Shot Patents (Class 102/448)
  • Patent number: 10247529
    Abstract: A shot shell is disclosed. The shot shell includes a casing, a projectile, a cushion wad having a sabot, a propellant, and a primer for igniting the propellant. The projectile, the cushion and the propellant are contained within the casing. The projectile includes a reactive material pellet that is partially covered by a taper-shaped inert capsule.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: April 2, 2019
    Assignee: Energetic Materials & Products, Inc.
    Inventors: John Joseph Granier, Dennis Eugene Wilson, Joel Brad Bailey
  • Patent number: 9624973
    Abstract: A friction preventing apparatus and a method of manufacturing the same are provided. The apparatus includes: a first object; a second object spaced apart from the first object and facing the first object; and a plurality of charged nanoparticles provided on a surface of one of the first and second objects, such that the nanoparticles are disposed between the first object and the second object. A potential difference is formed between the first and second objects. The nanoparticles may be positively charged and may adhere to the first object, and the first object has a potential lower than a potential of the second object. The nanoparticles may be negatively charged and may adhere to the second object, and the second object has a potential higher than a potential of the first object.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sung-nae Cho
  • Publication number: 20150107479
    Abstract: Firearm projectiles and methods of manufacturing firearm projectiles from a supply of clad wire. In some embodiments, the clad wire is manufactured as electrical wire, such as copper-clad steel wire. Bullets and shot, as well as methods of forming bullets and shot, from clad wire are disclosed.
    Type: Application
    Filed: July 15, 2014
    Publication date: April 23, 2015
    Inventor: Darryl D. Amick
  • Patent number: 8875632
    Abstract: A method for providing permanently colored steel shot for shot shells through anodizing and shells manufactured utilizing the shot.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: November 4, 2014
    Inventor: Tony Jaehnichen
  • Patent number: 8800449
    Abstract: A wad or basewad for ammunition includes an ignition chamber. The ignition chamber can be integrally formed with the payload wad, basewad, or battery cup or can be attached to the payload wad, basewad, or battery cup. The ignition chamber communicates with a primer of the ammunition to receive and contain the primer blast for at least an initial period of time. This facilitates faster initial ignition of the propellant of the ammunition, and consequently allows higher performance levels to be achieved. Other advantages regarding other applications of this invention include cleaner burning loads, greater economy, and lower perceived recoil.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: August 12, 2014
    Assignee: RA Brands, L.L.C.
    Inventors: David K. Schluckebier, Kevin R. Cross, Ricky J. Buckmaster, Spencer D. Wildman
  • Patent number: 8783152
    Abstract: A two piece, two-stage, reduced-energy mechanically operating cartridge is provided for launching, a configured bullet choice of various compositions from a dedicated or modified firearm. The cartridge unit is comprised of a primary case having a cavity to receive a propellant unit or propellant connection and a piston sleeve having a cavity to receive the configured bullet choice, the primary case coupled to the piston sleeve. The cartridge having a retracted pre-firing state and an expanded fired state whereby the piston sleeve and primary case telescope apart forcing, the firearm's slide or bolt to the rear, a mechanical operation opposed to a conventional cartridge with gas blow back operations.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: July 22, 2014
    Assignee: Alliant Techsystems Inc.
    Inventor: Rick Huffman
  • Patent number: 8726778
    Abstract: This disclosure generally relates to high-volume and cost-effective methods for producing non-spherical metal particles, particularly methods for producing metal cubes having rounded edges. The metal cubes having rounded edges are useful as ballistic shot in shotshell loads for hunting, where the particle shape imparted by the disclosed process packs to a higher density than spherical shot in the same volume.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: May 20, 2014
    Assignee: Ervin Industries, Inc.
    Inventor: James Trent Pearson
  • Publication number: 20140130696
    Abstract: Shotshell type ammunition includes a hull, a wad member disposed within the hull, and at least one projectile disposed within at least partially the hull. The hull has a rimless proximal end that includes a primer for firing the ammunition. The hull also has a seat surface for seating the hull against a complementary seat surface in a firing chamber of a firearm. The seat surface is located a distance from an outer end surface of the hull at the rimless proximal end. The hull further includes an outer side surface extending from the rimless proximal end of the hull to the seat surface of the hull. Methods of fabricating such ammunition include forming such a hull, and providing a wad member and one or more projectiles at least partially within the hull.
