MULTIFUNCTIONAL COMPOSITE PROJECTILES AND METHODS OF MANUFACTURING THE SAME
20210108903 · 2021-04-15
Assignee
Inventors
- Robert Folaron (Colorado Springs, CO, US)
- Howard D. Kent (Waldport, OR, US)
- Jennifer Folaron (Colorado Springs, CO, US)
Cpc classification
F42B12/34
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F42B10/46
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F42B10/48
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F42B14/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F42B12/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F42B12/745
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
Abstract
The present invention is directed to composite projectiles and the manufacture thereof for a wide range of purposes and applications through variation of the composite makeup of such composite projectiles. Embodiments of the invention include composite projectiles configured for manufacture using melt-flow manufacturing methods use-cases and composite projectiles having specialized performance for more effective use in specific use-cases.
Claims
1. A composite projectile comprising: a leading end, and a trailing end; at least one drag-inducing element comprising a side-cut into an external surface of a composite projectile; the at least one drag-inducing element further comprising a trailing aspect; the trailing aspect of the at least one drag-inducing element having a surface which is substantially orthogonal to the path of travel of the composite projectile.
2. The composite projectile of claim 1 wherein, the at least one drag-inducing element comprises a plurality of drag-inducing elements radially distributed around the leading end of the projectile.
3. The composite projectile of claim 2 wherein, the side-cuts of the drag-inducing elements comprise a cylindrical form.
4. The composite projectile of claim 3 wherein, the cylindrical forms are parallel to the path of travel of the composite projectile.
5. The composite projectile of claim 4 wherein, the composite projectile comprises a mixture comprising (by weight): greater than 0% and less than 10% of a polymer; 85-95% metallic particles, the metallic particles having a maximum dimension of 250 microns; and greater than 0% and up to 5% of carbon particles having a maximum dimension of 50 microns, wherein the mixture is homogeneously incorporated and processed in a melt-flow manufacturing process.
6. The composite projectile of claim 2 wherein, the surface of the trailing aspects of the drag-inducing elements comprises a concave form that extends toward the trailing end of the projectile further than an outer boundary of the trailing aspect of the drag-inducing element.
7. The composite projectile of claim 6 wherein, the composite projectile comprises a mixture comprising (by weight): greater than 0% and less than 10% of a polymer; 85-95% metallic particles, the metallic particles having a maximum dimension of 250 microns; and greater than 0% and up to 5% of carbon particles having a maximum dimension of 50 microns, wherein the mixture is homogeneously incorporated and processed in a melt-flow manufacturing process.
8. The composite projectile of claim 2 wherein, the surface of the trailing aspect of the drag-inducing elements comprises between 10% and 80% of a frontal area of the composite projectile.
9. The composite projectile of claim 8 wherein, the composite projectile comprises a mixture comprising (by weight): greater than 0% and less than 10% of a polymer; 85-95% metallic particles, the metallic particles having a maximum dimension of 250 microns; and greater than 0% and up to 5% of carbon particles having a maximum dimension of 50 microns, wherein the mixture is homogeneously incorporated and processed in a melt-flow manufacturing process.
10. The composite projectile of claim 2 wherein, the surface of the trailing aspect of the drag-inducing elements comprises between 12% and 67% of a frontal area of the composite projectile.
11. The composite projectile of claim 10 wherein, the composite projectile comprises a mixture comprising (by weight): greater than 0% and less than 10% of a polymer; 85-95% metallic particles, the metallic particles having a maximum dimension of 250 microns; and greater than 0% and up to 5% of carbon particles having a maximum dimension of 50 microns, wherein the mixture is homogeneously incorporated and processed in a melt-flow manufacturing process.
12. The composite projectile of claim 2 wherein, the surface of the trailing aspect of the drag-inducing elements comprises between 15% and 60% of a frontal area of the composite projectile.
