent loader changes than conventional smaller-capacity box loaders. A plurality of nested followers that are adapted to nest within one another and a plurality of springs that are configured to nest within one another can facilitate the advancement of cartridges within the case magazine for a firearm in a manner that substantially maintains the reliability of a conventional smaller capacity box loader without requiring significantly longer loader length to accommodate the increased capacity. For example, two followers and a plurality of springs can facilitate the advancement of cartridges within the case loader. A spring cup or cups can be used to nest additional springs that work in series and are nested inside each other to further reduce the required spring height.
[0012] The scope of the disclosure is defined by the claims, which are incorporated into this section by reference. A fuller understanding of embodiments of the present disclosure will be provided to those skilled in the art, as well as a realization of additional advantages thereof, taking into account the following detailed description of one or more embodiments. Reference will be made to the accompanying drawing sheets which will first be briefly described. BRIEF DESCRIPTION OF THE FIGURES
[0013] Figure 1 shows a weapon system comprising a firearm and a high-capacity magazine, according to an embodiment of the disclosure.
[0014] Figures 2-9 are various views of a 60-cartridge magazine, according to an embodiment of the development.
[0015] Figures 10-17 are several views of a magazine of 100 cartridges, according to an embodiment of the development.
[0016] Figure 18 is a cross-sectional view of a high-capacity magazine that is substantially filled with cartridges, according to an embodiment of the disclosure.
[0017] Figure 19 is a cross-sectional view of the high-capacity magazine of Figure 18 rotated approximately 90°, according to an embodiment of the disclosure.
[0018] Figure 20 is a cross-sectional view of a high-capacity magazine shown containing 24 cartridges, according to an embodiment of the disclosure.
[0019] Figure 21 is a cross-sectional view of the high-capacity magazine of Figure 20 rotated approximately 90°, according to an embodiment of the disclosure.
[0020] Figure 22 is a cross-sectional view of a high-capacity magazine shown containing 20 cartridges, in accordance with an embodiment of the disclosure.
[0021] Figure 23 is a cross-sectional view of the high-capacity magazine of Figure 22 rotated approximately 90°, according to an embodiment of the disclosure.
[0022] Figure 24 is a cross-sectional view of a high-capacity magazine shown containing 16 cartridges, according to an embodiment of the disclosure.
[0023] Figure 25 is a cross-sectional view of the high-capacity magazine of Figure 24 rotated approximately 90°, according to an embodiment of the disclosure.
[0024] Figure 26 is a cross-sectional view of a high-capacity magazine without cartridges, according to an embodiment of the disclosure.
[0025] Figure 27 is a cross-sectional perspective view of the empty high-capacity magazine of Figure 26 rotated approximately 90°, according to an embodiment of the disclosure.
[0026] Figure 28 is an enlarged cross-sectional view of a high-capacity magazine showing the fusing of cartridges in a tapered portion thereof, according to a symmetric housing embodiment of the disclosure.
[0027] Figure 29 is an enlarged cross-sectional view of a high-capacity magazine showing the fusing of cartridges in a tapered portion thereof, according to an asymmetric housing embodiment of the revelation.
[0028] Figures 30A-30C are seen of the internal follower and external follower of a capacity loader according to an embodiment of the disclosure.
[0029] Figure 31 is a side view of a first spring and spring cup of a high-capacity loader, according to an embodiment of the disclosure.
[0030] Figure 32 is a side view of a second spring, an outer follower, a third spring, and an inner follower of a high-capacity loader, according to an embodiment of the disclosure.
[0031] Figures 33 and 34 are perspective views of an inner follower and an outer follower positioned in such a way that the inner follower can move downwardly so as to nest at least partially within the outer follower, according to a development mode.
[0032] Figure 35 is a perspective view of the inner follower and the outer follower of figures 33 and 34, also showing a dividing wall, according to an embodiment of the disclosure.
[0033] Figure 36 is a cross-sectional view showing an inner follower nested within an outer follower, according to an embodiment of the disclosure.
[0034] Figure 37 is a cross-sectional view of the inner follower and outer follower of Figure 36, also showing four cartridges arranged above the inner follower and outer follower, according to an embodiment of the disclosure.
[0035] Figure 38 is a perspective view of an internal follower, according to an embodiment of the disclosure.
[0036] Figure 39 is a perspective view of an external follower, according to an embodiment of the disclosure.
[0037] Figures 40-42 are several views of an external follower, according to an embodiment of the disclosure.
[0038] Figures 43-44 are various views of an internal follower, according to an embodiment of the disclosure.
[0039] Figures 45-46 are various views of a spring cup, according to an embodiment of the disclosure.
[0040] Figures 47-58 are several views of a housing, according to an embodiment of the disclosure.
[0041] Figures 59-61 are various views of a partition wall, according to an embodiment of the disclosure.
[0042] Figures 62-63 are various views of a duplicator (which doubles the thickness of the front wall) with ramps, according to an embodiment of the disclosure.
[0043] Figure 64 is a cross-sectional view of the upper end of a loader, showing the feed chute duplicator of Figures 62-63, according to an embodiment of the disclosure.
[0044] Fig. 65 shows three cartridges before being compressed by the magazine (as seen by sectional line 65 of Fig. 67A), according to an embodiment of the disclosure.
[0045] Fig. 66 shows three cartridges after being compressed by the magazine (as seen by sectional line 66 of Fig. 67B), according to one embodiment of the disclosure.
[0046] Fig. 67A shows a portion of the magazine that is adapted to compress cartridges, according to an embodiment of the development.
[0047] Fig. 67B shows a portion of the magazine that is squeezing cartridges, according to an embodiment of the development.
[0048] Figure 67C is a top view of a loader with opening with a wide feed ferrule, according to an embodiment.
[0049] Figures 68A-68K show a loader with a short neck, according to one embodiment of the development.
[0050] Figure 69 is a side view showing the three upper cartridges being compressed to accelerate the front of the upper cartridge to ensure that it is positioned against the 2° feed ferrules, according to an embodiment of the disclosure.
[0051] Figure 70 is a perspective view showing the three upper cartridges being compressed to accelerate the front of the upper cartridge to ensure that it is positioned against the 2° feed ferrules, according to an embodiment of the disclosure.
[0052] Figure 71 is a flowchart showing the operation of the high-capacity loader, according to an embodiment of the disclosure.
[0053] Modalities of the present disclosure and its advantages are best understood by reference to the following detailed description. It should be noted that like reference numbers are used to identify like elements illustrated in one or more of the figures. DETAILED DESCRIPTION OF THE INVENTION
[0054] Examples of high-capacity charger modalities are disclosed here. One or more embodiments of the present invention use four or more columns of cartridges that transition to fewer columns (such as two columns, for example). This is done in a way that controls the cartridges as they transition to fewer columns so that each of the cartridges matches and coordinates reliably with the other cartridges.
[0055] Such modalities generally require less frequent charger changes than conventional lower capacity chargers. Greater capabilities can be provided without sacrificing reliability. Thus, a more effective weapon system is provided for use in battlefield, police, and other situations.
[0056] In one embodiment, a high-capacity loader can be implemented with a width of four columns which reduces the overall length of the loader. However, since NATO countries do not have a general agreement to use the same double-stacked column magazine that their firearms must adapt to, an upper region of the high-capacity magazine can use a double-stacked column configuration to adjust. to the rifle magazine chamber recommended by the NATO standard. Thus, in a modality like this, the reduction in the length of the loader is limited to this value, which is facilitated by the greater capacity contributed by the four-column loader section.
[0057] In one embodiment, the greater width of the four columns can increase the potential width of spring turns that are used to force the cartridges up into the magazine. This allows the springs to be fitted in a full circle coil (to define round springs) rather than the conventional elongated coil configuration, eg rectangular which is used in conventional two column width loader. Such conventional elongated spiral springs are thus highly tensioned, even in 30 shot loaders it is common practice to load only 28 cartridges to ensure that the spring does not seat and consequently cannot properly feed the last cartridges. Advantageously, round coils have less tension per load than any other form of coil because they are equally tensioned over the entire length of the wire and thus tend not to have high concentrated stress points of conventional elongated coil springs.
[0058] Round turns (which may be substantially concentric or which may be eccentric with respect to each other) of different diameters can be made to telescopically fit or nest within one another to reduce the height of the compressed stack of the spring turns and the height of the resulting charger. An independent vertical partition wall can then fit into the approximate center of a plurality of such springs without interfering with or limiting the space available for the spiral springs. The dividing wall can effectively provide a dividing wall or partition so as to limit undesirable movement of the springs, such as their lateral movement. The divider wall can also divide the cartridges into two sets of these and can help position the cartridges for proper fusion of the two sets.
[0059] A transitional or tapered portion of the magazine between the four-column region and the two-column region thereof can accelerate the cartridges as they move so as to substantially reduce the output force on the upper cartridge while increasing the input force required to advance three and one-third times the weight (eg the weight of 100 cartridges according to a modality versus the weight of 30 cartridges for a conventional magazine) the equivalent distance at the same time as in the magazine 30 conventional bullets. This can be done by further interrupting and restarting cartridge movement during each weapon firing cycle.
[0060] This acceleration is the result of a principle analogous to the relationship of force, area, and velocity in hydraulics. The four columns of cartridges act as a larger piston driving the smaller double column of cartridges. The double column of cartridges is thus driven at twice the speed with half the output force.
[0061] The result is that only about half the otherwise three and one-third of the force is needed in such a modality to lift the upper cartridge in the desired amount of time (the portion of the automatic weapon cycle enters when the movement of the back of the breech uncovers the upper cartridge, then reverses movement and begins to drive the cartridge forward). Because of this acceleration, only about half of the force that would otherwise be transferred to the top cartridge and applied to it to the top (ferrals) of the magazine is actually applied. Thus, instead of the output force of the 100-cartridge magazine being 333% of the output force of a conventional 30-cartridge magazine, the output force is only about 83% of this (which provides a gain of 4 to 1). In this way, the peel force is substantially and desirably reduced compared to that of a conventional 30-cartridge magazine.
[0062] As those skilled in the art will appreciate, the removal force of a spring-loaded automatic firearm is the force that the breech must apply to the top cartridge of a magazine in order to propel (remove) the cartridge forward outward the magazine and into the cylinder chamber of the firearm. Excessive pull-out resistance (which opposes the pull-out force) can cause an interrupted feed or deny fire, in which the firearm cannot be used until the malfeed is corrected. Such malnutrition can result in a soldier or police officer being put in danger and possibly dead. Therefore, it is important to keep the peel resistance below what the firearm is designed to accommodate.
[0063] In order to reliably control and coordinate the transition marriage of four-column to two-column cartridges, it is important to maintain the pattern and relative position of each cartridge on one side of the dividing wall with respect to the cartridges on the opposite side of the dividing wall which they will eventually marry. If one set (on one side of the dividing wall) of cartridges had to move slower than the other set of cartridges (on the other side of the dividing wall), then the cartridge that reaches the double column section first may pass through the empty space of the cartridge is late and the charger could get stuck.
