Dumdum Or Mushrooming Patents (Class 102/507)
  • Patent number: 10119797
    Abstract: Techniques and architecture are disclosed for a nose insert for use in a projectile. The nose insert includes a polymer nose element and a metal cap. The polymer nose element includes a rear shank portion and a tapered head portion. Disposed onto the tapered head portion of the polymer nose is the metal cap. The metal includes an outer curved portion that terminates at a forward end in a meplat. In some embodiments, the metal cap prevents deformation of the polymer nose element caused by high stagnation temperatures experienced by the projectile during flight. In some other embodiments, the metal cap includes a locking ridge. The locking ridge is disposed on an inner surface of the metal cap component and interfaces with an outer surface of the tapered head portion of the polymer nose element.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: November 6, 2018
    Assignee: Sig Sauer, Inc.
    Inventor: Thomas J. Burczynski
  • Patent number: 10101137
    Abstract: Techniques and devices are disclosed for a nose insert and a projectile that include a polymer nose element and a metal tip. The polymer nose element includes a tapered head portion and a first shank portion attached to the tapered head portion. The tapered head portion includes a cavity disposed therein. The first shank portion includes a first diameter smaller than a width of the tapered head portion adjacent to the first shank portion. The metal tip disposed in the tapered head portion of the polymer nose element and includes a tapered end and a second shank portion attached to the tapered end. The second shank portion having a second diameter smaller than a width of the tapered end adjacent to the second shank portion. The second shank portion being received in the cavity within the tapered head portion of the polymer nose element.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 16, 2018
    Assignee: Sig Sauer, Inc.
    Inventor: Thomas J. Burczynski
  • Patent number: 10082377
    Abstract: Embodiments of the hingeable ogive projectile disclosed herein include a projectile comprising a nose portion comprising a plurality of slits, the plurality of slits being cut from an outer surface of the nose portion to a central cavity of the nose portion and an open space formed in a meplat at a distal end of the nose portion. The hingeable ogive projectile disclosed herein may be configured to switch from a non-deformed configuration during firing and a deformed configured upon impact with a target. Longitudinal compression of the nose portion causes the nose portion to expand radially and causes a plurality of petals to form from material in the nose portion between consecutive slits. Radial expansion and longitudinal compression of the nose portion cause buckling of a plurality of petals at a hinge point on each of the plurality of petals.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: September 25, 2018
    Assignee: Sig Sauer, Inc.
    Inventors: Jason Imhoff, Ethan Lessard
  • Patent number: 9970739
    Abstract: The invention relates to a projectile (5) with a frangible material, for short-range ammunition.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: May 15, 2018
    Assignee: RUAG AMMOTEC AG
    Inventors: Michael Muster, Donald Meyer
  • Patent number: 9746296
    Abstract: A method of making a projectile that tumbles upon impact. The projectile has a leading portion, a leading portion trailing end, and a leading portion side which forms a leading portion acute angle with the leading portion trailing end. A tip extends from the leading portion and has a tip trailing end and a tip side. The tip side forms a tip acute angle with the tip trailing end.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: August 29, 2017
    Assignee: Ward Kraft, Inc.
    Inventors: Ryan Kraft, Gary Buntain
  • Patent number: 9500455
    Abstract: The invention relates to a projectile having a projectile base (1), an adjoining cylindrical rear region (2), and a front region (3), which is implemented as an ogive, and the projectile having one or two projectile cores (4, 5) and a projectile jacket (6). In order that when the projectile strikes a game carcass, the projectile core and the projectile jacket begin to deform simultaneously up to twice or three times the projectile diameter, it is proposed that the projectile core (4) be soldered in the cylindrical rear region (2) to the projectile jacket (6) over its entire axial length.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: November 22, 2016
    Assignee: RUAG AMMOTEC GMBH
    Inventor: Heinz Riess
  • Patent number: 9366512
    Abstract: A three component bullet with an improved core retention feature and a method of manufacturing the bullet includes a cylindrical jacket having an open end and a closed end containing a malleable metal core which is forced into a forming die having a bottleneck shaped interior, wherein the outside diameter of the open-ended forward portion of the jacket is smaller than the outside diameter of its closed rearward portion. The open end of the pre-form may be dropped through or forced through a malleable non-rigid locking band. A relatively tight-fitting punch enters the open end of the pre-form, to radially swell the core and subsequently portions of the jacket fore and aft of the non-rigid locking band, thereby securing the non-rigid locking band in place. An inwardly-extending annular band of jacket material embeds itself into the core material to lock the core inside the jacket.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: June 14, 2016
    Assignee: RA Brands, L.L.C.