    Type: Application
    Filed: November 13, 2012
    Publication date: May 15, 2014
    Applicant: INTREPID TACTICAL SOLUTIONS, LLC
    Inventor: Intrepid Tactical Solutions, LLC
  • Publication number: 20140076187
    Abstract: A wad or basewad for ammunition includes an ignition chamber. The ignition chamber can be integrally formed with the payload wad, basewad, or battery cup or can be attached to the payload wad, basewad, or battery cup. The ignition chamber communicates with a primer of the ammunition to receive and contain the primer blast for at least an initial period of time. This facilitates faster initial ignition of the propellant of the ammunition, and consequently allows higher performance levels to be achieved. Other advantages regarding other applications of this invention include cleaner burning loads, greater economy, and lower perceived recoil.
    Type: Application
    Filed: July 13, 2012
    Publication date: March 20, 2014
    Inventors: David K. Schluckebier, Kevin R. Cross, Ricky J. Buckmaster, Spencer D. Wildman
  • Patent number: 8622000
    Abstract: A shot pellet for a shotshell. The shot pellet has a generally cubic shape comprising six generally square faces joined by rounded edges that have a radius of curvature of between about 15% and 40% of the distance between opposite faces of the generally cubic shaped pellet.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: January 7, 2014
    Assignee: Olin Corporation
    Inventor: Stephen W. Meyer
  • Patent number: 8567298
    Abstract: This disclosure generally relates to high-volume and cost-effective methods for producing non-spherical metal particles, particularly methods for producing metal cubes having rounded edges. The metal cubes having rounded edges are useful as ballistic shot in shotshell loads for hunting, where the particle shape imparted by the disclosed process packs to a higher density than spherical shot in the same volume.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: October 29, 2013
    Assignee: Ervin Industries, Inc.
    Inventor: James Trent Pearson
  • Patent number: 8511231
    Abstract: A less than lethal projectile and method of producing the same comprising of a sealed filled polymeric pouch containing a shot within. The sealed filled polymeric pouch is formed in a form, fill, and seal machine. An automatic loading ammunition machine is fed empty shell casings; the ammunition machine automatically loads the empty shell casing with pre-determined quantities of wad, primer, and gun powder, and subsequently moves the sealed filled polymeric pouch into a projectile compartment of the empty shell casing producing a fully-loaded shell casing to be loaded into a barrel of an ammunition. The polymeric pouch is capable of being inserted into various shell casings depending on the intended use thus allowing for officers and soldiers to select from an array of munitions when confronted with a situation where less than lethal means are required.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: August 20, 2013
    Assignee: Brejon Holdings (BVI), Ltd.
    Inventors: John Hayes, Daniel Smith
  • Publication number: 20130145951
    Abstract: Shot shells with enhanced performance due to inclusion of an absorber between the shot wad and the shot payload. The absorber reduces the pressure within a shot gun's chamber during firing of the shell, such as by absorbing energy generated during the firing process, and may thereafter return some of the energy to the pellets as the absorber and pellets are propelled along the firearm's barrel. Accordingly, the absorber enables a shot shell to generate shot payload velocities that are greater than would be achieved without the absorber, typically at a lower internal chamber pressure. In some embodiments, the absorber has (1) a Young's Modulus of less than 2,000 psi (137.9 bar), (2) a compressive strength of at least 100 psi (6.9 bar) and/or less than 10,000 psi (689.5 bar), and/or (3) a tensile strength of at least 145 psi (10 bar) and/or less than 10,000 psi (689.5 bar).
    Type: Application
    Filed: December 6, 2012
    Publication date: June 13, 2013
    Applicant: ENVIRON-METAL, INC.
    Inventor: ENVIRON-METAL, INC.