[0064] In one embodiment, to ensure that cartridge movement on both sides of the dividing wall remains synchronized, a four-column follower assembly can be adapted as a piece surrounding the dividing wall, such as springs, so that all move forward together or not move forward. In such an embodiment, the four-column follower set can be adapted as a tile by nesting two followers, which then combine to define a one-piece follower set.
[0065] As discussed above, U.S. Patent 2,217,848 discloses a four-post magazine with a partition wall that passes completely through the longitudinal interior space of the magazine (thus vertically dividing the magazine substantially in two). A loader like this uses two separate followers and springs so that each follower and spring have to advance their respective two sets of cartridges separately without a positive connection between the two to synchronize movement. As discussed above, such separate unsynchronized movement of the two sets of cartridges can result in undesirable magazine fire denial.
[0066] By way of comparison with US patent 2,217,848 and according to one embodiment, the two followers disclosed herein can be nested in a way that provides a positive connection between them, at least during a portion of their displacement within charger housing as described in detail below. Such a positive connection facilitates the synchronization of the two sets of cartridges so as to substantially mitigate the likelihood of denial of magazine fire.
[0067] As discussed above, U.S. Patent 4,589,218 discloses a four-column loader that has a longitudinal divider wall and uses a single follower to advance all four columns, including advancing the last cartridge to the feed position. A single follower that will advance all four columns of cartridges cannot readily be made to continue upward through a dual column magazine, which is the configuration required to fit the magazine chamber of a firearm in the M4/M16 family of weapons. This simple follower design also requires a stepped (non-symmetrical) transition section with ^ of the cartridge diameter as described in the referenced patent to maintain the pattern and relative position of each cartridge on one side of the divider wall with respect to cartridges on the opposite side. dividing wall they will eventually match.
[0068] By way of comparison with US patent 4,589,218 and according to one embodiment, the follower set disclosed herein comprises followers nested in such a way that the combined followers cooperate to advance all four columns in the four column region of the magazine and in such a way that one of the followers can separately continue upward through a two-post region of the magazine, required to adapt the magazine chamber of a firearm in the M4/M16 family of weapons. The loader can use the cartridge diameter stepper in the transition section or alternatively can use a symmetric transition section combined with followers that will work together with the symmetric transition zone and telescopically fit the diameter of the additional cartridge to ensure that cartridges match correctly as they pass through the transition zone.
[0069] According to an embodiment, a case magazine for a firearm has a housing with two substantially different widths. The wider bottom region (which defines the four-column region) can accommodate four columns of crossed cartridges from it. A transition defined by converging or tapered surfaces at one end of the lower region leads to a narrower upper region (which defines the two-column region) that can accommodate an interlocking double staggered column of cartridges. Cartridges in the lower region can be separated into two double staggered columns by a free vertical dividing wall and can be advanced by an inner contoured follower and outer contoured follower that are at least partially nested together to form a single follower set surrounding the wall independent and spring-loaded on the external follower.
[0070] According to one embodiment, an inner follower spring that is weaker than the combined outer follower springs remains telescopically retracted, i.e., substantially compressed, and inoperable within the outer follower to facilitate definition of the combined contoured steps of the two followers. The two contoured steps support the cartridges in slightly staggered positions that facilitate their fusing in transition. The two followers can cooperate to coordinate the advancement of the two separate double columns of cartridges towards the tapered surfaces that guide and transition, i.e., merge the two double columns into an interconnected double column staggered just above the uppermost end of the dividing wall. Thus, the two staggered double columns can form a double staggered column as they enter the upper narrower region of the housing.
[0071] As the last cartridges advance away from the wider bottom region, the movement of the outer follower can be impeded by stops. Stopping the outer follower can relieve the inner spring of the increased force of the outer spring that kept the inner spring inoperable and can act to release the inner follower, which can then be independently actuated by the inner spring to advance the remaining double column of cartridges through the narrower upper region of the housing.
[0072] Thus, according to a modality, the same setting that is used to increase the charger capacity can help alleviate feeding problems. That is, the use of four columns that merge into two columns can reduce the required peel force in such a way that problems caused by the firearm with insufficient peel force are substantially alleviated. This is made possible by using a follower assembly where a portion of it (one of two followers thereof) can pass through the narrower two-column region of the magazine to facilitate the advancement of cartridges into the magazine.
[0073] The common M16/M4 charger chamber was originally designed for a straight 20 cartridge charger. The standard 5.56 cartridge case has a 1° taper included, the result is such that, in a dual column 20 cartridge magazine, the follower has to change its angle relative to the rear walls as the magazine is loaded and/ or unloaded (such as during cartridge feeding during firing) by 10°. Cartridges adjacent to the follower must continue at this same 10° angular displacement.
[0074] Extending this straight design to 30 cartridges will cause the follower and the cartridges adjacent to the follower to go through a 15° offset for a full loader. This angular displacement and friction resulting from the cartridges sliding together increases friction and thus results in unreliable function.
[0075] If a tapered cartridge is rolled across a flat surface, then the cartridge tends to roll in a substantially curved path. If the magazine has the same curve, then each cartridge contained in the magazine follows the same curved path as its neighbors without shifting back and forth against each other. However, if these cartridges are confined in a straight magazine section, then each cartridge has to slide against its neighbors to change the angle as they advance. Since the cartridges are strongly pressed together by the spring force of the magazine, the cartridges tend not to shift or change angle smoothly or exaggeratedly. In the straight section, some of the cartridges may shift, and some of the cartridges may not shift. The result can be a sluggish loader because of frictional displacement. Additionally, there may be a tendency to present the top cartridge nose down in a way that can cause ammunition to jam in the magazine.
[0076] Current metal 30-cartridge magazines are straight where they fit into the magazine chamber and then have a curved portion below the straight portion. The curve is such that it is tighter than the natural curve created by the 1° taper per cartridge. Thus, once 30 cartridges are loaded into the magazine, then the follower and cartridges adjacent to it are relatively perpendicular to the rear and front wall of the magazine. This results in a relatively reliable 30-cartridge loader where the follower is relatively perpendicular to the back wall when full (and empty) and, as the cartridges are removed, it gradually angles nose-up until it reaches the straight section. The offset in angle of the follower and/or adjacent cartridges is approximately 6.5° (3.5° less than straight 20 cartridge magazine). The follower and adjacent cartridges are approximately perpendicular to the rear wall when the magazine is full and when the magazine is empty, but are approximately 6.5° nose up when approximately half full.
[0077] For a high-capacity charger, it is desirable to alleviate friction. Eliminating the angle of change of the follower and keeping the follower and most cartridges relatively perpendicular to the back wall (reducing sliding friction between cartridges as they change angle) substantially alleviates friction and improves cartridge flow.
[0078] According to an embodiment, a substantial portion of the magazine has the correct curve for the included 1° angle of the cartridges. Between the straight section and the portion with the correct curve there may be a short section, such as between the cartridge 13 and the cartridge 16, which has a raised curve. The result is that all cartridges beyond 16 cartridges and the follower remain relatively perpendicular to the rear wall, thus substantially eliminating the sliding friction between these cartridges while the follower is advancing most of the cartridges.
[0079] Examples of modalities are discussed below with reference to the figures. As those skilled in the art will appreciate, other modalities, which may use other features or combinations of features, may likewise fall within the scope of the claims.
[0080] Figure 1 illustrates a weapon system comprising a firearm 1000 and a high-capacity magazine 100, according to an embodiment. The magazine 100 can be detachably attached to the firearm 1000. In one embodiment, the magazine 100 can attach to the firearm 1000 using a catch, such as in the way a modern magazine attaches to an M-16 rifle. The catch can be released using a magazine release 105 to facilitate removal of the magazine 100 from the firearm 1000. In other embodiments, the magazine 100 can be attached and released from any desired firearm in any desired manner.
[0081] Firearm 1000 can be any desired repeating firearm (other than a single shot). Loader 100 can be adapted to any desired caliber and can have any desired capacity, as discussed in detail below.
[0082] Figures 2-9 are several views of a high-capacity magazine, for example, of 60 cartridges, according to a development modality. Figures 10-17 are several views of a high-capacity magazine, eg 100 cartridges, according to an embodiment of the development.
[0083] Figures 18 and 19 show a magazine 100 that is substantially full of cartridges 301, according to an embodiment of the disclosure. A lower region 102 of housing 101 may be adapted to hold cartridges 301 in an overall four-cross configuration and an upper region 103 of housing 101 adapted to hold cartridges 301 in an overall two-cross configuration, according to one embodiment. Thus, the lower region 102 of the housing 101 may be substantially wider than the upper region 103 of the housing 101.
[0084] In the cross-four configuration and/or the cross-two configuration, the 301 cartridges can be mismatched (as shown in figure 18). Thus, all of the 301 cartridges in a particular row of cross configuration of four and/or in a particular row of cross configuration of two can be at different heights or levels with respect to one another.
[0085] Although the housing 101 may be adapted to contain cartridges 301 generally four-crossed in a lower region 102 thereof and generally two-crossed in an upper region 103 thereof, in the manner illustrated and discussed herein, this is only by way of example, not limitation. Any desired number of regions, containing any desired number of cartridges 301 across it, can be used.
[0086] According to one embodiment, a tapered portion 113 may connect the lower region 102 of the housing 101 to the upper region 103 of the housing 101. The tapered portion 113 may be formed in the housing 101. The upper region 103 of the housing 101 may be adapted to be received within a chamber of the magazine 109 of the firearm 1000 (as shown in Figure 1) and the lower region 102 may be adapted to extend outwardly away from the firearm 1000 (as also shown in the figure 1).
[0087] The housing 101 may comprise a lower end 111 and an upper end 112. Ferrules 116 may be formed on the upper end 112 of the housing. The ferrules 116 can be adapted to hold the cartridges 301 contained in the housing 101 until the cartridges 301 are fed by the magazine 100, such as by the action of the firearm breech during cocking of the dog or firing of the firearm 1000. The ferrules 116 may also define one or more inner follower stops 122 that limit the movement of an inner follower 162 (see Figures 26 and 27) away from the lower end 111 of the housing 101.