    Inventors: Thomas J. Burczynski, Jason Imhoff
  • Patent number: 9188414
    Abstract: A low-cost, reduced friction expanding bullet with an improved core retention feature and a method of manufacturing the bullet is described wherein a cylindrical jacket containing a compacted malleable metal core having an open end and a closed end is forced into a forming die having a bottleneck shaped interior resulting in a bottleneck shaped pre-form wherein the outside diameter of the open-ended forward portion of the jacket is smaller than the outside diameter of its closed rearward portion and wherein a transition shoulder separates the two diameters. The pre-form is then placed in a profile die wherein a base punch exerts an axial force against said pre-form which axially collapses a portion of the jacket wall forward of the transition shoulder subsequently forcing said portion of the jacket wall radially inwardly providing a reduction in bearing surface and forming an internal core-locking radius while at the same time forming an ogival bullet nose.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: November 17, 2015
    Assignee: RA Brands, L.L.C.
    Inventor: Thomas J. Burczynski
  • Patent number: 9121677
    Abstract: A bullet with controlled fragmentation has a core in the form of a generally cylindrical body having a forward end and a rear end and intermediate side portions extending there between, the forward end of the core defining a cavity, a jacket encompassing the rear end and at least selected portions of the sides of the core, the jacket having a sidewall having a first drive band portion having a first wall thickness, and a second portion immediately forward of the drive band portion having a second thickness less than the first thickness, the exterior of the jacket defining a cannelure groove encircling the bullet, and the cannelure groove being positioned forward of the first drive band portion. The drive band may have forward edge defining a step. The bullet of the present invention may also be received in the case mouth of a rimless case and be partially protruding therefrom.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 1, 2015
    Assignee: HORNADY MANUFACTURING COMPANY
    Inventor: David E. Emary
  • Patent number: 9046333
    Abstract: A bullet having a jacket, having a rear section, and a front section, having an open front end; a rear core disposed in the rear section of the jacket and bonded thereto; and a front core, separate from the rear core, disposed in the front section of the jacket, adjacent the open front end. The front section of the jacket can expand after impact with the target and release the front core to form an initial volume of disruption, while the rear core and at least the rear section of the jacket penetrate, past the initial volume of disruption.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: June 2, 2015
    Assignee: Olin Corporation
    Inventor: Kyle A. Masinelli
  • Patent number: 9003974
    Abstract: The invention relates to a projectile having a cylindrical hole (15) arranged at the nose as seen in the firing direction, said hole (15) extending coaxially with the longitudinal axis (12) of the projectile and a projectile nose (1) being inserted into this hole, wherein the longitudinal axis (12) of the projectile at the same time also forms the longitudinal axis of the projectile nose (1). In order that accelerated expansion of the projectile occurs when the projectile strikes a soft medium, it is proposed according to the invention that an open hollow channel (5) is introduced in the projectile nose (1) coaxially with the longitudinal axis (12), said hollow channel (5) extending from the front end (22) to the rear end (23) of the projectile nose (1), as seen in the firing direction, and a membrane (6) is arranged in the hollow channel (5), said membrane dividing the hollow channel (5) into two hollow-channel portions (5a, 5b).
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: April 14, 2015
    Assignee: Ruag Ammotec GmbH
    Inventors: Erich Muskat, Heinz Rieβ
  • Patent number: 8950333
    Abstract: A three component bullet with an improved core retention feature and a method of manufacturing the bullet includes a cylindrical jacket having an open end and a closed end containing a malleable metal core which is forced into a forming die having a bottleneck shaped interior, wherein the outside diameter of the open-ended forward portion of the jacket is smaller than the outside diameter of its closed rearward portion. The open end of the pre-form may be dropped through or forced through a malleable non-rigid locking band. A relatively tight-fitting punch enters the open end of the pre-form, to radially swell the core and subsequently portions of the jacket fore and aft of the non-rigid locking band, thereby securing the non-rigid locking band in place. An inwardly-extending annular band of jacket material embeds itself into the core material to lock the core inside the jacket.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: February 10, 2015
    Assignee: RA Brands, L.L.C.
