Projectiles Patents (Class 102/501)
  • Patent number: 6016754
    Abstract: There is provided a lead-free projectile suitable for use as a bullet to be fired from a pistol or rifle. The projectile has a metallic jacket enveloping a metallic core. The 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: December 18, 1997
    Date of Patent: January 25, 2000
    Assignee: Olin Corporation
    Inventors: Keith E. Enlow, Morris C. Buenemann, Jr.
  • Patent number: 6012393
    Abstract: A penetration warhead of a positively position-controlled roll-stabilized missile. The warhead has a main axis and includes a nose section which is asymmetric with respect to the main axis of the warhead, the asymmetry is selected such that upon impacting a target the forces acting on the nose section create a moment about the warhead's center of gravity which directs the penetration warhead in a direction which is substantially toward the perpendicular, thereby increasing the warhead's penetration depth.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: January 11, 2000
    Assignee: State of Israel-Ministry of Defense, Rafael-Armamient Dieve
    Inventor: Zeev Tal
  • Patent number: 5929370
    Abstract: A projectile is propelled from a location in air, through an air/water interface, and toward a submerged underwater object. The projectile includes a forward end that forms a cavitation void around the projectile in water, avoiding water drag on the remainder of the projectile. The projectile further includes an outwardly flared or finned rearward end that aerodynamically stabilizes the projectile in air and flare stabilizes it in water, in each case against yaw.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: July 27, 1999
    Assignee: Raytheon Company
    Inventors: Jeffrey A. Brown, Reed Copsey, Marshall Tulin, Roy Kline
  • Patent number: 5925845
    Abstract: An improved shoot-through warhead cover is constructed of a low density material, such as polyethylene foam, in a dome-like shape. An anterior surface of the shoot-through cover is configured so as to be in proximate mating relationship with the exterior surface of an EFP liner member. The exterior surface of the cover is also aerodynamically contoured to match the external shape of a receiving warhead delivery vehicle body.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: July 20, 1999
    Assignee: Alliant Techsystems Inc.
    Inventors: Robert E. Tompkins, Erling M. Danielson
  • Patent number: 5915694
    Abstract: An aerial decoy comprising a fuselage having forward and aft ends. Disposed within the fuselage are a plurality of decoy discs. Rotatably connected to the forward end of the fuselage is a ram air turbine which is cooperatively engaged to the decoy discs such that the rotation of the ram air turbine facilitates the dispensation of the decoy discs from the aft end of the fuselage.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: June 29, 1999
    Inventor: Roger D. Brum
  • Patent number: 5880398
    Abstract: A dual-purpose bullet is provided consisting of a thermoplastic body, a base cap, and a pressed powder core. The bullet in the preferred embodiment can either penetrate destroying and disrupting large volumes of human tissue or not penetrate the human tissue delivering a strong shock event and creating a thermal nuisance. The lethal mode is achieved by a high-velocity launch of the bullet without ignition of the igniter mixture and pressed powder core. The less-than-lethal mode is achieved by a low-velocity launch with ignition of first the pressed powder core and softening of the plastic projectile body.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: March 9, 1999
    Assignee: Scientific Solutions Inc.