[0088] The ferrules 116 can be adapted to provide an approximately 2° increase in angle beyond the cartridge taper (0.5° per side for 5.56 cartridges) of the 301A top cartridge to improve feeding, prevent ammunition jamming in the magazine , and reduce the removal force of the upper cartridge, according to a modality. Thus, a longitudinal axis 106 of the upper cartridge 301A may form an angle, angle A, of approximately 2.5° with respect to an axis 107 which is parallel with respect to the core of the firearm 1000.
[0089] According to one embodiment, the upper region 103 of the magazine 100 can be adapted to urge the cartridges 301 together as the cartridges 301 approach the upper end of the housing 101. Thus, the cartridges 301 can be moved in a manner. that they tend to be in more than one staggered single row configuration as shown in figure 66 (rather than substantially in the double column configuration shown in figure 18 and 65). This biasing of the cartridges 301 can be facilitated by making the upper region 103 narrower as the cartridges 301 move further upward and/or by applying spring pressure inwardly on the cartridges 301 as the cartridges 301 move upward in the upper region. 103. Such spring pressure can be applied by housing 101 in the upper region 103 and/or by springs 150 and 151 (see figures 20 and 21). Such thrust of the cartridges 301 can be facilitated by applying force to the body of the cartridges 301, or alternatively by applying force to any other area of the cartridge 301 (i.e., the neck, shoulder or projectile thereof).
The thrust of the cartridges 301 together as the cartridges 301 approach the upper end of the housing 101 tends to accelerate the upward movement of the cartridges 301 as the cartridges 301 approach the upper end 112 of the magazine 100. Or that is, in the upper region 103, the cartridges 301 closer to the upper end 112 may tend to move faster than the cartridges 301 further away from the upper end 112. This upward acceleration of the front part of the cartridges 301 using the direct guide channel is shown. in Figures 65-67B, 69 and 70 and ensures that the front of the cartridges 301 moves to engage the feed ferrules 116 and can substantially inhibit unwanted jamming of the cartridges 301 in the magazine as the cartridges 301 are fed into the weapon. of fire 1000.
[0091] Tapered portion 113 may define one or more outer follower stops 121 (see figure 26) within magazine 100. Outer follower stops 121 may limit movement of outer follower 161 away from lower end 111 of housing 101 as outer follower 161 moves upward (as shown in figure 24). For example, one or more portions of outer follower 161 may rest on outer follower stops 121 as outer follower 161 moves upward. Inner guide surfaces (such as 146 of figure 53) of loader 100 can be used as follower stops for outer follower 161.
[0092] According to an embodiment, the housing 101, the outer follower 161 and the inner follower 162 can be made of metal, plastic, carbon fiber, fiberglass and/or epoxy resin. For example, housing 101 can be made of sheet metal or plastic. As a further example, housing 101 can be made from any desired combination of aluminum, steel and/or titanium. Any other suitable material or combination of materials can similarly be used. Housing 101 can be made by forming, for example, bending or stretching, and/or by machining, for example milling. Housing 101 can be done by any method desired.
[0093] With particular reference to figures 18 and 19, cross-sectional views of magazine 100 completely filled with cartridges 301 are illustrated, according to an embodiment. For example, the magazine 100 can be configured in this way when it has been fully loaded and none of the cartridges 301 have been deflagrated or otherwise removed from it.
[0094] It is noted that the first spring 150, the second spring 151 and the third spring 152 can be substantially completely compressed when the magazine 100 is fully loaded. This configuration of the first spring 150, the second spring 151, and the third spring 152 is shown in Figure 30A and is discussed in more detail with respect thereto. With the magazine 100 completely filled with cartridges 301, as shown in figures 18, 19 and 30, or with the magazine partially filled with cartridges 301, as shown in figures 20-25, the upper cartridge 301A and, consequently, the other cartridges 301 , can be held in place by ferrules 116.
[0095] Figures 18-27 show the magazine in several different states, i.e., loaded with different numbers of cartridges 301 or loaded with none of cartridges 301. Within the housing 101 a mechanism for feeding cartridges 301 upwards can be maintained, toward the upper end 112 of housing 101. This mechanism may comprise first spring 150, spring cup 160, second spring 151, outer follower 161, third spring 152, inner follower 162, and a partition wall 170 .
[0096] The housing 101 may substantially define a closure for the magazine 100. In one embodiment, substantially all of the components of the magazine 100, as well as any cartridges 301 contained therein, may be disposed within the housing 101. In another embodiment, the housing 101 may be more frame type. For example, housing 101 may have substantial openings such that housing 101 does not completely enclose all components of magazine 100, as well as any cartridges 301 contained therein. In another embodiment, portions or all of the components of the magazine 100 can be disposed outside the housing 101. In this way, the housing 101 can have any desired configuration.
[0097] According to an embodiment, the first spring 150 may be disposed substantially between the spring cup 160 and the lower end 111 of the housing 101. The spring cup 160 may be disposed substantially between the first spring 150 and the second spring 151. The second spring 151 may be disposed substantially between the spring cup 160 and the outer follower 161. The outer follower 161 may be substantially disposed between the second spring 151 and the third spring 152. The third spring 152 may be disposed substantially between the outer follower 161 and the inner follower 162. The inner follower 162 may be disposed substantially between the third spring 152 and the upper end 112 of the housing 101.
[0098] According to one embodiment, the dividing wall 170 may extend upwards from the lower end 111 of the housing 101 and may be attached to the housing 101 only at the lower end 111 of the housing 101. Thus, the partition wall 170 may be adapted in such a way that it is not supported along its length or at its upper end and is free, flexible, and self-centered. The dividing wall 170 can be supported and centered by the cartridges 301 on any side thereof when the magazine 100 is at least partially filled with the cartridges 301.
The partition wall 170 may extend through the first spring 150, the spring cup 160, the second spring 151, the outer follower 161, the third spring 152 and the inner follower 162. The partition wall 170 may extend. if through the first spring 150 and the second spring 151, such as through their entire length, when the first spring 150 and the second spring 151 are fully expanded within the housing 101. The partition wall 170 may extend substantially along a central (e.g. longitudinal) axis 181 of the first spring 150 and the second spring 151.
[00100] The dividing wall 170 may extend through a portion of the third spring 152 when the third spring 152 is fully expanded within the housing 101 and may extend along the entire length of the third spring 152 when the third spring 152 is at least partially compressed (as shown in figure 24). The dividing wall 170 may extend substantially along the central axis 181 of the first spring 150 and the second spring 151.
[00101] Outer follower 161 and inner follower 162 may move or slide within housing 101 and along partition wall 170. A web 163 and opening 164 (shown in Figure 35) within outer follower 161 and inner follower 162, respectively, can receive the dividing wall 170 and facilitate such movement.
[00102] Figures 26 and 27 illustrate the magazine 100 without cartridges 301 contained therein, according to an embodiment. Thus, magazine 100 is empty, as it would be before loading with cartridges 301 and as it would be after all cartridges 301 have been fed through it (such as after firing the firearm 1000).
[00103] Thus, the magazine 100 can comprise the housing 101, inside which the cartridges 301 can be disposed (as shown in figures 18-25). Cartridges 301 disposed within housing 101 may be fed by magazine 100 into firearm 1000, as discussed in detail herein. Housing 101 can be adapted to hold a greater number of cartridges 301 compared to typical modern magazines, particularly modern box magazines of approximately the same length.
[00104] For example, housing 101 may be adapted to hold 30, 50, 100, 150, or more of the 301 cartridges. Housing 101 may be adapted to hold any desired number of cartridges 301. Thus, although housing 101 is illustrated in figures 18-27 is adapted to contain 100 of the cartridges 301, this is by way of example only and not by way of limitation.
[00105] The housing 101 can be adapted to contain any type of desired cartridge 301. For example, the housing 101 can be adapted to contain any desired caliber rifle or pistol cartridges. More particularly, housing 101 may be adapted to contain 0.223, 5.56x45 NATO, 7.62x39 mm, or 7.62x51 NATO, for example.
[00106] Figure 28 is an enlarged cross-sectional view of the high-capacity magazine 100 showing the fusing of cartridges 301 in a tapered portion 113 thereof, according to an embodiment of the disclosure. In accordance with this embodiment, tapered portion 113 is substantially symmetrical (has portions 113A and 113B which are substantially symmetrical with respect to one another) and a ^ diameter clearance of cartridge 387 is provided between lower cartridge 301 and inner follower. 162. The two sets of cartridges that make up the 4-column section can be mirror images of each other and offset ^ of the cartridge diameter.
[00107] Figure 29 is an enlarged cross-sectional view of the high-capacity magazine 100 showing the fusing of cartridges in a tapered portion 113 thereof, according to another embodiment of the disclosure. In accordance with this embodiment, tapered portion 113 is substantially asymmetrical (has portions 113A and 113B which are substantially asymmetrical with respect to one another) and no clearance is provided between lower cartridge 301 and internal follower 162.
[00108] With particular reference to Figs. 30A-30C, an enlarged cross-sectional view of the lower end 111 of a full high-capacity magazine 100 is illustrated according to an embodiment. As previously mentioned, when the magazine 100 is fully loaded with cartridges 301, then the first spring 150, the second spring 151, and the third spring 152 can be fully compressed. In this configuration, spring cup 160 may be substantially nested within first spring 150, second spring 151 may be substantially nested within spring cup 160, outer follower 161 may be substantially nested within second spring 151, third spring 152 may be substantially nested within outer follower 161, and inner follower 162 may be substantially nested within third spring 152.
[00109] By substantially nesting or telescopically engaging the first spring 150, the second spring 151, and the third spring 152, the use of a smaller spring assembly can be facilitated. For example, approximately twice the number of turns of the spring can be used, as could be done otherwise.
[00110] According to an embodiment, the cartridge 301B can be substantially supported by the surface 169 of the external follower 161. The cartridge 301C can be substantially supported by the surface 166 of the external follower 161, the cartridge 301D can be substantially supported by the surface 167 of the inner follower 162, and cartridge 301E may be substantially supported by surface 168 of outer follower 161. A cartridge diameter clearance of approximately ^ 387 may be formed between cartridge 301C and surface 165 of inner follower 162 in order to further facilitate plus cartridge fusing when using a symmetrical transition section 113 as discussed here. Inner follower 162 can accommodate a displacement of a distance of approximately ^ of the diameter of cartridges 301 to properly advance cartridges through the upper two-column section.
[00111] Figure 31 is a side view of the first spring 150 and the spring cup 160 of the high-capacity magazine 100, according to an embodiment. Spring cup 160 is shown nested within a portion of first spring 150.
[00112] Figure 32 is a side view of the second spring 151, the outer follower 161, the third spring 152 and the inner follower 162 of the loader 100, according to one embodiment. A portion of the outer follower 161 is shown nested within a portion of the second spring 151, a portion of the third spring 152 is shown nested within a portion of the outer follower 161, and a portion of the inner follower 162 is shown nested within a portion of the third spring 152.
[00113] Figures 33 and 34 are perspective views of the inner follower 162 and the outer follower 161 positioned in such a way that the inner follower 162 can move so as to nest at least partially within the outer follower 161, according to an embodiment of revelation. Figure 35 is a perspective view of the inner follower 162 and outer follower 161 of Figures 33 and 34, also showing the partition wall 170, in accordance with an embodiment of the disclosure.