    Inventors: Thomas J. Burczynski, Jason Imhoff
  • Patent number: 8881654
    Abstract: Ammunition which includes a bullet having an effective caliber that is larger than its nominal caliber, comprised of a bullet body with a longitudinal cavity in the forward end, and one or more bores extending from the cavity to bore openings on the exterior of the bullet. In use, target media is gathered in the cavity and ejected under force through the bore openings, increasing the damage done by the bullet. Optional embodiments include filled, irritant payload, and jacketed embodiments.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: November 11, 2014
    Assignee: LWS Ammunition LLC
    Inventor: Lueder Seecamp
  • Publication number: 20140230683
    Abstract: A low-cost, reduced friction expanding bullet with an improved core retention feature and a method of manufacturing the bullet is described wherein a cylindrical jacket containing a compacted malleable metal core having an open end and a closed end is forced into a forming die having a bottleneck shaped interior resulting in a bottleneck shaped pre-form wherein the outside diameter of the open-ended forward portion of the jacket is smaller than the outside diameter of its closed rearward portion and wherein a transition shoulder separates the two diameters. The pre-form is then placed in a profile die wherein a base punch exerts an axial force against said pre-form which axially collapses a portion of the jacket wall forward of the transition shoulder subsequently forcing said portion of the jacket wall radially inwardly providing a reduction in bearing surface and forming an internal core-locking radius while at the same time forming an ogival bullet nose.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: RA BRANDS, L.L.C.
    Inventor: Thomas J. Burczynski
  • Patent number: 8434410
    Abstract: A round of ammunition for an assault rifle or the like includes a cartridge and a bullet or projectile. The cartridge includes a rear portion and a forward portion with a reduced diameter while the rear portion is dimensioned to fit into the breach of a rifle and defines a hollow chamber or interior volume for a mass of gun powder and primer. The forward portion of the cartridge joins a bullet. The bullet includes a bullet shaped rounded lead tip and an aerodynamically shaped forward portion including a tapered shell and a solid cylindrically shaped lead middle portion. The forward portion also includes an axial steel rod between the tip and the middle portion. The bullet also includes a rear portion including a tapered shell surrounding a second hollow chamber with a small opening in the distal part of the bullet.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: May 7, 2013
    Inventor: Salem A. S. AlSalem
  • Publication number: 20130092042
    Abstract: A jacketed bullet comprising a dense core of a first material substantially surrounded by and bonded to a jacket of a second material, wherein the thickness of the jacket varies.
    Type: Application
    Filed: August 9, 2012
    Publication date: April 18, 2013
    Inventor: Kyle A. Masinelli
  • Patent number: 8256352
    Abstract: A jacketed bullet comprising a dense core of a first material substantially surrounded by and bonded to a jacket of a second material, wherein the thickness of the jacket varies.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: September 4, 2012
    Assignee: Olin Corporation
    Inventor: Kyle A. Masinelli
  • Patent number: 8186277
    Abstract: A bullet comprising a lead-free body having a tail section and a nose section. The nose section has an ogived outer surface and a forward terminus. The body further has an opening at the terminus, and a cavity in the nose section. The cavity extends rearward from the opening to an intermediate section of the body. The cavity includes a forward sidewall having at least a generally frusto-conical shape that converges rearward from the opening to a transition area. The cavity further includes a rear sidewall extending rearward from the transition area at a different angle than the forward sidewall.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: May 29, 2012
    Assignee: Nosler, Inc.