  • Publication number: 20130055917
    Abstract: This disclosure provides for payload delivery systems and cartridges and methods that incorporate these payload delivery systems. In one aspect, the payload delivery system can comprise a payload cup and a pleated cup nested within the payload cup and having a pleated side wall. The disclosed cartridges can be used to deliver payloads such as solid projectiles, shot of all sizes, powders, gels, liquids, and other payloads to exploit their specific function.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 7, 2013
    Inventor: James Y. Menefee, III
  • Publication number: 20130055916
    Abstract: This disclosure provides for payload delivery systems and cartridges and methods that incorporate the payload delivery systems. The payload delivery system can comprise a stabilizer having a longitudinally cut side wall defining a series of vanes that are folded forward in the pre-launched configuration. Other aspects combine a payload cup nested within the forward folding stabilizer. Still other aspects integrate the payload portion and the stabilizer portion into a single piece that constitutes a stabilized payload cup. The disclosed cartridges can be used to deliver payloads such as solid projectiles, shot of all sizes, powders, gels, liquids, and other payloads to exploit their specific function.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 7, 2013
    Inventor: James Y. Menefee, III
  • Patent number: 8356555
    Abstract: The present invention relates to a process for manufacturing a projectile made of steel or based on iron, for a hunting or sports cartridge, for the purpose of giving it a Vickers hardness at room temperature of between 40 HV 10 and 110 HV 10, preferably between 40 HV 10 and 85 HV 10, characterized at least by the following successive steps:—liquid pig iron or steel is used, hereafter called liquid metal, the carbon content of which is between 0.8 and 4.0% C by weight, preferably between 0.8 and 2.0% C by weight;—the liquid metal is cast using a steam or water-vapor granulation process to obtain spheroidal steel particles; —said particles are subjected to a heat treatment for softening the solidified metal by graphitization, while remaining in the ferritic range; and—optionally, said particles are subjected to a surface coating treatment.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: January 22, 2013
    Assignee: Centre de Recherches Metallurgiques asbl—Centrum voor de Research in de Metallurgie vzw
    Inventors: Alain Schmitz, Gisele Walmag, Vittorino Tusset
  • Publication number: 20120234199
    Abstract: A shot pellet for a shotshell. The shot pellet has a generally cubic shape comprising six generally square faces joined by rounded edges that have a radius of curvature of between about 15% and 40% of the distance between opposite faces of the generally cubic shaped pellet.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 20, 2012
    Inventor: Stephen W. Meyer
  • Patent number: 8220393
    Abstract: A wad or basewad for ammunition includes an ignition chamber. The ignition chamber can be integrally formed with the wad or basewad or can be attached to the wad or basewad. The ignition chamber communicates with a primer of the ammunition to receive and contain the primer blast for at least an initial period of time. This facilitates faster initial ignition of the propellant of the ammunition, and consequently allows higher performance levels to be achieved. Other advantages regarding other applications of this invention include cleaner burning loads, greater economy, and lower perceived recoil.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: July 17, 2012
    Assignee: RA Brands, L.L.C.
    Inventors: David B. Schluckebier, Kevin R. Cross, Ricky J. Buckmaster, Spencer D. Wildman
  • Publication number: 20120144712
    Abstract: A weapon system for urban combat incorporating an automatic gun having a short recoil, a feed system with gun driven box magazines of different capacities, a detachable link-belt feed, spring buffered barrel and bolt recoil absorbing arrangement, and simplified fire control.
    Type: Application
    Filed: January 29, 2009
    Publication date: June 14, 2012
    Inventor: Charles Edward Rostocil
  • Publication number: 20120132099
    Abstract: A primer composition that includes red phosphorus having an acid scavenger and a polymer thereon. The primer composition includes at least one other component that is substantially free of lead. The other component is at least one oxidizer, or at least one oxidizer and at least one of at least one secondary explosive composition and at least one energetic binder. The primer composition optionally includes at least one element having an ionic charge to ionic radius ratio of 4 or of 8, such as magnesium, zirconium, aluminum, silicon, titanium, tungsten, alloys thereof, and combinations thereof. The red phosphorus and the at least one oxidizer are present in the primer composition at approximately stoichiometric amounts. An ordnance element including the primer composition is also disclosed.