[00114] Figure 36 is a cross-sectional view showing the inner follower 162 nested within the outer follower 161, according to an embodiment of the disclosure. Fig. 37 is a cross-sectional view of inner follower 162 and outer follower 161 of Fig. 36, also showing four cartridges 301 disposed above inner follower 162 and outer follower 161, in accordance with one embodiment of the disclosure. Inner follower 162 may nest either completely or partially within outer follower 161.
[00115] Fig. 38 is a perspective view of the internal follower 162, according to an embodiment of the disclosure. Fig. 39 is a perspective view of the external follower 161, in accordance with one embodiment of the disclosure. Figures 40-42 are various views of the external follower 161, in accordance with one embodiment of the disclosure. Figures 43-44 are various views of internal follower 162, in accordance with one embodiment of the disclosure.
[00116] Figures 45 and 46 illustrate a side view of the spring cup 160, according to an embodiment. Spring cup 160 can be modeled generally as a cup. A flare or ferrule 199 may be formed along an upper end 173 of spring cup 160. Spring cup 160 may be substantially hollow. Spring cup 160 may have an opening 175 formed at its upper end and may have a tread 176 formed at a lower end 174 thereof. The tread 176 may extend throughout the lower end 174 or may be defined by a ferrule that extends only partially through the lower end 174. Thus, the tread 176 may have an opening, such as a central opening, formed therein.
[00117] The spring cup 160 can be adapted to receive and at least partially nest the second spring 151 therein. Thus, spring cup 160 may have sufficient environment therein to accommodate at least a portion of second spring 151.
[00118] The spring cup 160 may be adapted to receive and nest at least partially in at least a portion of the first spring 150. Thus, the first spring 150 may have at least a portion thereof that is large enough to accommodate the spring cup 160.
[00119] Spring cup 160 may be formed of metal such as steel, aluminum, or titanium. Spring cup 160 can be formed by machining or by forming. For example, spring cup 160 can be formed by stamping steel into a molding die. As a further example, spring cup 160 can be made by forming the outwardly extending ferrule 199, as well as a ferrule extending inwardly enough to define the floor 176, over a section of steel pipe.
[00120] In any of the embodiments disclosed herein, round springs with round cross sections may be used. As those skilled in the art will appreciate, round springs typically weigh less than non-round, eg rectangular, springs of equal strength. However, any desired shape and/or cross-sectional configuration of springs can be used in any desired combination.
[00121] More than three springs can be used if desired. How many desired springs can be used. Using more nested springs can, at least in some cases, make it easier to build a more compact loader.
[00122] Figures 47-58 are various views of housing 101, according to one or more embodiments of the disclosure. These views show the housing 101 of a 100-cartridge magazine 100. A similar housing 101, usually of a different length, can be used for magazines of different capacities. In general, carriers with different capacities will also have a first spring 150, a second spring 151 and a third spring 152 of different lengths to accommodate the different length of the housing 101.
[00123] Figures 59-61 show the partition wall 170 of the magazine 100, according to an embodiment. Divider wall 170 may have a point 171 and a lower end 177. Divider wall 170 may or may not guide first spring 150, second spring 151 and/or third spring 152. Housing 101 may guide first spring 150, the second spring 151 and/or the third spring 152. The partition wall 170 and the housing 101 can cooperate to guide the first spring 150, the second spring 151 and/or the third spring 152.
[00124] The dividing wall 170 can separate cartridges 301 in the lower region 102 of the housing 101 into a first set 381 of columns and a second set 382 of columns therefrom (as shown in figure 18). In one embodiment, the divider wall 170 can only be attached to the housing 101 at the lower end 177 of the partition wall 170, which can attach to a lower plate 110 (Figures 18 and 19) of the housing 101. The partition wall 170 may attach to the plate lower 110 in any way desired. For example, partition wall 170 can attach to bottom plate 110 using spot welding, fasteners (such as screws) and/or adhesive bonding or can be held to the bottom by spring force 150.
[00125] The tip 171 of the partition wall 170 may be disposed in the tapered portion 113 of the housing 101 such that the tip 171 of the partition wall 170 is located close to where the four-column configuration of cartridges 301 merges into the two-column configuration of cartridges 301 (see figures 18 and 19). Tip 171 of divider wall 170 can facilitate separation of cartridges 301 being loaded into magazine 100 into first 381 and second 382 sets thereof, as discussed in detail below. The tip 171 of the divider wall 170 can facilitate the fusing of the cartridges 301 being fed from the lower region 102 into the upper region 103, as discussed in detail below.
[00126] Figures 62-64 are several views of a duplicator (so named because it can approximately double the thickness of a portion, for example, a front wall 141, of the housing 101) or ramp assembly 450, according to a mode of revelation. Two ramps 621 may comprise two substantially cylindrical cutouts formed in a body of the ramp 460. The two ramps 621 may be beveled or sloped portions of the ramp assembly 450 (such as beveled or sloped portions defined by the two cylindrical cutouts, or defined otherwise ). The two ramps 621 may tend to guide a cartridge 301 of the magazine 100 into a chamber of a firearm 1000. The ramp assembly 450 may be attached to the front wall 141 (FIG. 64) of the magazine, according to one embodiment.
[00127] The ramps 621 can be adapted to improve the feeding of cartridges 301 from the magazine 100 into the firearm 1000. More particularly, the ramps 621 can be angled or adapted in such a way that the cartridges 301 slide over them and can be so. guided by them from magazine 100 to firearm 1000. Ramps 621 can extend completely through ramp body 460 (as shown in figure 63). Alternatively, ramps 621 may extend partially through ramp body 460.
[00128] Thus, ramps 621 may tend to facilitate the going of cartridges 301 up from magazine 100 to firearm 1000. The use of such ramps 621 can reduce ammunition failures/jams in the magazine associated with the feeding process. The use of such ramps 621 can improve, for example, improve accuracy, the guide of cartridges 301 magazine 100 for firearm 1000.
[00129] Ramps 621 may comprise a hardened material, such as tempered steel, for durability. The ramps can comprise any material desired.
[00130] According to a modality, two ramps 621 can be provided. The use of two ramps 621 facilitates feeding the cartridges 301 from either side (eg, either of the top two columns) of the magazine 100.
[00131] The ramp assembly 450 can cooperate with the approximately 2° angle of the ferrules 116 and/or the thrust of the cartridges 301 to a simpler row configuration by the upper region 103 of the housing 101, in order to inhibit the locking of the ammunition into the 301 cartridge magazine as the 301 cartridges are fed by the 100 magazine. The approximately 2° angle and simpler row configuration better position the 301 cartridges for feeding and the 450 ramp assembly makes cartridge movement easier 301 as the 301 cartridges are fed. Each of the approximately 2° angle, simpler row configuration of cartridges 301, and ramp assembly 450 can be used alone, without the other(s), if desired.
[00132] According to an embodiment (such as the embodiment of figures 62-64), the ramp body 460 may have a thickness, dimension A of figure 63, which may be approximately twice the thickness, dimension B of figure 64 , of the front wall 141 of the loader 100. Thus, the ramp body 460 may receive the front wall 141 within a cutaway portion 462 of the ramp body 460 so as to further facilitate the attachment of the ramp assembly 450 to the front wall 141 Ramp assembly 450 can be attached to front wall 141 by any desired method. For example, ramp assembly 450 may be tack welded, attached using one or more fasteners (such as screws or rivets), or adhesively bonded to front wall 141.
[00133] Figure 65 shows three cartridges before being compressed by the magazine 100, according to one embodiment of the development. Each of the cartridges 301 touches each of the other two cartridges 301 before the cartridges 301 are compressed.
[00134] Fig. 66 shows three cartridges after being compressed by magazine 100, according to one embodiment of the disclosure. The two 301 cartridges on the right only touch one another of the 301 cartridges (the cartridge on the left). The two 301 cartridges on the right of do not touch each other. The 301 cartridges are in more of a staggered single column configuration compared to the 301 cartridges of Fig. 65. This compression and/or mismatch of the 301 cartridges can continue (and thus be even more exaggerated) until the cartridges are in a single column or are almost in a single column. This compression and/or mismatch of the cartridges 301 can continue as long as desired.
[00135] Fig. 67A shows a portion of magazine 100 that can potentially compress cartridges 301 together, according to an embodiment of the disclosure. The two front portions 671 of the side walls may be spring biased inward so that they can apply pressure inwardly on the cartridges 301. As shown in Fig. 67A, the front portions 671 have not yet compressed the cartridges 301 inward.
[00136] Fig. 67B shows the two front portions 671 of magazine 100 which squeeze cartridges 301 together, according to an embodiment of the disclosure. Portions 671 have moved inwardly so as to compress cartridges 301 inwardly and thus cause cartridges 301 to cross a little, thus angling the nose of upper cartridge 301 upwardly so as to improve feeding of upper cartridge 301 by magazine 100. For example, angling the nose of the top cartridge 301 upward can alleviate the occurrence of ammunition jams in the magazine.
[00137] Referring now to Fig. 67C, the width of the feed ferrule opening can be increased according to an embodiment. To further reduce the removal force, it is desirable to increase the width, C dimension, of the feed ferrule opening for a case loader designed for 5.56 cartridges a little more than the 0.476 inch (12.09 millimeter) maximum it has. been used in the M4/M16 magazines and recommended to NATO as a not-to-exceed dimension for reliable changeover of magazines between the various revolvers. According to modern practice, if this dimension of 0.476 inches (12.09 millimeters) is exceeded, the cartridges will tend to lift (a misfeed which is sometimes called a stack ejection incident) and/or become dislodged from the magazine. Either way, the result will be a malfunction in the food. This is a result of the drag of the breech on the upper cartridge as it moves to the rear which tends to pivot the cartridge on the rear rib which moves the front of the housing body over the adjacent cartridge and away from the front of the feed ferrule. , allowing the front of the body to pivot upward.
[00138] As shown in Fig. 67C, the rear rib 672, where it engages the upper cartridge 301A, extends to the rear wall 673, thereby preventing the cartridge 301A from pivoting on the rear rib as the yoke moves to the rear. Thus, according to an embodiment, the width of the feed ferrule opening, dimension C, may be greater than 0.480 inches (12.19 millimeters) (or 1.27 the diameter of the cartridges), thereby substantially reducing the force of removal.
[00139] Figures 68A-K show a magazine 680 with a short neck 681 according to one or more embodiments of the disclosure. Three of the cartridges 301 defining two interconnected and staggered columns of cartridges 301 are circled (in Fig. 68A). Loader arrangements 680 with a short neck 680 may operate substantially the same as the longer neck arrangements described herein. The neck of the charger can be any desired length.
[00140] A full width (width of four columns all the way to the top of loader 680 or substantially all the way to the top of loader 680) can use a single four-column follower that advances all cartridges throughout. path to the top of loader 680. Alternatively, nested followers can be used as discussed here.
[00141] Both a symmetrical housing and a non-symmetrical housing can be used, for example, for the transition from substantially four columns to substantially two columns, as discussed here. The substantially two-column portion of magazine 680 may contain three cartridges. Alternatively, the substantially two-column portion of magazine 608 may contain more than three of the cartridges 301. For example, the substantially two-column portion of magazine 680 may contain three cartridges, four cartridges, or more than four cartridges. The substantially two-column portion of the magazine may contain any desired number of cartridges 301.
[00142] Figures 69 and 70 show the three upper cartridges 301 being compressed to accelerate the front of the upper cartridge to ensure that it is positioned against the 2° 116 feed ferrules, according to one embodiment of the development. Such compression can generally be done in both longer and short neck modes.