    Inventor: Gary D. King
  • Patent number: 8141494
    Abstract: The decomposition of a projectile in a target body, particularly a hunting projectile in wild animals after penetration therein, determines the energy output of the projectile and thereby the effect of the shot. For projectiles with double cores, the properties of the ingredients used in the cores decisively affect the decomposition and particularly the deformation behavior of the cores. According to the invention, a partial decomposition projectile comprising two cores is provided with one solid core (3) made of a material suited to said projectile and the second core (4) is made of a powder (5) consisting of metal or ceramic ingredients, said powder being pressed to become free of shrink holes, in order to improve decomposition behavior control.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: March 27, 2012
    Assignee: RUAG Ammotec GmbH
    Inventors: Heinz Riess, Erich Muskat
  • Patent number: 8087359
    Abstract: Ammunition consists of a full-caliber or sub-caliber bullet, of the type comprising a substantially rigid bullet body and a deformable part, the deformable part consisting of an approximately cylindrical expansion ring, the rear part of which is fitted onto the front part of the bullet body.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: January 3, 2012
    Inventor: Jean-Claude Sauvestre
  • Publication number: 20100224093
    Abstract: A partial fragmentation bullet comprising a nose core, which forms a fragmenting portion of the partial fragmentation bullet, and a rear core, which forms a penetration portion of the partial fragmentation bullet. The nose core and the rear core are made of materials having the same level of hardness. This level of hardness is in the Brinell hardness range.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 9, 2010
    Applicant: Brenneke GmbH
    Inventors: Ralph Wilhelm, Klaus Ripperger
  • Patent number: 7765934
    Abstract: A small-bore projectile comprises a ductile outer jacket, a hard core, and a hollow jacket core. Kinetic energy of the projectile is substantially transmitted to the hard core when a target is hit such that said hard core penetrates the target. The outer jacket is supported by the jacket core that is located on the inside and mushrooms up into a deformed state upon impact without fragmenting. The projectile has good flying behavior and great final ballistic performance and can be produced in an entirely lead-free manner.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: August 3, 2010
    Assignee: Ruag Ammotec
    Inventors: Peter Spatz, Hans Baumgartner, Fritz Schaer
  • Patent number: 7658137
    Abstract: Methods and articles are provided for frangible slugs. A method of manufacturing a frangible slug includes heating substantially spherical metallic powdered particles, where substantially all of the powdered particles have diameters larger than 125 microns and smaller than 250 microns, to form heated powdered particles. The method includes heating a microcrystalline wax to form a melted wax. The method also includes combining the heated powdered particles with the melted wax to form a liquid mixture. The method further includes filling a payload cavity of a slug container with the liquid mixture to form a liquid mixture payload, where the slug container is configured to retain a solidified frangible payload as the frangible slug until impact with a solid object.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: February 9, 2010
    Assignee: Stresau West, Inc.
    Inventor: Michael A. Romero
  • Publication number: 20100018430
    Abstract: A jacketed bullet has a core of a dense metal or metal alloy, an inner jacket at least partially surrounding and bonded to the core; and an outer jacket at least partially surrounding the inner jacket and core.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 28, 2010
    Inventors: Kyle A. Masinelli, Gerald T. Eberhart, Brian D. Roberts
  • Publication number: 20090293755
    Abstract: The decomposition of a projectile in a target body, particularly a hunting projectile in wild animals after penetration therein, determines the energy output of the projectile and thereby the effect of the shot. For projectiles with double cores, the properties of the ingredients used in the cores decisively affect the decomposition and particularly the deformation behavior of the cores. According to the invention, a partial decomposition projectile comprising two cores is provided with one solid core (3) made of a material suited to said projectile and the second core (4) is made of a powder (5) consisting of metal or ceramic ingredients, said powder being pressed to become free of shrink holes, in order to improve decomposition behavior control.