    Type: Application
    Filed: August 19, 2008
    Publication date: May 31, 2012
    Inventors: Randall T. Busky, Tod R. Botcher, Joel L. Sandstrom, Jack A. Erickson
  • Patent number: 8186273
    Abstract: Ammunition having an integrally formed, polymeric casing is provided. Plastic casings for ammunition may be made using injection molding processes for combat ammunition, target ammunition and blanks. The casings, in one embodiment, include a hollow tubular member with an open end and a closed end having an aperture for a primer cap. The base of the casing includes a conical shape within the tube that narrows toward the base. An annular groove and an annular rim are disposed about an outer periphery of the base. Plastic casings may be utilized for ammunition cartridges used in pistols, rifles and shotguns, and are lighter and less expensive to manufacture than traditional brass casings. Further, the polymeric casings may include any desired colorants to distinguish different calibers of ammunition by color, and the spent casings may be recyclable.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: May 29, 2012
    Inventor: Roger Blaine Trivette
  • Patent number: 8171849
    Abstract: Shotshells are provided which are loaded with at least two different shot charges, at least one of said charges being comprised of shot pellets with short-range shape(s) and at least another of said charges being comprised of shot pellets with long-range shape(s). Said shotshells are thereby capable of producing shotgun patterns that are suitable for both short-range and long-range shooting.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: May 8, 2012
    Assignee: Amick Family Revocable Living Trust
    Inventor: Darryl D. Amick
  • Patent number: 8122832
    Abstract: Shot projectiles are disclosed that are not completely spherical. The shot may have a protruding ring, an elongated configuration, flat or concave surfaces, or other configurations that may affect the spreading distribution of the shot when fired or the ability to cause damage to a target.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: February 28, 2012
    Assignee: Spherical Precision, Inc.
    Inventor: Tim T. Wei
  • Patent number: 8061274
    Abstract: A less than lethal projectile and method of producing the same comprising of a sealed filled polymeric pouch containing a shot within. The sealed filled polymeric pouch is formed in a form, fill, and seal machine. An automatic loading ammunition machine is fed empty shell casings; the ammunition machine automatically loads the empty shell casing with pre-determined quantities of wad, primer, and gun powder, and subsequently moves the sealed filled polymeric pouch into a projectile compartment of the empty shell casing producing a fully-loaded shell casing to be loaded into a barrel of an ammunition. The polymeric pouch is capable of being inserted into various shell casings depending on the intended use thus allowing for officers and soldiers to select from an array of munitions when confronted with a situation where less than lethal means are required.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: November 22, 2011
    Assignee: Brejon Holdings (BVI), Ltd.
    Inventors: John Hayes, Daniel Smith
  • Publication number: 20110017090
    Abstract: This disclosure relates generally to cartridges for use in projectile-launching devices, such as ammunition cartridges, flare cartridges, and the like, including components of the cartridges, and methods for their manufacture. For example, the cartridges of this disclosure can be ammunition cartridges such as shotshell cartridges, which include an obturating medium which functions to seal the compressed but expanding hot gases and can be used without a pre-formed gas seal.
    Type: Application
    Filed: September 17, 2010
    Publication date: January 27, 2011
    Inventor: James Y. Menefee, III
  • Publication number: 20100275804
    Abstract: Ammunition having an integrally formed, polymeric casing is provided. Plastic casings for ammunition may be made using injection molding processes for combat ammunition, target ammunition and blanks. The casings, in one embodiment, include a hollow tubular member with an open end and a closed end having an aperture for a primer cap. The base of the casing includes a conical shape within the tube that narrows toward the base. An annular groove and an annular rim are disposed about an outer periphery of the base. Plastic casings may be utilized for ammunition cartridges used in pistols, rifles and shotguns, and are lighter and less expensive to manufacture than traditional brass casings. Further, the polymeric casings may include any desired colorants to distinguish different calibers of ammunition by color, and the spent casings may be recyclable.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 4, 2010
    Inventor: Roger Blaine Trivette
  • Patent number: 7803314
    Abstract: Non-toxic shot having 40-60% tungsten, 20-60% tin and 0-10% iron. A process of formulating the material is disclosed in which 95% by weight of the particles of each component having mesh sizes less than 325 are blended with a flux having 99.9% by weight particles less than 100 mesh. The blended material is then compaction formed into shape at a pressure range of between 20 and 40 tons per square inch. Finally, the blended material is sintered at a temperature in the range of 350 and 425° F. bonding the powdered metals and driving off the flux.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: September 28, 2010
    Inventor: Daniel George Tercho
  • Patent number: 7765933
    Abstract: In at least one embodiment, a shotshell comprises a casing defining an internal chamber, a plurality of first shot pellets within the internal chamber and a plurality of second shot pellets within the internal chamber. The first shot pellets comprise a first shape and the second shot pellets comprise a second shape that is different from the first shape.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: August 3, 2010
    Assignee: Alliant Techsystems Inc.