[00143] Figure 71 is a flowchart illustrating the use and operation of the charger 100, according to an embodiment. With particular reference to block 411 of the flowchart, magazine 100 can be loaded with cartridges 301 such that inner follower 162 can be substantially nested within third spring 152, third spring 152 can be substantially nested within outer follower 161, the outer follower 161 can be substantially nested within the second spring 151, the second spring 151 may be substantially nested within the spring cup 160, and the spring cup 160 may be substantially nested within the first spring 150, as shown in Figures 18 , 19 and 30. Cartridges 301 can be separated into two sets, 381 and 382, by dividing wall 170.
[00144] With particular reference to block 412 of the flowchart, cartridges 301 may be fed by magazine 100 into firearm 1000 as firearm 1000 is fired. As cartridges 301 are fed, cartridges 301 within magazine 100 advance therethrough, for example, towards their ferrules 116. Such feeding typically occurs after a cartridge 301 held within a chamber of firearm 1000 is fired in such a way as to cause the breech of firearm 1000 to retract. As the breech moves back towards the chamber, it removes upper cartridge 301A from magazine 100 and moves upper cartridge 301A into the chamber.
[00145] After the upper cartridge 301A has been fed into the firearm 1000 and when one or more cartridges 301 remain in the lower region 102 of the magazine 100, then the outer follower 161 and the inner follower 162 move together substantially as a unit , toward the upper end 112 of the magazine 100. The first spring 150 and the second spring 151 expand to move the outer follower 161 and the inner follower 162 toward the upper end 112 of the magazine 100. As the outer follower 161 and inner follower 162 move towards the upper end 112 of magazine 100, they likewise move cartridges 301 held within magazine 100 upward.
[00146] In this way, a new upper cartridge 301A is defined. This new upper cartridge 301A can be held inside the magazine 100 by one of the ferrules 116 until the firearm 1000 is fired again and the upper cartridge 301A is again fed into the firearm 1000. In general, each successive upper cartridge 301A will remain on a different side of magazine 100. That is, the top cartridges 301A will switch from left to right, and vice versa, as is done according to modern practice in the M4/M16 family of firearms. This process can be repeated until all cartridges 301 have been fed from the lower region 102 of magazine 100 into firearm 1000.
[00147] With particular reference to block 413 of the flowchart, after all the cartridges 301 have been fed from the lower region 102 of the magazine 100 into the firearm 1000, then the cartridges 301 may be fed from the upper region 103 of the magazine 100 into the weapon 1000. Cartridges 301 can be fed from the upper region 103 of magazine 100 by inner follower 162, which can substantially separate from follower 161 when outer follower 161 makes contact with stops of outer follower 121 and is thus prevented from moving. if further up.
[00148] As the internal follower 162 moves the cartridges 301 upwards into the magazine 100, new cartridges 301 become the upper cartridge 301A and can thus be made available to be fed into the firearm 1000, as discussed above. Internal follower 162 may continue to move cartridges 301 upward until the last cartridge 301 is fed into firearm 1000.
[00149] Figures 20-25 are cross-sectional views of magazine 100 showing magazine 100 partially filled with cartridges 301, according to an embodiment. For example, the magazine 100 can be configured in this way when it has been partially loaded or has previously been fully loaded and some of the cartridges 301 have been ignited. The various states or configurations of charger 100 as it is charged and/or fired are further discussed here in detail with reference to figures 20-27.
[00150] Figures 2-17 and 47-57 show the housing 101 of the loader 100, according to various embodiments. As mentioned above, housing 101 may comprise a sheet metal. With particular reference to Fig. 53, the housing 101 may be formed to comprise a sheet metal wrap portion or front wall 141 that at least partially surrounds the side walls 142. The wrap may define either a portion or substantially the entire wall. front 141 of housing 101.
[00151] According to one embodiment, the side walls 142 may extend to the rear of the housing 101 and cooperate to define a rear wall 143. The front wall 141 and the side walls 142 may be attached to each other at overlaps 144. Front wall 141 and side walls 142 can be attached to each other using any desired method. For example, front wall 141 and side walls 142 can be attached to each other using spot welding, using fasteners (such as screws) and/or using adhesive bonding. Various other configurations of housing 101 are contemplated.
[00152] According to one embodiment, depressions 145 may be formed in housing 101. Such depressions may define rails 146 within housing 101. Rails 146 may be adapted in such a way that cartridges 301 roll over them. In this way, friction associated with movement of cartridges 301 within housing 101 can be substantially alleviated. Various configurations of rails 146 are contemplated. For example, the depressions 145 and hence the rails 146 can be generally parallel, as shown in figures 52 and 53, which are also located in both the upper two-column section and the lower four-column section to confine and guide the round springs of both sections. Alternatively, the rails can be completely non-parallel or they can have non-parallel portions.
The rails 146 may be adapted to make the upper region 103 narrower as the cartridges 301 move further upward and/or may be adapted to apply pressure inwardly on the cartridges 301 as the cartridges 301 move upwards with the upper region 103. Thus, the tracks 146 can urge the substantially two columns of cartridges 301 of the upper region 103 into a substantially single column configuration, as discussed above.
[00154] Internal follower 162 may comprise surfaces 165 and 167 (shown in Figures 28 and 30) on which cartridges 301 may be substantially supported. The inner follower 162 may comprise a pillar 182 (Figures 33-35) which may be adapted to be received within the complementary web 163 of the outer follower 161.
[00155] The external follower 161 may comprise surfaces 168 and 169 (shown in figures 28 and 30) on which cartridges 301 may be supported. Outer follower 161 may comprise a web 163 which may be adapted to receive complementary pillar 182 of inner follower 162.
[00156] According to an embodiment, the configuration of four crossed cartridges of the lower region 102 can be divided into two sets 381 and 382 by the dividing wall 170. Each of the two sets, 381 and 382, can be substantially two crossed cartridges 301 . In order for the cartridges 301 of the two sets, 381 and 382, to fuse readily and reliably, the two sets, 381 and 382, can be displaced approximately the diameter of the cartridge relative to one another. In this way, each individual cartridge 301 can be displaced approximately / the diameter of the cartridge where the two sets, 381 and 382, merge. Such a fusion ensures that two cartridges 301, one from each set, 381 and 382, do not enter the upper region 103 at substantially the same time, so as to result in a jam. Instead, cartridges 301 alternate between sets, 381 and 382, as cartridges 301 fuse in the upper region 103 of magazine 100.
[00157] The displacement of approximately ^ of the diameter of the cartridge between sets, 381 and 382, can be provided by positioning the surfaces 166, 168 and 169 of the outer follower 161, as well as the surface 167 of the inner follower 162 in order to provide this displacement . Thus, as cartridges 301 rest on surfaces 166, 167, 168 and 169, there is displacement of approximately ^ of the cartridge diameter between sets, 381 and 382, and displacement of approximately / of the cartridge diameter between cartridges 301 within of sets 381 and 382.
[00158] Note that a gap of ^ of the diameter of the cartridge 387 may be formed between the surface 165 of the inner follower 162 and the cartridge 301C immediately above. Thus, the cartridge 301C does not rest on the surface 165 until the inner follower 162 moves up out of the outer follower 161 near the upper region 103 of the magazine 100. The last cartridge support surface 165 of the inner follower is the support surfaces of the last cartridge 166 of the outer follower can independently lift the last cartridge 301C and are configured to pass through one another.
The nested diameter step/gap of cartridge 387 allows displacement of ^ diameter of the cartridge between assemblies 381 and 382 and enables opposing walls 113A and 113B of tapered portion 113 to be substantially symmetrical with respect to one another. In this case, the opposing walls 113A and 113B work in conjunction with the followers to control and coordinate the spacing of the cartridges 301 as the two assemblies 381 and 382 merge. Approximately one diameter of the clearance cartridge, dimension D, is provided where the cartridges 301 pass between the dividing wall 170 and the housing 101 at transition 113.
[00160] Figure 29 illustrates another configuration of a charger 100A, according to an embodiment. The left side of both sets, 381 and 382, of cartridges 301 are in line with each other and the right side of both sets, 381 and 382, are in line with each other, surface 169 of the four-column follower and the surface 167 of the two-column follower are not displaced relative to each other (they are substantially in line with each other). To ensure that the cartridges 301 fuse, the two column section with an offset um cartridge diameter, the cartridge offset o diameter required to fuse in the upper two column section is achieved by an asymmetric configuration of the tapered portion 113 in accordance with this mode. Thus, opposing walls 113A and 113B are offset by the diameter of the cartridge and cooperate with the followers to control and coordinate the spacing of the cartridges 301 as the two assemblies, 381 and 382, merge.
[00161] This embodiment of the charger 100A can be contrasted with the embodiment of figure 28 as follows. The displacement of approximately ^ of the diameter of the cartridge between sets, 381 and 382, does not exist in the embodiment of Fig. 29 and, by adapting generally opposite walls 113C and 113D so as to be offset or asymmetrical with respect to one another, the two sets 381 and 382 are in line with each other. For example, wall 113C may be approximately Yz of the diameter of the cartridge less than opposite wall 113D. In this way, cartridges 301 of the two columns can be guided by opposing walls 113C and 113D in such a way that cartridges 301 fuse together like interlocking gear teeth and thus can be substantially less likely to jam. The additional height of wall 113D results in additional clearance between it and the dividing wall (in this case 0.19 more cartridge diameter of clearance) to provide dimension E, resulting in less cartridge control in this area.
[00162] Walls 113C and 113D can define symmetrically cam surfaces that move or cam action the cartridges 301 inwards (toward the dividing wall 170) so as to make the four cartridge columns 301 of the lower region 102 become the two columns of cartridges 301 of the upper region 103.
[00163] As the cartridges 301 rest on surfaces 165, 167, 168 and 169, the cartridges 301 need not be positioned with an offset of approximately ^ of the cartridge diameter between sets, 381 and 382, but instead Furthermore, they can be substantially in line with each other. In this case, no gap need be formed (corresponding to gap 387 of Figure 28) between surface 165 of inner follower 162 and cartridge 301G immediately above it. Thus, cartridge 301C may rest on surface 165 before inner follower 162 moves away from outer follower 161 near upper region 103 of magazine 100. In this case, cam surfaces may be at different heights above lower end 111 of magazine 100 (and hence with respect to tip 171 of partition wall 170) approximately Y of the cartridge diameter so as to effect the desired positioning of cartridges 301 as cartridges 301 fuse.
[00164] Aspects of both the embodiment of Figure 28 and the embodiment of Figure 29 can be combined to provide the desired spacing of the cartridges 301 as the two sets, 381 and 382, fuse. For example, both the positioning of surfaces 165, 169, 167 and 168 and the position of opposing walls 113A and 113B can contribute to providing the desired cartridge diameter displacement Yz as the cartridges 301 fuse.
[00165] Referring again to figures 18-27, the operation of charger 100 is discussed in more detail below. Figures 26 and 27 show magazine 100 empty, for example, not containing cartridges 301, figures 18-19 show magazine 100 filled with cartridges 301, and figures 20-25 show magazine partially filled with cartridges 301.
[00166] The magazine 100 can be filled with 301 cartridges either by hand, either with or without the use of a tool (eg such as a modern tool for loading magazines with 301 cartridges) or by a machine. Magazine 100 can be filled with cartridges 301 either by the provider of magazine 100 (for example, such as an arsenal, warehouse, or factory), in the field, or at any other desired location.
[00167] As cartridges 301 are loaded into loader 100, cartridges 301 can be positioned first on inner follower 162. Cartridges 301 can be positioned only on inner follower 162 and not on outer follower 161 before the inner follower 162 has been pushed down a sufficient distance to engage (substantially nest) outer follower 161. Figures 20 and 21 show outer follower 161 and inner follower approximately in the position where snapping occurs.