    Type: Application
    Filed: July 30, 2004
    Publication date: December 3, 2009
    Inventors: Heinz Riess, Erich Muskat
  • Patent number: 7299750
    Abstract: Especially in hunting, the choice of bullets has to be such that it is in keeping with the wild animals to be hunted. According to the desired effect on the target, deformation bullets or partial fragmentation bullets are used. Since both types of bullets are different, the position of the point of impact from the same weapon is different. According to the type of bullet used, the weapon must be oriented differently in relation to the target. This can be obstructive and if insufficient attention is paid, can result in misses.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: November 27, 2007
    Assignee: Ruag Ammotec GmbH
    Inventors: Irene Schikora, Friedrich Riess, Bernd Krause
  • Patent number: 7171905
    Abstract: A hollow point bullet and methods for fabricating the same are disclosed. An example hollow point bullet includes a recess opened at a tip of the bullet that includes a first portion and a second portion. The first portion opens to the tip of the bullet and has a square cross-section, and the second portion has a circular cross-section.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 6, 2007
    Assignee: Heckler & Koch, GmbH
    Inventors: Robert Hirt, Heinz Seeger, Marc Roth, Hans-Jürgen Kron
  • Patent number: 7036433
    Abstract: A projectile 10 for gun ammunition of a size not greater than 50 caliber comprising a solid metal jacket 82 of generally cup-shaped geometry and having a closed end 102 and an open end 88, a core 84 formed from a mixture of metal powders, not including lead, which mixture is cold-pressed into a self-supporting compact and disposed within said jacket, the core incompletely filling the jacket, an ogive 14 having an outer surface and defined on the initially open end of said jacket, and a conical tip 122 defined on the distal end 118 of said ogive, the tip having an outer surface 22 which defines an angle with respect to the longitudinal centerline 24 of the projectile that is greater than the angle defined by the ogive with respect to the longitudinal centerline of the projectile. A method is disclosed.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: May 2, 2006
    Inventor: Harold F. Beal
  • Patent number: 6805057
    Abstract: A bullet for law enforcement and personal defense use capable of meeting current FBI and IWBA standards and comprised of a jacket of malleable metal having a cylindrical side wall, tapered nose portion, an open forward end, and a plurality of deep longitudinally extending scores formed in the nose portion and defining petals therebetween which extend rearwardly from its mouth, and a malleable core mounted within the jacket and having a plurality of separate segments extending forwardly from its cylindrical base into the nose portion of the jacket and terminating adjacent said open jacket end in a shallow hollowed point, the bullet being capable of piercing substantial barrier materials before entering its target and thereafter expanding radially to about 1.5-2.0 times its diameter, while traveling 9-16 inches within its target.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: October 19, 2004
    Assignee: Federal Cartridge Corporation
    Inventors: Douglas W. Carr, Lawrence P. Head
  • Patent number: 6789484
    Abstract: Projectiles or war-heads with an inner arrangement for the formation of bulging zones (4,4a) are proposed, comprised of an enclosed bulging medium (1) which is terminal-ballistically substantially ineffective and is radially enclosed by a penetration material (2) which is terminal-ballistically effective, with the bulging medium (1) having a lower density as compared with the enclosing penetration material (2). This leads to the effect that on impact or on penetrating a target plate (3) the bulging medium (1) remains behind relative to the encompassing terminal-ballistic effective body (2) and is laterally increasingly bulged by the bulging material (1) which continues to flow in from behind. As a result of the high pressures, a conical (crowned) pressure and bulging zone (4,4a) is formed dynamically, which zone radially widens or fragments the passing ambient effective material (5,5a).
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: September 14, 2004
    Assignee: furturtec AG c/o Beeler + Beeler Treuhand AG
    Inventor: Gerd Kellner
  • Patent number: 6776101
    Abstract: A bullet that has a controlled fragmentation on impact with a target. The bullet includes a generally cylindrical body having a nose, a mid-portion and a heel. The body includes an aperture that starts at the nose, extends past the mid-portion of the bullet and ends near the heel of the bullet. The aperture also includes ay least one scored area along the sides of the aperture and extending along at least some or all of the aperture. The heel portion includes a scored area that terminates at a location that aligns with the scored area along the sides of the aperture in the bullet.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: August 17, 2004
    Inventor: Richard K. Pickard
  • Patent number: 6772695
    Abstract: Projectiles or war-heads with an inner arrangement for the formation of bulging zones (4,4a) are proposed, comprised of an enclosed bulging medium (1) which is terminal-effective ballistically substantially ineffective and is radially enclosed by a penetration material (2) which is terminal-ballistically effective, with the bulging medium (1) having a lower density as compared with the enclosing penetration material (2). This leads to the effect that on impact or on penetrating a target plate (3) the bulging medium (1) remains behind relative to the encompassing terminal-ballistic effective body (2) and is laterally increasingly bulged by the bulging material (1) which continues to flow in from behind. As a result of the high pressures, a conical (crowned) pressure and bulging zone (4,4a) is formed dynamically, which zone radially widens or fragments the passing ambient effective material (5,5a).