    Inventors: Rochelle Diane Poore, Drew Lee Goodlin, Lawrence Peter Head
  • Publication number: 20100101444
    Abstract: A wad or basewad for ammunition includes an ignition chamber. The ignition chamber can be integrally formed with the wad or basewad or can be attached to the wad or basewad. The ignition chamber communicates with a primer of the ammunition to receive and contain the primer blast for at least an initial period of time. This facilitates faster initial ignition of the propellant of the ammunition, and consequently allows higher performance levels to be achieved. Other advantages regarding other applications of this invention include cleaner burning loads, greater economy, and lower perceived recoil.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Inventors: David K. Schluckebier, Kevin R. Cross, Ricky J. Buckmaster, Spencer D. Wildman
  • Publication number: 20100043662
    Abstract: A diffusion alloyed iron powder is provided wherein tungsten W is bonded to the surfaces of the particles of an iron or iron-based powder, and wherein the diffusion alloyed iron powder comprises by weight-%: 30-60 W, with the balance being essentially only iron and unavoidable impurities.
    Type: Application
    Filed: January 21, 2008
    Publication date: February 25, 2010
    Applicant: HOGANAS AB (publ)
    Inventors: Johan Arvidsson, Hans Söderhjelm
  • Patent number: 7640861
    Abstract: Medium- and high-density articles are formed from alloys containing tungsten, iron, nickel and optionally manganese and/or steel. In some embodiments, the articles have densities in the range of 8-10.5 g/cm3, and in other embodiments, the articles have densities in the range of 10.5-15 g/cm3. In some embodiments, the articles are ferromagnetic, and in others the articles are not ferromagnetic. In some embodiments, tungsten forms the largest weight percent of the alloy, and in other embodiments the alloy contains no more than 50 wt % tungsten. In some embodiments, the articles are shell shot.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 5, 2010
    Inventor: Darryl D. Amick
  • Publication number: 20090301338
    Abstract: The present invention relates to a process for manufacturing a projectile made of steel or based on iron, for a hunting or sports cartridge, for the purpose of giving it a Vickers hardness at room temperature of between 40 HV 10 and 110 HV 10, preferably between 40 HV 10 and 85 HV 10, characterized at least by the following successive steps:—liquid pig iron or steel is used, hereafter called liquid metal, the carbon content of which is between 0.8 and 4.0% C by weight, preferably between 0.8 and 2.0% C by weight;—the liquid metal is cast using a steam or water-vapour granulation process to obtain spheroidal steel particles;—said particles are subjected to a heat treatment for softening the solidified metal by graphitization, while remaining in the ferritic range; and—optionally, said particles are subjected to a surface coating treatment.