[00168] Before fitting the inner follower 162 and outer follower 161, the configurations (particularly the heights) of the stepped upper surfaces 165 and 167 (shown in figure 30A) of the inner follower 162 can determine the configuration of the cartridges 301 arranged within the charger 100.
[00169] With particular reference to figures 20 and 21, after the engagement of the inner follower 162 with the outer follower 161 and, as more cartridges 301 are loaded, the cartridges 301 can be positioned on either the inner follower 162 or the follower outer follower 161. Thus, after engagement of inner follower 162 with outer follower, both inner follower 162 and outer follower 161 can cooperate to determine the relative heights or vertical relationships of cartridges 301 with respect to one another. During mating of the inner follower and outer follower, the support surface of the last cartridge 165 of the inner follower passes through the support surfaces of the last cartridge 166 of the outer follower, thus transferring the support of the last cartridge 301C from the inner follower to the outer follower . After the engagement of the inner follower 162 and the outer follower 161, the configurations (particularly the heights) of the stepped top surfaces 166, 168 and 169 of the outer follower 161 and the top surface 167 of the inner follower 162 can determine the configuration of the disposed cartridges 301 inside magazine 100. After inner follower 162 engages outer follower 161, then cartridges 301 begin to be divided into two mismatched sets, 381, 382, (shown in figure 18) of them by dividing wall 170.
[00170] With particular reference to Figures 20 and 21, as cartridges 301 are loaded into magazine 100, cartridges 301 may be guided by dividing wall 170 to one of two sets, 381, 382, or columns of cartridges 301 in either side of the divider wall 170. Cartridges 301 that are biased to the left of the divider wall 170 can be guided to the left of the divider wall 170 as these cartridges 301 make contact with the tip 171 of the divider wall 170. Cartridges 301 that are right biases of partition wall 170 can be guided to the right of partition wall 170 as these cartridges 301 make contact with tip 171 of partition wall 170. If a particular cartridge 301 is biased to the left or right it can depends on its position (whether it is positioned to the left or to the right) as that cartridge 301 approaches the tip 171 of the partition wall 170.
[00171] With particular reference to Figures 18-27, the magazine 100 can be filled with cartridges 301 so as to compress the first spring 150, the second spring 151 and the third spring 152. When the magazine 100 is completely filled with cartridges 301 , the inner follower 162 may be substantially nested within the third spring 152, the third spring may be substantially nested within the outer follower 162, the outer follower 162 may be substantially nested within the second spring 151, the second spring 151 may be substantially nested within the spring cup 160, and the spring cup 160 can be substantially nested within the first spring 150. By virtue of these various features, such as the nesting aspects of the modality, the length of the carrier 100 required to accommodate the first spring 150 , the second spring 151 and the third spring 152 is substantially shortened and need not be as large as it would otherwise be required for a high loader. ta capacity like this.
[00172] Nesting inner follower 162 at least partially within outer follower 161 facilitates cooperation of inner follower 162 and outer follower 161 to define a single combined follower assembly that moves cartridges 301 toward upper end 112 of housing 101 Nesting inner follower 162 at least partially within outer follower 161 also facilitates the independent operation of inner follower 162 to move cartridges 301 toward upper end 112 of housing 101 without corresponding movement of outer follower 161.
[00173] An upper cartridge 301A and therefore all other cartridges 301 can be held in place by the ferrules 116. The upper cartridge 301A can be moved in such a way that it slides from the magazine 100 as the upper cartridge 301 is fed in firearm 1000.
[00174] When the dog of the firearm 1000 is cocked and each time the firearm 1000 is fired, the upper cartridge 301A can be fed by the magazine 100 in the firearm 1000. When there are cartridges 301 kept in the lower region 102 of the housing 101 and the upper cartridge 301A is powered by the magazine 100, then the first spring 150 and/or the second spring 151 expand to push all the remaining cartridges 301 out of the lower end 111 of the housing 101 and towards it. upper end 112, so that the next upper cartridge 301A (for example, the cartridge 301 following the previously fed upper cartridge 301A) can be held in place again by the ferrules 116.
[00175] As the firearm 1000 is fired, the first spring 150 and/or the second spring 151 may continue to expand and push all cartridges 301 towards the upper end 112 of the magazine until the stepped upper surfaces 168 and 169 of the outer follower 161 make contact with the outer follower stops 121. When the stepped top surface 168 and 169 of the outer follower 161 makes contact with the outer follower stops 121, all cartridges 301 of the lower 102 region of the housing 101 move to outside the lower region 102. Some of the cartridges 301 of the lower region 102 may remain in the upper region 103, as shown in Figure 24.
[00176] After the stepped upper surfaces 168 and 169 of the outer follower 161 make contact with the outer follower stops 121 and some cartridges 301 still remain in the upper region 103, then the third spring 152 may expand to move the remaining cartridges 301 outward from the lower end 111 of the housing 101 and toward the upper end 112 of the housing 101. The third spring 152 may continue to expand and move the cartridges 301 toward the upper end 112 until the last cartridge 301 is fed into the gun. fire 1000 and the inner follower 162 make contact with the inner follower stops 122. During separation of the inner follower from the outer follower, the support surface of the last cartridge 165 of the inner follower passes through the support surface of the last cartridge 166 of the outer follower , thus transferring the last cartridge holder 301C from the outer follower to the inner follower.
[00177] With particular reference to Figures 24 and 25, the magazine 100 is shown when all cartridges 301 have been emptied from the lower region 102 of the housing 101 and the upper region 103 is still filled with cartridges 301 (which were previously in the lower region 102 ). In this configuration, outer follower 161 has ceased upward movement and inner follower 162 can now continue to move cartridges 301 toward upper end 112 of housing 101.
[00178] More particularly, outer follower 161 has ceased upward movement because its stepped upper surfaces 168 and 169 have made contact with the stops of outer follower 121. Inner follower 162 is still free to move upwards, toward to the upper end 112 of the housing 101.
[00179] The combination of the first spring 150 and the second spring 151 may be stronger than the third spring 152. Therefore, the third spring 152 may remain substantially completely compressed until the upward movement of the outer follower 161 is stopped by the stops of the outer follower 121. After the upward movement of outer follower 161 has been stopped, then the third spring 152 may be freed to expand so as to continue moving cartridges 301 towards the upper end 112 of housing 101 and thus feeding cartridges 301 in firearm 1000.
[00180] According to an embodiment, the third spring 152 may be substantially weaker than the first spring 150 and/or the second spring 151 such that the greater force provided by the third spring 152, such as when compressed, can be less than the smallest force provided by the first spring 150 and/or the second spring 151, such as when inflated and expanded. In this way, the third spring 152 can expand only after the first spring 150 and/or the second spring 151 have ceased to expand.
[00181] The first spring 150 and the second spring 151 may have substantially equal strengths. Alternatively, the first spring 150 and the second spring 151 may have substantially different strengths. Third spring 152 may be substantially weaker than the combined strength of first spring 150 and second spring 151.
[00182] As can be seen from Figures 18-25, divider wall 170 separates cartridges 301 into two sets, 381 and 382. One set 381 may be to the left of divider wall 170 and one set 382 may be to the left. right of the partition wall 170, as discussed above. Cartridges 301 of the two sets, 381, 382, may fuse close to the tapered portion 113 after passing through a tip 171 (eg, upper end) of the dividing wall 170. The tip 171 defines the point at which the two sets, 381, 382, merge one with another. Thus, cartridges 301 of the lower region 102 move to the upper region 103 in such a way that cartridges 301 of the four-cross-cartridge configuration fuse to form the two-cross-cartridge configuration.
[00183] Furthermore, the cartridges 301 on one side of the dividing wall 170 can move together with the cartridges 301 on the other side of the dividing wall 170 in such a way that both sets of cartridges 301 can be at least slightly synchronized in their movement. This synchronization can favor the fusion of the two sets of cartridges 301. One set of cartridges 301 can be displaced relative to the other set of cartridges 301 by the stepped upper surfaces 166, 168 and 169 in order to further improve their fusion, as discussed on here. In this way, the inefficient feeding or jamming of cartridges 301 as they melt can be substantially alleviated.
The mixing of the double staggered columns of cartridges 301 above the substantially nested outer follower 161 and inner follower 162 inhibits independent upward movement of outer follower 161 and inner follower 162 before outer follower 161 ceases to expand.
[00185] As shown in Figure 30A, the housing 101 may comprise the lower plate 110 that defines a bottom of the housing. Bottom plate 110 may be removable to facilitate maintenance, for example cleaning, lubrication, removal and replacement of parts, of internal components of loader 100. For example, tabs 131 that form near the lower end 111 of housing 101 may be formed to hold the lower plate 110 in position.
[00186] Other modalities are also contemplated. For example, although the upper region 103 of magazine 100 is illustrated in the figures and described here as a two-column staggered configuration, the upper region 103 may have a single-column configuration in another embodiment. For example, the two columns can be pushed into a single column before the cartridges 301 reach the top end 112 of the housing 101. The top region 103 of the magazine 100 can be configured to have any desired number of columns.
[00187] As another example, instead of implementing the dividing wall 170 as an independent dividing wall illustrated in the figures and described here, the dividing wall 170 may alternatively be a non-independent vertical dividing wall configured to separate the cartridges 301 into two sets . For example, the dividing wall can comprise two separate portions. A portion of the partition wall may be attached to the front wall 203 of the housing 101 and extend substantially therealong in the lower region 102 of the housing 101, and another portion of the partition wall may be attached to the rear wall 202 of the housing 101 and extend. is substantially along it in the lower region 102 of the housing. A gap can be formed between the two portions such that the springs and followers move within the gap in a manner similar to the magazine disclosed in U.S. Patent 4,589,218.
[00188] Advantageously, high capacity magazines implemented according to the various modalities described here typically require less frequent reloading than conventional smaller capacity magazines and thus tend to better ensure that a firearm will be ready for use when needed. Certainly, having a firearm that is ready to use can save lives in many battlefield, police, and other situations.
[00189] Also, the high capacity loader modalities disclosed here can provide greater capacities than conventional box loaders without sacrificing reliability. In this regard, substantially stronger springs are not required, and the springs are not compressed to a point where they are likely to interfere with the intended operation of the firearm. The round springs disclosed here are less likely to take a set when the charger remains fully charged for an extended period of time. Thus, a high-capacity charger is provided that is reliable, simple in construction, and relatively inexpensive.
[00190] Where applicable, the various components presented herein may be combined into mixed components and/or separated into subcomponents without departing from the spirit of the present disclosure. Similarly, where applicable, the order of the various steps described herein can be changed, combined into mixed steps, and/or separated into sub-steps to provide the features described herein.
Cartridge columns may be referred to herein as "substantially" with a given width in that the columns can be overlapped or staggered in such a way that the widths are not necessarily well defined. For example, "substantially four columns of cartridges" can refer to four columns of cartridge that do not overlap at all or that overlap each other substantially in such a way that the columns are staggered.