13. The composite projectile of claim 12 wherein, the composite projectile comprises a mixture comprising (by weight): greater than 0% and less than 10% of a polymer; 85-95% metallic particles, the metallic particles having a maximum dimension of 250 microns; and greater than 0% and up to 5% of carbon particles having a maximum dimension of 50 microns, wherein the mixture is homogeneously incorporated and processed in a melt-flow manufacturing process.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
[0091] Certain embodiments of the present invention comprise a composite projectile for use in applications such as door breaching and/or neutralization of organic and inorganic targets. Such embodiments comprise less than 10% polyamide, 85-95% of dense metal particles, such as tungsten, and up to 5% carbon particles having a maximum dimension of 50 microns. In certain embodiments, the carbon particles have a maximum dimension of 20 microns. It will be appreciated that in the context of the present application, percentages for the mixture of embodiments are provided by mass or weight. In certain embodiments, the dense metal particles have a maximum dimension of 250 microns, while in other embodiments it may be desired to use dense metal particles having a maximum dimension of 150 microns. When these particles are homogeneously mixed and formed through a melt-flow process, the characteristics imparted upon the resulting composite projectile provide rapid dissipation of energy when the composite projectile impacts a target. Such embodiments are designed to provide shrapnel-free and ricochet-free characteristics. It is a further aspect of such embodiments to prevent the destructive energy or particles from the composite projectile from traveling beyond the intended target area. The dense metal particles are typically of a metallic element or compound to provide a specified weight for a given caliber. Examples of a composite projectile 1000 for use in door breaching and/or neutralization of organic and inorganic targets are shown in
[0092] It will be appreciated that the percentages as provided herein surround measurement of composition by weight, however it will be appreciated that such percentages can be applied in volumetric measurement while in keeping with the spirit and scope of the present invention.
[0093] Certain embodiments comprise a composite projectile for use in shrapnel-free and ricochet-free shooting practice as well as for the neutralization of organic and inorganic targets. Such embodiments comprise less than 10% of a polyamide, 85-95% of inexpensive metal particles such as aluminum or steel or iron, and up to 5% carbon particles having a maximum dimension of 50 microns. In certain embodiments, carbon particles have a maximum dimension of 20 microns. In certain embodiments, the metallic particles comprise a maximum dimension of 150 microns, while other embodiments comprise metallic particles having a maximum dimension of 250 microns. Homogeneous mixing and forming through a melt-flow process results in an inexpensive composite projectile which will not carry destructive outside the target area after striking a desired target. An example of a composite projectile 1000 for use in shrapnel-free and ricochet-free shooting practice as well as for the neutralization of organic and inorganic targets is shown in
[0094] Certain embodiments comprise a composite projectile which exhibits explosive characteristics upon impact with a target. Such embodiments comprise less than 10% of a polyamide or other polymer capable of being processed in a melt-flow or casting process. The composite projectile further comprises 25-90% of weight inducing particles such as metallic particles, 5-65% of energetic or explosive particles such as aluminum nanoparticles, and up to 5% of carbon particles having a maximum dimension of 50 microns. In certain embodiments, the carbon particles have a maximum dimension of 20 microns. In certain embodiments, the weight inducing particles have a maximum dimension of 250 microns, while other embodiments comprise metallic particles with maximum dimension of 150 microns. The homogeneous mixing and forming through a melt-flow process results in a composite projectile which will react explosively when it impacts a target. An example of a composite projectile 1000, shown in
[0095] Certain embodiments of the present invention comprise a composite projectile having uniquely identifiable characteristics to allow the composite projectile to be identified prior to and after the composite projectile has been fired from a weapon. Such embodiments comprise less than 10% of a polyamide or other polymer capable of being processed in a melt-flow or casting process and 85-95% of metal particles such as copper. In certain embodiments, the metal particles comprise a maximum dimension of 250 microns while other embodiments comprise a maximum dimension of 150 microns. The composite projectile further comprises up to 5% carbon particles having a maximum dimension of 50 microns or less, and less than 3% of unique identifying elements or molecules. In certain embodiments, the carbon particles have a maximum dimension of 20 microns. Homogeneous mixing and forming through a melt-flow process results in a composite projectile which is uniquely identifiable prior to and after use. It will be appreciated that synthetic molecules specifically made for the identification of composite projectiles may be used in the manufacture of such embodiments for increased identifiability. An example of a composite projectile 1000, shown in
[0096] Certain embodiments of the present invention comprise a composite projectile having less than 10% polyamide, 85-95% of metal particles, such as copper, and up to 5% carbon particles. In certain embodiments, the metal particles have a maximum dimension of 250 microns, while other embodiments comprise metal particles having a maximum dimension of 150 microns. In certain embodiments, the maximum dimension of the carbon particles comprises a maximum dimension of 20 microns, while other embodiments comprise a maximum dimension of 50 microns. It will be appreciated that composite projectiles may be designed to have a certain mass or density which may be tailored to a specific purpose through the variation of percentages. It will be further appreciated that composite projectiles of varying densities or masses may be produced using the same mold while varying the material composition of the composite projectile material mixture. An example of such an embodiment, as shown in
[0097] It will be appreciated that composite projectiles may undergo post-processing or secondary manufacturing processes to modify the composite projectile. It may be desired in certain embodiments to add coatings, apertures, and/or plugs to a composite projectile for purposes of modifying ballistic trajectory, reloading action or on-target characteristics.