    Type: Application
    Filed: May 21, 2007
    Publication date: December 10, 2009
    Applicant: Centre De Recherches Metallurgiques asbl Centrum Voor Research In De Metallurgie vzw
    Inventors: Alain Schmitz, Gisele Walmag, Vittorino Tusset
  • Publication number: 20090173250
    Abstract: A system is disclosed for defeating enemy missiles and rockets, particularly rocket propelled grenades (RPG's). The first step is to identify the firing of a missile by the use of sensors that give the approximate distance and bearing of the incoming missile. A non-lethal cloud of pellets is then launched from the target, which can be a building or vehicle or the like, in the general direction of the missile. The pellets are housed in a series of warhead containers mounted at locations on the target in various orientations. The warheads are triggered to fire a low velocity cloud of pellets toward the incoming missile. The pellets then collide with the missile a certain distance away from the target causing premature detonation of the missile, and/or possible severe damage to the missile, and/or deflection of the missile, due to the relatively high velocity of the missile.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 9, 2009
    Applicant: MECHANICAL SOLUTIONS INC.
    Inventors: William Donnelly Marscher, William Joseph Kelly, Paul James Guthrie, Joseph John DeLorenzo, George DeMassi
  • Publication number: 20090095187
    Abstract: A high-pressure fixed munition for a low-pressure launching system having a cylindrical body with a centrally located bore is provided. The bore of the munition has a reduced diameter on the charge end in which a primer charge is positioned. The bore is filled above the primer charge with a propellant and above the propellant with a payload. The payload may include multiple buckshot pellets, frangible buckshot pellets, tear gas, multiple slugs, frangible slugs, paint balls, rubber pellets, bean bags, or the like. The munition may also include a pressure disk between the propellant and the payload, and tactile ridges or on the outside surface of the munition body or be of a specific color for purposes of identification of the payload.
    Type: Application
    Filed: December 10, 2008
    Publication date: April 16, 2009
    Inventors: John Whitworth Engel, Kevin Dexter Dockery, Christopher Luchini
  • Patent number: 7422720
    Abstract: High density, nontoxic projectiles and other articles, and their methods of manufacture, are disclosed. More particularly, high density nontoxic W—Cu—Ni—Fe alloy compositions, methods of their manufacture and methods by which they may be used as projectiles such as shots, bullets, and pellets and other products traditionally made of lead alloys will be detailed herein in some embodiments. These products have a density comparable to that of lead while avoiding problems of toxicity associated with the use of lead.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: September 9, 2008
    Assignee: Spherical Precision, Inc.
    Inventors: Tim T. Wei, Luguang Tian
  • Patent number: 7415929
    Abstract: Systems for launching one or more projectiles from a bore are provided. An exemplary system incorporates a shell, a projectile, an explosive charge and a wad. The shell includes a base and a casing, with the casing defining an interior. The projectile is located within the interior and is configured to be expelled from the shell casing. The explosive charge is located within the interior and is configured to expel the projectile from the casing. The wad is located within the interior and is configured to expel the projectile from the casing in response to detonation of the explosive charge. The wad includes petals and a petal stop, with the petals being movable between a closed position, in which free ends of the petals are arranged proximate to each other such that the petals at least partially surround the projectile, and an open position, in which the free ends of the petals are displaced from each other, the petal stop being configured to limit movement of the petals beyond the open position.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 26, 2008
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Jim A. Faughn
  • Patent number: 7399334
    Abstract: High density, nontoxic projectiles and other articles, and their methods of manufacture, are disclosed. More particularly, high density nontoxic W—Cu—Ni—Fe alloy compositions, methods of their manufacture and methods by which they may be used as projectiles such as shots, bullets, and pellets and other products traditionally made of lead alloys will be detailed herein in some embodiments. These products have a density comparable to that of lead while avoiding problems of toxicity associated with the use of lead.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: July 15, 2008
    Assignee: Spherical Precision, Inc.