[00192] Cartridge columns and/or the cartridges themselves can be referred to here as interconnected and/or staggered when there is a certain overlap between the columns and/or cartridges. When two cartridges in one column and one cartridge in another column are configured in such a way that each cartridge makes contact with the other two cartridges, then there is some overlap between the columns and the cartridges. Thus, columns and cartridges can be referred to as interconnected and/or staggered.
[00193] When a number of columns is referred to here (such as when referring to the "two-column region" and the "four-column region"), such reference may be inferred as with respect to "substantially" that number of columns because of their mismatch and/or interconnection. Thus, referring to a "two-column region" or referring to a "four-column region" may be the same as referring to a "substantially two-column region" or referring to a "region substantially four-column”. That is, the terms a "two-column region" and "four-column region" can be used interchangeably with a "substantially two-column region" and a "substantially four-column region" and can have the same meaning.
[00194] As used herein, the terms "removal force" may refer to the force that is applied by a breech of a firearm on a cartridge of a magazine in order to feed the magazine cartridge into the firearm. . When insufficient removal force is provided, this can result in a stop.
[00195] Various modalities can use various features described here. Thus, a given modality can use any desired combination of such features.
[00196] According to an embodiment, the lower section can accommodate two double staggered columns and a dividing wall between the cartridge contact surfaces of the side walls. The top section can accommodate a double staggered column without dividing wall and terminates in either a single or double feed position. The transition section can guide all cartridges to a single feeding position without forming them into a double staggered column. The transition section can have cartridge contact surfaces shaped so that the upward flow of the double staggered columns of cartridges reforms from two double staggered columns to two single columns that then form into a double staggered column and then both end at a position of single and double feeding.
[00197] The front and rear walls of at least the bottom section may be curved to approximately fit the taper of the cartridge. Cartridge mating surfaces on the side walls of one or all of the magazine sections may make contact with the cartridge body. Cartridge contact surfaces on the side walls of one or all of the magazine sections can be configured in such a way that the shoulders, necks, or projectiles of the cartridges generally do not make contact with the side walls of the magazine.
[00198] According to an embodiment, a loader may comprise a plurality of followers and at least three springs adapted to move the followers. Followers and springs can be adapted to facilitate fusing substantially four columns of cartridges into substantially two interconnected and staggered columns of cartridges to accelerate movement of the cartridges and attenuate the force required to remove the cartridges from the magazine.
[00199] The plurality of springs may comprise three springs. The plurality of followers can comprise two followers. The loader may further comprise a spring cup disposed substantially intermediate the base of two of the springs. The spring cup can be adapted to facilitate at least partial nesting of the base of the two springs.
[00200] The substantially two interconnected and staggered columns may comprise at least one of the cartridges in one column and at least two of the cartridges in another column. The followers can be adapted to nest at least partially with each other and at least two of the springs can be adapted to nest at least partially with each other. The three springs can be adapted to at least partially nest into each other.
[00201] The magazine may further comprise a housing and a dividing wall with a base and adapted to separate the cartridges into two sets of cartridges. The partition wall can be held in the housing only at the base of the partition wall (such as by means of one of the springs).
[00202] The loader may additionally comprise a housing within which the followers and springs are substantially disposed. Housing can have a wider bottom region and a narrower top region. A divider wall may have a base and may be adapted to separate the cartridges into two sets thereof in the lower region, whereby the divider wall may be held in the housing only at the base of the divider wall. Followers may comprise an outer follower and an inner follower and the inner follower may be adapted to nest at least partially within the outer follower. The inner follower can be adapted to separate from the outer follower to enter the upper region of the housing. The springs can be adapted to nest at least partially within one another. One spring can move the inner follower and outer follower when the inner follower and outer follower are in the lower region and the other spring can move the inner follower when the inner follower is in the upper region. The housing, the followers, the springs and the dividing wall may be adapted to cooperate to fuse the substantially four columns of cartridges into the substantially two interconnected and staggered columns of cartridges.
[00203] According to an embodiment, a loader may comprise at least three springs adapted to at least partially nest one inside the other. The loader may additionally comprise a dedicated follower for each of the two springs. Each dedicated follower can be adapted to move by its associated spring.
[00204] The charger may additionally comprise a partition wall. The springs can be adapted to receive the partition wall through them. The springs can comprise round springs. The springs may comprise an inner spring and an outer spring which is adapted to nest at least partially within the inner spring. The outer spring can be substantially stronger than the inner spring.
[00205] According to an embodiment, a weapon system may comprise a firearm and a magazine for providing cartridges to the firearm. The charger can be detachably attachable to the firearm. The magazine may comprise a housing having an upper end and a lower end substantially opposite the upper end. An external follower can be mobile arranged within the housing. An inner follower may be mobile arranged within the housing and adapted to nest at least partially within the outer follower. A first spring and a second spring may be disposed within the housing and may be adapted to move the outer follower out of the lower end of the housing. A third spring may be disposed within the housing and adapted to move the inner follower out of the outer follower and towards the upper end of the housing. The third spring can be adapted to nest at least partially within the outer follower. The first spring, the second spring and the third spring can be adapted to expand to move the cartridges into the firearm.
[00206] The weapon system may further comprise a spring cup disposed substantially between the first spring and the second spring. The spring cup can be adapted to facilitate at least partial nesting of the first spring and second spring. According to an embodiment, a box loader can have three or more springs.
[00207] According to an embodiment, a four-by-two-column loader may have a four-column follower connecting both sides of a dividing wall, and the transition zone may be symmetrical. According to one embodiment, a four-column loader (with two staggered double columns) can fuse cartridges into two columns, wherein, in the four-column section, the two staggered double columns of cartridges are offset ^ of the cartridge diameter.
[00208] According to an embodiment, a four-column magazine may have a two-column follower that advances the two columns of ammunition in the two-column portion of the magazine, wherein the follower only supports/advances one column when the follower column is in the four column section. According to one embodiment, in a four-column magazine, the cartridges are offset ^ of the cartridge diameter in the upper two-column section and in the four-column section there are two interconnected double columns which are offset ^ of the diameter of the cartridge. cartridge.
According to one embodiment, a dual column box loader has spring-loaded surfaces that force the columns together as they approach the feed ferrules. According to one embodiment, a dual column box loader has spring loaded surfaces that force the fronts of the two columns together as they approach the feed ferrules. According to one embodiment, a dual column box loader has spring-loaded surfaces that force the columns together as they approach the feed ferrules, and the feed ferrules are angled approximately two degrees with respect to one perpendicular to a rear wall of the charger.
[00210] According to an embodiment, a case loader has surface-hardened feed chutes formed in an insert attached to the front wall. Feed ramps are durable and can improve feed reliability.
[00211] According to an embodiment, a box loader may have a straight section adapted to fit the chamber of the M4/M16 straight loader. The charger can include two curved sections. The first curved section may be adjacent to the straight section and may be substantially smaller (have a tighter curve) than the curve defined by a column of tapered cartridges. When this curve reaches the natural angle of the ammunition such that the cartridges are generally perpendicular to the rear wall of the magazine, a second curve that matches the natural curve of the tapered cartridge shells can be provided so that all curves in this section are generally perpendicular to the back wall. The first curve can be tangent to both the straight section and the second curve.
[00212] According to an embodiment, a case loader has one or more round springs which are guided by the ribs of the case. According to one embodiment, a box magazine is adapted to fit a 5.56 cartridge magazine M4/M16 chamber with a feed ferrule opening that is greater than 0.480 inch (12.19 millimeters). According to one embodiment, a case loader is adapted to fit a 5.56 cartridge magazine M4/M16 chamber and a cartridge guide surface extends to the rear wall for the upper ammunition at the feed location.
[00213] According to an embodiment, a magazine has a cartridge guide surface that extends to the rear wall for the upper ammunition at the feed location and the feed ferrule opening is greater than 1.27 cartridge diameter . According to one embodiment, a magazine comprises a housing adapted to facilitate the merging of four columns of cartridges into two interconnected and staggered columns of cartridges, and the magazine terminates in a double or single feed position.
[00214] According to an embodiment, a loader comprises a housing adapted to facilitate the merging of four columns of cartridges into two single columns divided of cartridges and terminate in a double feed position. According to one embodiment, a loader comprises a housing adapted to facilitate the merging of four columns of cartridges into two simple split columns of cartridges and terminate in a single feed position and the transition section is symmetrical.
[00215] According to an embodiment, a loader comprises a housing adapted to facilitate the merging of four columns of cartridges into two single split columns of cartridges and then form the cartridges into a double staggered column ending in a double feed position. According to one embodiment, a loader comprises a housing adapted to facilitate fusing four columns of cartridges into two split single columns of cartridges and then forms the cartridges into a double staggered column that terminates in a single feed position. According to one embodiment, a loader comprises a housing adapted to facilitate fusing four columns of cartridges in a single feed position without forming the cartridges into a double staggered column, wherein the four-column follower connects both sides of the wall divider.
[00216] According to an embodiment, a loader comprises a plurality of rails and a round spring that is at least partially guided by the rails. Under one embodiment, a box magazine has cartridge contact surfaces on the side walls of one or all sections thereof that make contact with the cartridge body diameter and the cartridge shoulders, necks, and/or projectiles do not. contact with the side walls. A magazine section can be configured to contain substantially four columns of cartridges.
[00217] According to an embodiment, a case loader has cartridge contact surfaces on the side walls of one or all sections thereof that make contact with the diameter of the cartridge body and do not make contact with the shoulders, necks or projectiles from the cartridges, and the cartridges are bottleneck type. A magazine section can be configured to contain substantially four columns of cartridges.
[00218] Modalities described above illustrate, but do not limit, the disclosure. It is also to be understood that numerous modifications and variations are possible in accordance with the principles of the present disclosure. Thus, the scope of the invention is defined only by the following claims.