[0098] Certain embodiments of the present invention surround ammunition casing for the firing of composite projectiles. Certain embodiments comprise a polymer-based casing. Certain embodiments comprise a steel casing. Certain embodiments comprise a casing having a combination of metal and polymer construction. Certain embodiments comprise a single-piece casing while others comprise multiple pieces assembled into a contiguous case. Such embodiments as disclosed are used to provide weight-reduction, increased reloadability, cost reductions, and or the ability to withstand higher pressures when a composite projectile is fired.
[0099] It will be appreciated that embodiments such as composite projectiles and polymer-based casings result in composite projectiles and casings having a higher level of lubricity than found in the prior art. The increased lubricity of such embodiments allows for the mechanically driven reloading of a firearm with an unfired cartridge with less friction or resistance. Thus, resulting in increased reloadability with increased reliability, decreased frequency of mechanical failure events, and reduced wear on the reloading mechanisms of the firearm. An example of a composite projectile having increased lubricity is shown in
[0100] Certain embodiments comprise a composite projectile having a colorant added and homogeneously incorporated prior to the production of the composite projectile. This results in a composite projectile having a particular color or tint which is identifiable by the user of the composite projectile. It may be desired to color-code composite projectiles according to their intended purpose, allowing a user to identify composite projectiles for particular purposes by color, without a need for a secondary or post-processing step of coating or coloring.
[0101] Certain embodiments, as shown in
[0102] Referring once again to
[0103] Referencing
[0104] It will be appreciated by those skilled in the art that the frontal area 2400 of a projectile is defined by the area of the projectile which is projected along the velocity vector or path of travel 2100. In certain embodiments of the present invention, the surface 2210 of trailing aspect 2200 of the drag-inducing elements comprise between 10%-80% of the frontal area 2400 of the projectile. In certain embodiments of the present invention, the surface 2210 of trailing aspect 2200 of the drag-inducing elements comprise between 12%-67% of the frontal area 2400 of the projectile. In certain embodiments of the present invention, the surface 2210 of trailing aspect 2200 of the drag-inducing elements comprise between 15%-60% of the frontal area 2400 of the projectile.
[0105] Certain embodiments, as shown in
[0106] Certain embodiments, as seen in
[0107] It is an aspect of certain embodiments of the present invention to prevent the shifting of a hardened penetrator within projectile such as caused by the heat from initiation of a propelling charge. In certain embodiments, a cap is affixed to the trailing end 1002 of a composite projectile to shield the base of the composite projectile from the heat of the initiation of the propelling charge.