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: August 10, 2004
    Assignee: futurtec AG c/o Beeler + Beeler Treuhand AG
    Inventor: Gerd Kellner
  • Patent number: 6772696
    Abstract: Projectiles or war-heads with an inner arrangement for the formation of bulging zones (4,4a) are proposed, comprised of an enclosed bulging medium (1) which is terminal-ballistically substantially ineffective and is radially enclosed by a penetration material (2) which is terminal-ballistically effective, with the bulging medium (1) having a lower density as compared with the enclosing penetration material (2). This leads to the effect that on impact or on penetrating a target plate (3) the bulging medium (1) remains behind relative to the encompassing terminal-ballistic effective body (2) and is laterally increasingly bulged by the bulging material (1) which continues to flow in from behind. As a result of the high pressures, a conical (crowned) pressure and bulging zone (4,4a) is formed dynamically, which zone radially widens or fragments the passing ambient effective material (5,5a).
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: August 10, 2004
    Assignee: futurtec AG c/o Beeler + Beeler Treuhand AG
    Inventor: Gerd Kellner
  • Publication number: 20040129164
    Abstract: Projectiles or war-heads with an inner arrangement for the formation of bulging zones (4,4a) are proposed, comprised of an enclosed bulging medium (1) which is terminal-ballistically substantially ineffective and is radially enclosed by a penetration material (2) which is terminal-ballistically effective, with the bulging medium (1) having a lower density as compared with the enclosing penetration material (2). This leads to the effect that on impact or on penetrating a target plate (3) the bulging medium (1) remains behind relative to the encompassing terminal-ballistic effective body (2) and is laterally increasingly bulged by the bulging material (1) which continues to flow in from behind. As a result of the high pressures, a conical (crowned) pressure and bulging zone (4,4a) is formed dynamically, which zone radially widens or fragments the passing ambient effective material (5,5a).
    Type: Application
    Filed: August 4, 2003
    Publication date: July 8, 2004
    Inventor: Gerd Kellner
  • Publication number: 20040129163
    Abstract: Projectiles or war-heads with an inner arrangement for the formation of bulging zones (4,4a) are proposed, comprised of an enclosed bulging medium (1) which is terminal-ballistically substantially ineffective and is radially enclosed by a penetration material (2) which is terminal-ballistically effective, with the bulging medium (1) having a lower density as compared with the enclosing penetration material (2). This leads to the effect that on impact or on penetrating a target plate (3) the bulging medium (1) remains behind relative to the encompassing terminal-ballistic effective body (2) and is laterally increasingly bulged by the bulging material (1) which continues to flow in from behind. As a result of the high pressures, a conical (crowned) pressure and bulging zone (4,4a) is formed dynamically, which zone radially widens or fragments the passing ambient effective material (5,5a).
    Type: Application
    Filed: August 4, 2003
    Publication date: July 8, 2004
    Inventor: Gerd Kellner
  • Patent number: 6745698
    Abstract: A frangible projectile for gun ammunition wherein the projectile includes a core formed from one or more metal powders which are pressed into a self-supporting compact and incorporated into a metal jacket. The metal jacket is initially cup-shaped (generally cylindrical in overall geometry) with an open end and a closed end. In accordance with one embodiment of the present invention the closed end of the jacket becomes the trailing end of the projectile. In another embodiment, the closed end of the jacket becomes the leading end of the projectile. In either embodiment, that surface of the closed end of the jacket which faces inwardly of the volume of the jacket is indented and stressed over substantially its entire area in accordance with a pattern which enhances the frangibility of this closed end of the projectile when the projectile strikes a target.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: June 8, 2004
    Assignee: Doris Nebel Beal Inter Vivos Patent Trust
    Inventor: Harold F. Beal
  • Patent number: 6732657
    Abstract: A method of manufacturing a soft point bullet and the bullet resulting there from. The method comprises forming a bullet core of a first material plated with a second material; providing a cavity in one end of the plated core of preferably polygonal shape and positioning a shaped blank of plating material into the cavity; and forming the core into the final bullet size and shape by extruding the core into the cavity to form the bullet nose and encapsulate the shaped blank within the bullet.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: May 11, 2004
    Assignee: Alliant Techsystems, Inc.