    Inventors: Tim T. Wei, Luguang Tian
  • Publication number: 20080000379
    Abstract: A lead free environmentally friendly ammunition which may be tailored within a range of compositions for specific uses, but generally comprises a mixture of metal powder and mineral filler in combination with a water soluble binder plastic resin and a lubricant. For hunting uses and other uses requiring high level accuracy the amount of metal powder is increased, for other uses where precision shooting is less important such as drug dosing of animals, less metal is used along with increased amounts of mineral filler. The bullets are accurate, and can be frangible. Formulations within the overall range may also be used to make shot for shotgun shells.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventor: Richard D. Hansen
  • Patent number: 7267794
    Abstract: Density-enhanced compositions that are comprised of at least iron and tungsten, and articles, including firearm projectiles, formed therefrom. The articles have a density that exceeds that of steel, and which may be less than, equal to, or greater than that of lead. In some embodiments, iron is the majority component and tungsten is a minority component, with steel optionally forming a portion of the iron-containing component. In some embodiments, the article includes at least one additional minority component, such as one or more of nickel, manganese, tin, carbon, steel, chromium, molybdenum, silicon, aluminum, zinc, copper, potassium, sulfur, vanadium, and/or titanium. In some embodiments, the article is cast or otherwise formed from molten material, and in some embodiments the article is formed via powder metallurgy. In some embodiments, the article is firearm shot, a firearm slug, or a bullet.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: September 11, 2007
    Inventor: Darryl D. Amick
  • Patent number: 7073425
    Abstract: A shot pellet that, has an inner core of a material such tungsten carbide, that is coated with a layer of bismuth. This coating is molecularly bonded to the tungsten carbide and is not an alloy. The unique properties of the shot pellet allow its density to be tailored. Under this process, the effective density of the pellet can be made to be identical to lead for direct replacement in current lead loading formulations. Additionally, the density can be made to be lower than lead for shotguns requiring low barrel pressures, or higher than lead for enhanced energy transfer while maintaining the other advantages of the instant invention.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: July 11, 2006
    Inventors: James Robert Allen, Michael B Katz
  • Patent number: 7013786
    Abstract: A shot pellet that, has an inner core of a material such tungsten carbide, that is coated with a layer of bismuth. This coating is molecularly bonded to the tungsten carbide and is not an alloy. The unique properties of the shot pellet allow its density to be tailored. Under this process, the effective density of the pellet can be made to be identical to lead for direct replacement in current lead loading formulations. Additionally, the density can be made to be lower than lead for shotguns requiring low barrel pressures, or higher than lead for enhanced energy transfer while maintaining the other advantages of the instant invention.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: March 21, 2006
    Inventors: James Robert Allen, Michael B Katz
  • Patent number: 7000525
    Abstract: A shot pellet that, has an inner core of a material such tungsten carbide, that is coated with a layer of bismuth. This coating is molecularly bonded to the tungsten carbide and is not an alloy. The unique properties of the shot pellet allow its density to be tailored. Under this process, the effective density of the pellet can be made to be identical to lead for direct replacement in current lead loading formulations. Additionally, the density can be made to be lower than lead for shotguns requiring low barrel pressures, or higher than lead for enhanced energy transfer while maintaining the other advantages of the instant invention.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: February 21, 2006
    Inventors: James Robert Allen, Michael B Katz
  • Patent number: 6860207
    Abstract: A shot shell such as would be utilized in a shotgun or the like, wherein the cartridge forming the shell has a collapsible extension removably or permanently engaging the shot end of the cartridge, with the cartridge configured to provide a un-compressed length of, for example, 2.50 inches (the minimum length of shell for conventional automatic or semi-automatic, magazine fed shotguns. The collapsible extension is configured to be compressed when placed in a spring-fed magazine, so as to provide increased magazine capacity when compared to standard length shells, while expanding when removed by from the magazine during a loading cycle, so as to facilitate reliable placement of the shell into the breach from the magazine. The collapsible extension in the loaded cartridge of the present invention is configured to be ejected from the barrel upon firing of the cartridge. The present system thereby provides a means to increase the capacity of conventional automatic or semi-automatic (i.e.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: March 1, 2005
    Inventor: Thomas W. Robertson
  • Patent number: 6823798