[0108] In certain embodiments, as shown in
[0109] As seen in
[0110] In certain embodiments, as shown in
[0111] In certain embodiments, shown in
[0112] In certain embodiments, shown in
[0113] For purposes of further disclosure, the following references generally related to projectiles and manufacturing methods are hereby incorporated by reference in their entireties:
[0114] U.S. Pat. No. 9,383,178 to Powers, issued on Jul. 5, 2016, which discloses a Hollow point bullet and method of manufacturing same;
[0115] U.S. Pat. No. 9,188,416 to Hash et al., issued on Nov. 17, 2015, which discloses lead-free, corrosion-resistant projectiles and methods of manufacture;
[0116] U.S. Pat. No. 9,057,591 to Hash et al., issued on Jun. 16, 2015, which discloses lead-free, corrosion-resistant projectiles and methods of manufacture;
[0117] U.S. Pat. No. 8,833,262 to Leasure, issued on Sep. 16, 2014, which discloses a lead-free reduced ricochet limited penetration projectile;
[0118] U.S. Pat. No. 7,992,500 to Williams, issued on Aug. 9, 2011, which discloses a method and apparatus for self-destruct frangible projectiles;
[0119] U.S. Pat. No. 5,616,642 to West et al., issued on Apr. 1, 1997, which discloses a lead-free frangible ammunition;
[0120] U.S. Pat. No. 5,237,930 to Belanger et al., issued on Aug. 24, 1993, which discloses a frangible practice ammunition;
[0121] U.S. Pat. No. 9,388,090 to Joshi et al., issued on Jul. 12, 2016, which discloses a fast ignition and sustained combustion of ionic liquids;
[0122] U.S. Pat. No. 9,372,054 to Padgett, issued on Jun. 21, 2016, which discloses a narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition;
[0123] U.S. Pat. No. 9,227,353 to Williams, issued on Jan. 5, 2016, which discloses a molding apparatus and method for operating same;
[0124] U.S. Pat. No. 9,194,680 to Padgett et al., issued on Nov. 24, 2015, which discloses polymer-based machine gun belt links and cartridge casings and manufacturing method;
[0125] U.S. Pat. No. 9,046,333 to Masinelli, issued on Jun. 2, 2015, which discloses a bullet;
[0126] U.S. Pat. No. 8,997,653 to Calvert, issued on Apr. 7, 2015, which discloses a stroke inducing bullet;
[0127] U.S. Pat. No. 8,893,621 to Escobar, issued on Nov. 25, 2014, which discloses a projectile;
[0128] U.S. Pat. No. 8,881,654 to Seecamp, issued on Nov. 11, 2014, which discloses bullets with lateral damage stopping power;
[0129] U.S. Pat. No. 8,393,273 to Weeks, issued on Mar. 12, 2013, which discloses bullets, including lead-free bullets, and associated methods;
[0130] U.S. Pat. No. 8,365,672 to Martinez, issued on Feb. 5, 2013, which discloses a frangible bullet and its manufacturing method;
[0131] U.S. Pat. No. 8,312,815 to Joys et al., issued on Nov. 20, 2012, which discloses lead free frangible bullets;
[0132] U.S. Pat. No. 8,225,718 to Joys et al., issued on Jul. 24, 2012, which discloses lead free frangible bullets;
[0133] U.S. Pat. No. 8,308,986 to Stuart, issued on Nov. 13, 2012, which discloses a bismuth compounds composite;
[0134] U.S. Pat. No. 5,035,183 to Luxton, issued on Jul. 30, 1991, which discloses a frangible nonlethal projectile;
[0135] U.S. Pat. No. 6,149,705 to Richard A. Lowden et al, issued on Nov. 21, 2000, which discloses environmentally safe projectiles made of two different metals, one that is significantly more malleable and acts as a binder to the higher density material and forms the shape of the bullet under compression;
[0136] U.S. Pat. No. 10,126,105 to Paul Lemke, et al., issued on Nov. 13, 2018 which discloses projectiles having notches configured to improve the aerodynamics of the projectile; and
[0137] U.S. patent application Ser. No. 15/495,367, to Folaron et al., filed on Apr. 24, 2017, which discloses an injection molding apparatus and method of use.
[0138] While various embodiments of the present invention have been described in detail, it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art. However, it is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention. Further, the inventions described herein are capable of other embodiments and of being practiced or of being carried out in various ways. In addition, it is to be understood that the phraseology and terminology used herein is for the purposes of description and should not be regarded as limiting. The use of “including,” “comprising,” or “adding” and variations thereof herein are meant to encompass the items listed thereafter and equivalents thereof, as well as, additional items.