    Inventor: Brett Mathew Olin
  • Patent number: 6708619
    Abstract: A cartridge shell 10 comprises a main body 12 defining a volume 14 for holding energetic material. The main body 12 has a first end 16 for location adjacent a toe 48 of a hole 46 and a second end 18 directed to the collar 50 of hole 46. The second end 18 is tapered to reduce in transverse area away from the first end to form a point or wedge-like member 20.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: March 23, 2004
    Assignee: Rocktek Limited
    Inventors: Edward Tota, Nigel Rogers
  • Patent number: 6684792
    Abstract: A munition in the form of a projectile contains a dart having a body terminating in a front tip and ductile hammer block in the form of a ferrule engaging at least a part of the dart. The dart is formed of sections the diameters of which increase from the back to the front of the dart body, forming support shoulders. A recess in the hammer block has a shape corresponding to the dart body shape received in the hammer block. Hammer block sections form thrust shoulders which engage the corresponding dart support shoulders. When the projectile impacts a target, the thrust shoulders push against the dart support shoulders, causing the ductile hammer block to open and flare out.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: February 3, 2004
    Inventor: Jean-Pierre Denis
  • Patent number: 6675718
    Abstract: A hydraulic cylinder projectile assures radial expansion of the projectile upon impact at low velocity with a target. A hydraulic cylinder insert is disposed in an axial central bore of a projectile body. The hydraulic cylinder insert has a closed leading end, and a compression ram element is disposed in the leading end of the insert. Liquid is disposed in the cylinder aft of the compression ram element. The hydraulic cylinder insert and projectile and the method of producing the same are described and claimed.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: January 13, 2004
    Inventor: Bobby J. Parker
  • Patent number: 6659013
    Abstract: Projectiles or war-heads with an inner arrangement for the formation of bulging zones (4,4a) are proposed, comprised of an enclosed bulging medium (1) which is terminal-ballistically substantially ineffective and is radially enclosed by a penetration material (2) which is terminal-ballistically effective, with the bulging medium (1) having a lower density as compared with the enclosing penetration material (2). This leads to the effect that on impact or on penetrating a target plate (3) the bulging medium (1) remains behind relative to the encompassing terminal-ballistic effective body (2) and is laterally increasingly bulged by the bulging material (1) which continues to flow in from behind. As a result of the high pressures, a conical (crowned) pressure and bulging zone (4,4a) is formed dynamically, which zone radially widens or fragments the passing ambient effective material (5,5a).
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: December 9, 2003
    Assignee: futurec AG c/o Beeler + Beeler Treuhand AG
    Inventor: Gerd Kellner
  • Patent number: 6629485
    Abstract: The method of making a non-lead hollow point bullet has the steps of a) compressing an unsintered powdered metal composite core into a jacket, b) punching a hollow cavity tip portion into the core, c) seating an insert, the insert having a hollow point tip and a tail protrusion, on top of the core such that the tail protrusion couples with the hollow cavity tip portion, and d) swaging the open tip of the jacket.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: October 7, 2003
    Assignee: UT-Battelle, LLC
    Inventors: Norman L. Vaughn, Richard A. Lowden
  • Patent number: 6591730
    Abstract: Method of manufacture of a multi-component projectile 14 for gun ammunition 16 including the steps of providing a uniformly spherical ball 18 of a ductile metal, either solid metal or a self-supporting pressed compact of metal powder particles, inserting the metal ball into the open end 10 of a cup-shaped jacket 54 which houses at least one core 30, the ball being disposed between that end of the core adjacent the open end of the jacket and the open end of the jacket. Axially directed pressure against the ball deforms the ball into a generally flat disc 36. Simultaneously, the core 30 may be seated within the closed end 26 of the jacket. Thereafter, the jacket/core/disc combination is die-formed to define an ogive 42 at the open end of the jacket.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: July 15, 2003
    Assignee: Doris Nebel Beal Intervivos Patent Trust
    Inventor: Harold F. Beal
  • Patent number: 6581503
    Abstract: A method of manufacturing a soft point bullet and the bullet resulting there from. The method comprises forming a bullet core of a first material plated with a second material; providing a cavity in one end of the plated core of preferably polygonal shape and positioning a shaped blank of plating material into the cavity; and forming the core into the final bullet size and shape by extruding the core into the cavity to form the bullet nose and encapsulate the shaped blank within the bullet.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: June 24, 2003
    Assignee: Alliant Techsystems Inc.