    Abstract: Manufacturing processes for articles that are formed from compositions of matter that include powders containing tungsten and at least one binder, as well as articles formed thereby. In some embodiments, the processes include compacting the mixture of powders under a first pressure to yield a desired intermediate structure, then reshaping the structure under a second pressure that is lower than the first pressure to yield the desired article. The compacting steps may include punches and/or dies having different configurations and/or materials of construction. The composition of matter preferably is selected to reflow, or be reshaped, without fragmenting or otherwise disintegrating into discrete particles or particulate. In some embodiments, the compacted intermediate structure and/or final article has an extrusion constant of less than 30,000 psi. In some embodiments, the mixture of powders has an ASTM Hall flowmeter reading for fifty grams through a cone (without tapping) of less than 18 seconds.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: November 30, 2004
    Inventor: Darryl D. Amick
  • Patent number: 6576598
    Abstract: Compositions and methods for ballistic conditioning firearm projectiles, firearms, and firearm components such as bores of barrels, by applying to such items a conditioning composition selected from the group consisting of hexagonal boron nitride, graphite, tungsten disulfide, antimony trioxide, talc, mica, and mixtures thereof, suspended in a carrier comprising a volatile solvent, and a binder selected from the group consisting of cellulosic-, alkyd- and acrylic-resins.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: June 10, 2003
    Inventor: David Thomas Brown
  • Publication number: 20030078170
    Abstract: Compositions and methods for ballistic conditioning firearm projectiles, firearms, and firearm components such as bores of barrels, by applying to such items a conditioning composition selected from the group consisting of hexagonal boron nitride, graphite, tungsten disulfide, antimony trioxide, talc, mica, and mixtures thereof, suspended in a carrier comprising a volatile solvent, and a binder selected from the group consisting of cellulosic-, alkyd- and acrylic-resins.
    Type: Application
    Filed: August 22, 2001
    Publication date: April 24, 2003
    Inventor: David Thomas Brown
  • Patent number: 6502516
    Abstract: A projectile in the form of a sabot shotgun slug assembly includes a cylindrical slug, a cylindrical sabot positioned about the slug and a pressure wad co-acting with the slug and the sabot. The cylindrical slug defines a central bore extending partially therethrough. The slug is preferably made of a deformable metal. The sabot defines a plurality of longitudinally extending internal grooves. The pressure wad has two ends, with a gas seal located at a first end and a post located at a second end. The pressure wad further includes shock-absorbing members formed between the gas seal and the post. The post is positioned within the central bore defined by the slug.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: January 7, 2003
    Inventor: Anthony E. Kinchin
  • Patent number: 6481356
    Abstract: A cartridge including a cartridge case for hunting cartridges including a plastic sole body with a first sector forming a wad having an upper damping formed by two parallel cylindrical bodies acting with a balancing effect on a first plate with motion to be driven by a second plate distanced on an axial pin supporting a column bearing a bullet on coaxial clutches into a contact containment cylindrical seat which seat includes two half parts separated by longitudinal cuts perimetrally extending from a disk-shaped deflagration moment for centrifugal, effect the connection points break with contemporary squeezing in opening of the half parts on the inside wall of the barrel and this permits the bullet movement starting with thrust pulse centering to obviate a possible contact with the same barrel also in presence of a narrowing. After shooting of the bullet the two separated half parts follow the bullet along the barrel falling down at the exit of the barrel while the sole body goes out from the barrel.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: November 19, 2002
    Assignee: Elio Gualandi & C. SRL
    Inventor: Ezio Gualandi
  • Patent number: 6453820
    Abstract: A rotating tubular projectile for increasing the stability of the projectile and the accuracy of the firearm. The rotating tubular projectile includes a cylindrical body having an open first end. The cylindrical body has an axial passageway that extends through the open first end. Additionally, a spiraled airfoil is mounted in the axial passageway of the cylindrical body for impinging a flow of air flowing through the axial passageway. In one embodiment of the present invention the spiraled airfoil rotates the cylindrical body with respect to a longitudinal axis of the cylindrical body as it travels through the barrel and away from the firearm.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: September 24, 2002
    Inventor: Ralph D. Anderson
  • Patent number: 6439124
    Abstract: There is provided a lead-free projectile suitable for use as a bullet to be fired from a pistol or rifle or as a slug to be fired from a shotgun. The projectile core is formed from a high purity tin and has deformation properties similar to that of lead based projectiles without the environmental hazards associated with lead.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: August 27, 2002
    Assignee: Olin Corporation
    Inventors: Keith E. Enlow, Morris C. Buenemann, Jr.