权利要求:
Claims (31)
[0001]
1. Carrier, characterized by the fact that it comprises: an external follower; an inner follower adapted to nest at least partially within the outer follower; wherein the outer follower is adapted to cooperate with the inner follower to support four columns of cartridges when the outer follower and inner follower are nested such that the outer follower supports three of the four columns of cartridges, and the inner follower supports one of the four columns of cartridges when outer follower and inner follower are nested; and wherein the inner follower is adapted to support two columns of cartridges when the outer follower and inner follower are not nested.
[0002]
2. Loader according to claim 1, characterized in that when the outer follower and the inner follower are nested: one of the columns of cartridges supported by the outer follower is secured by the outer follower above a first surface of the inner follower by a span of ^ the diameter of the cartridge.
[0003]
3. Loader according to claim 1, characterized in that when the outer follower and the inner follower are not nested: the first surface of the inner follower is adapted to close the opening and contact at least one of the cartridges.
[0004]
4. Loader according to claim 1, characterized in that two of the four columns of cartridges are displaced with respect to two of the four columns of remaining cartridges by a distance of ^ of the diameter of the cartridge.
[0005]
5. Loader according to claim 1, characterized in that one of the two columns of cartridges is displaced with respect to one of the two remaining cartridge columns by a distance of ^ of the diameter of the cartridge.
[0006]
6. Loader according to claim 1, characterized in that it comprises a housing configured to facilitate fusion of the four columns of cartridges in the two columns of cartridges.
[0007]
A loader according to claim 6, characterized in that the housing includes a short neck portion and wherein each of the two columns of cartridges include only one cartridge interconnected on each side of the short neck portion.
[0008]
8. Loader according to claim 6, characterized in that the housing includes a short neck portion adapted so that the cartridges terminate in a double-feed position, wherein the two columns include at least one cartridge in a column and at least one cartridge in another column.
[0009]
9. Loader according to claim 8, characterized in that it further comprises a dividing wall, having an upper end, wherein minimum distances between the upper end of the dividing wall and opposite sides of the housing are equal and a cartridge diameter, and wherein each of the two columns of cartridges includes only one cartridge interconnected on either side of the short neck portion.
[0010]
10. Loader according to claim 6, characterized in that it further comprises a dividing wall, having an upper end, wherein minimum distances between the upper end of the dividing wall and opposite sides of the housing are equal and a cartridge diameter, and wherein each of the two columns of cartridges includes a plurality of cartridges interconnected in a two-column portion of the housing.
[0011]
11. Loader according to claim 1, characterized in that it further comprises: a housing with an upper end and a lower end; a spacer movably disposed within the housing; a first spring disposed between the lower end of the housing and the spacer and adapted to move the spacer away from the lower end of the housing; a second spring disposed between the spacer and the outer follower and adapted to move the outer follower out of the spacer; a third spring disposed between the inner follower and the outer follower and adapted to move the inner follower away from the outer follower; and wherein the third spring is adapted to nest at least partially within the second spring, the second spring is adapted to nest at least partially within the first spring, and the first, second and third springs are adapted to expand to move the cartridges.
[0012]
12. Firearm, characterized in that it comprises the magazine as defined in claim 1.
[0013]
13. Method, characterized in that it comprises the steps of: nesting an internal loader follower at least partially within an external loader follower; during nesting, support four columns of cartridges with the outer follower and the inner follower, where the outer follower supports three of the four columns of cartridges and the inner follower supports one of the four columns of cartridges; move the inner follower out of the outer follower; and following the movement, support two columns of cartridges with the internal follower.
[0014]
14. Method according to claim 13, characterized in that supporting four columns of cartridges comprises securing, with the external follower, one of the columns of cartridges supported by the external follower above a first surface of the internal follower by a gap of ^ of a cartridge diameter.
[0015]
15. Method according to claim 13, characterized in that moving comprises closing the opening and contacting at least one of the cartridges with the first surface of the internal follower.
[0016]
16. Method according to claim 13, characterized in that two of the four columns of cartridges are displaced with respect to two of the four columns of remaining cartridges by a distance of ^ of the diameter of the cartridge.
[0017]
17. Method according to claim 13, characterized in that one of the two columns of cartridges is displaced with respect to one of the two remaining cartridge columns by a distance of ^ of the diameter of the cartridge.
[0018]
18. Method according to claim 13, characterized in that it comprises fusing the four columns of cartridges into the two columns of cartridges, using a magazine housing.
[0019]
19. Method according to claim 18, characterized in that the housing includes a short neck portion and in that, following fusion, the two columns of cartridges include only one cartridge interconnected on each side of the neck portion I enjoy.
[0020]
20. The method of claim 18, further comprising terminating the cartridges in a double feed position using the housing, wherein the two columns include at least one cartridge in one column and at least one cartridge in the other column.
[0021]
21. Method according to claim 20, characterized in that the magazine includes a partition wall, having an upper end, wherein minimum distances between the upper end of the partition wall and opposite sides of the housing are equal and a cartridge diameter , and wherein each of the two columns of cartridges includes only one cartridge interconnected on either side of the short neck portion.
[0022]
22. Method according to claim 18, characterized in that loader is a dividing wall, having an upper end, wherein minimum distances between the upper end of the dividing wall and opposite sides of the housing are equal and a cartridge diameter, and wherein each of the two columns of cartridges includes a plurality of cartridges interconnected in a two-column portion of the housing.
[0023]
23. Method according to claim 13, characterized in that the loader includes a housing with an upper end and a lower end, a spacer, a first spring disposed between the lower end of the housing and the spacer, a second spring disposed between the spacer and the outer follower, and a third spring disposed between the inner follower and the outer follower, the method further comprising: moving the spacer out of the lower end of the housing with the first spring; move the outer follower out of the spacer with the second spring; nesting the third spring at least partially within the second spring; nesting the second spring at least partially within the first spring; expanding the first, second, and third springs to move the cartridges; and wherein, moving the inner follower out of the outer follower comprises moving the inner spacer out of the outer spacer with the third spring.
[0024]
24. Method according to claim 13, characterized in that it further comprises providing the cartridges for the firearm using the external follower and the internal follower.
[0025]
25. Charger, characterized in that it comprises: a housing adapted to attach to a firearm; a dividing wall within the housing and adapted to separate cartridges into two sets of cartridges; an outer follower and an inner follower adapted to move and coordinate advancement of the two sets of cartridges, wherein the outer follower and inner follower are adapted to nest at least partially together with the dividing wall passing therethrough; at least one spring adapted to move the followers; wherein the housing, outer follower, and inner follower are adapted to coordinate fusing four columns of cartridges into two interconnected and staggered cartridge columns to accelerate movement of the cartridges and mitigate a force required to remove the cartridges from the magazine.
[0026]
26. Loader according to claim 25, characterized in that the two interconnected and staggered columns of cartridges include at least one cartridge in one of the two columns and at least one cartridge in another of the two columns in at least a portion of the housing .
[0027]
27. Charger characterized in that it comprises: a housing adapted to attach to a firearm; a dividing wall within the housing and adapted to separate cartridges into two sets of cartridges; an outer follower adapted to move and coordinate advance of both two sets of cartridges and an inner follower adapted to move and coordinate advance of both two sets of cartridges, wherein the inner follower is adapted to nest within the outer follower; at least three springs adapted to move a plurality of followers; and wherein the outer follower, inner follower, housing, and the at least three springs are adapted to coordinate fusion of four columns of cartridges into two interconnected and staggered cartridge columns to accelerate movement of the cartridges and mitigate a force required to remove cartridges from charger.
[0028]
28. A loader according to claim 27, characterized in that, when the outer follower and the inner follower are nested, one of the columns of cartridges is secured by the outer follower above a first surface of the inner follower by a span of ^ of the diameter of the cartridge, and wherein, when the outer follower and the inner follower are not nested, the first surface of the inner follower is adapted to close the opening and contact at least one of the cartridges.
[0029]
29. Loader according to claim 27, characterized in that the two interconnected and staggered columns comprise at least one cartridge in one of the two columns and at least one cartridge in another of the two columns in at least a portion of the housing.
[0030]
30. Loader according to claim 27, characterized in that the housing includes a transition with two opposite symmetrical side walls and in that the housing is adapted so that the cartridges end in a single feeding position or in a position of dual power.
[0031]
31. Loader according to claim 27, characterized in that it comprises: two feeding ferrules formed at an upper end of the housing; and at least one spring loaded surface adapted to force a front of the cartridges of the two interconnected and staggered columns together as they approach the feed ferrules.

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AU2011265747A1|2012-10-04|

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EP2550500B1|2018-05-30|

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法律状态:
2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

---

2019-11-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

---

2021-03-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

---

2021-05-18| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/03/2011, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF |

优先权:

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申请号 | 申请日 | 专利标题

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US31739610P| true| 2010-03-25|2010-03-25|

---

US61/317,396|2010-03-25|

---

PCT/US2011/030076|WO2011159383A2|2010-03-25|2011-03-25|High capacity magazine with multiple springs|

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