    Inventor: Brett Mathew Olin
  • Patent number: 6581523
    Abstract: A projectile for gun ammunition of 50 caliber or less, the projectile including an outer jacket having a longitudinal centerline and which houses one or more cores made up of a powder or mixture of powders comprising a frangible disc including a central region thereof formed of a compressed unbonded quantity of particles of at least one metal powder and an outer peripheral skin defined by melded ones of said at least one metal powder particles. Manufacture of the disc, a projectile including the disc and a round of gun ammunition including the disc-containing projectile are disclosed.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: June 24, 2003
    Assignee: Doris Nebel Beal Intervivos Patent Trust
    Inventor: Harold F. Beal
  • Patent number: 6546875
    Abstract: The non-lead hollow point bullet of the instant invention comprises a mixed construction slug further comprising, a monolithic metal insert having a tapered (preferred conical) hollow point tip and a tapered (preferred conical) tail protrusion, and an unsintered powdered metal composite core in tandem alignment with the insert. The core has a hollow tapered (preferred conical) cavity tip portion coupled with the tapered (preferred conical) tail protrusion on the insert. An open tip jacket envelops at least a portion of the insert and the core. The jacket is swaged at the open tip.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: April 15, 2003
    Assignee: UT-Battelle, LLC
    Inventors: Norman L. Vaughn, Richard A. Lowden
  • Patent number: 6530328
    Abstract: A bullet comprised of a jacket of malleable metal having a closed nose portion and a rear end portion defined by a cylindrical wall, the closed nose portion having wall-weakening areas encapsulating a forward core made of a deformable material which promptly deforms, collapses axially, and expands radially to a substantial extent along with the weakened wall areas, when the bullet strikes a target. The wall weakened areas of the nose portion are ruptured by the core material to produce a collapsing and readily expanding action. These weakened wall areas are in the form of longitudinally extending, deep, internal or external, circumferentially spaced grooves with underlying web areas which are ruptured by the core material, to produce the collapsing and expanding action.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: March 11, 2003
    Assignee: Federal Cartridge Company
    Inventors: Thomas J. Burczynski, Lawrence P. Head, Craig S. Pilarski
  • Publication number: 20020152915
    Abstract: The non-lead hollow point bullet of the instant invention comprises a mixed construction slug further comprising, a monolithic metal insert having a tapered (preferred conical) hollow point tip and a tapered (preferred conical) tail protrusion, and an unsintered powdered metal composite core in tandem alignment with the insert. The core has a hollow tapered (preferred conical) cavity tip portion coupled with the tapered (preferred conical) tail protrusion on the insert. An open tip jacket envelops at least a portion of the insert and the core. The jacket is swaged at the open tip.
    Type: Application
    Filed: April 23, 2001
    Publication date: October 24, 2002
    Inventors: Norman L. Vaughn, Richard A. Lowden
  • Patent number: 6439125
    Abstract: The invention relates to a bullet having a tapered nose and a cylindrical base. The base is provided with an annular groove having a diameter less than the bore diameter of the barrel of the gun from which it is fired to reduce the force required to move the bullet through the barrel to increase the muzzle velocity and kinetic energy of the bullet.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: August 27, 2002
    Assignee: Friedkin Companies, Inc.
    Inventor: Herman L. Carter
  • Publication number: 20020078851
    Abstract: A munition in the form of a projectile contains a shell having a body terminating in a front tip and a ductile hammer block in the form of a ferrule engaging at least a part of the shell. The shell is formed of sections the diameters of which increase from the back to the front of the shell body, forming support shoulders. A recess in the hammer block has a shape corresponding to the shell body shape received in the hammer block. Hammer block sections form thrust shoulders which engage the corresponding shell support shoulders. When the projectile impacts a target, the thrust shoulders push against the shell support shoulders, causing the ductile hammer block to open and flare out.
    Type: Application
    Filed: November 26, 2001
    Publication date: June 27, 2002
    Inventor: Jean-Pierre Denis