    Inventors: Michael Gerard Crilly, Maurice Edward Grudza, David Charles Jann, Hugh Harper Gibbs
  • Patent number: 5841058
    Abstract: The construction and arrangement of projectile bearing surface interfaces rearward and forward of a recessed surface chamber of the projectile interface conjointly with the interfaces of bore wall areas segmented by recessed bore chambers which in conjunction effect the deployment/transport/dispersement/development/modulation and transformation of explosive propellant charges sequentially primed and activated rearward and forwardly of the projectile along the bore and in bore wall chambers captively converting high static gas pressure to expansively relieved dynamic propellant gas pressure directly at the projectile reducing firearm barrel recoil while energizing projectile movement along the bore in a closed-system of thermodynamic propellant energy for free flight purposes.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: November 24, 1998
    Inventor: John Robert Manis
  • Patent number: 5824944
    Abstract: A projectile for an industrial ballistic tool is formed from zinc or a zinc based alloy. The projectile has symmetry about a longitudinal axis and a rear portion of the projectile engages rifling, either within the barrel of the industrial ballistic tool or in a rifled extension, imparting ballistic stability. The projectile is particularly suited for high temperature industrial applications, such as removal of "clinkers" from cement kilns or lime kilns or removal of a plug when tapping an electric arc furnace, as used in the manufacture of metallic alloys such as ferrosilicon. The vaporization temperature of the projectile is sufficiently low that after effecting removal of the clinker or plug, the projectile vaporizes and does not contaminate the kiln, furnace or end product such as lime, cement or metallic alloy.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: October 20, 1998
    Assignee: Olin Corporation
    Inventors: Jack D. Dippold, Melvin W. Harris, Mark R. Miller
  • Patent number: 5801323
    Abstract: A shaped-charge warhead for munitions according to the invention includes a triggering mechanism and an explosive charge located inside an envelope and in contact with a covering designed to be set in motion in a direction of action by the detonation of the explosive charge. The envelope is essentially cylindrical and the covering is located such that the direction of action is essentially perpendicular to the axis of the envelope. The triggering mechanism is located in the vicinity of the cylindrical envelope and on the other side of the axis relative to the covering.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: September 1, 1998
    Assignee: Giat Industries
    Inventor: Alain Kerdraon
  • Patent number: 5798478
    Abstract: An ammunition projectile of enhanced flight characteristics, having a boat tail portion and including a circular land provided on the rear surface of the boat tail portion and concentric with the longitudinal centerline of the projectile, the land having a circular concave wall extending from the flat rear face of the boat tail portion to a circular flat surface of the land. Among other things, the projectile exhibits a lesser rate of velocity deceleration along its flight path to a target than like projectiles that do not include the land.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: August 25, 1998
    Assignee: Cove Corporation
    Inventor: Harold F. Beal
  • Patent number: 5792980
    Abstract: A device for the production of explosive formed projectiles includes a cag with an explosive filling, an ignition device arranged at the bottom and a disc-shaped metal insert covering the top of the explosive filling. In order to produce several projectiles or a single projectile composed of several such projectiles with a large l/d ratio, the insert includes at least two discs, arranged directly behind each other.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: August 11, 1998
    Assignee: Fraunhofer-Gesellschaft zur Forderung der ange-wandten Forschung e.v.
    Inventor: Klaus Weimann
  • Patent number: 5788178
    Abstract: A small caliber laser-guided bullet having a self-contained guidance system is disclosed including on-board laser sensors and navigational circuits capable of detecting a laser target signature, determining the deviation of the bullet from an optimum projectory along which the bullet would impact a hostile target, and generating an electrical signal to piezo electric steering control surfaces to effect a change in the course of the bullet. The guided bullet utilizes a plurality of symmetrically-arranged laser sensor elements which are positioned about a longitudinal axis of the bullet. The laser sensor elements function to transmit optical radiation from the laser target beam to photo detector elements housed within the bullet. The electrical signals from the photo detector elements are then amplified and processed by semiconductor logic circuits to produce the functions required by the steering control surfaces to translate the bullet to the optimum trajectory.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: August 4, 1998
    Inventor: Rolin F. Barrett, Jr.
  • Patent number: 5763819
    Abstract: The present invention relates generally to small arms bullets and relates in particular to frangible bullets and ordinance which fragments following penetration of a variety of obstacles prior to encountering the intended target zone. The disclosure relates specifically to small arms bullets which have a high likelihood of fragmentation after target zone penetration causing a significant crush cavity following passage through obstacles including clothing, glass, building materials and other structures. The disclosed bullet design is produced in a simple and inexpensive process, provides high accuracy and fragmentation and penetration in a 5 to 15 inch target zone, at either sonic or subsonic velocities, following penetration of shielding obstacles. The bullet disclosed is of a weight and design which will permit operation at sonic or subsonic velocities, without jamming, in civilian and military small arms including automatic weapons.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: June 9, 1998
    Inventor: James W. Huffman
  • Patent number: 5758446
    Abstract: The present invention relates to the fire arm industry and more particularly to a system that impresses a bar type code into the lead bullet that has been fired from a gun. The identifying markings are placed on the gun barrel lands with as little visibility as possible but enough to form the code to identify the fired bullet as being from one specific handgun or rifle. The code markings may be placed on the barrel, without effecting its operation in any way. The microscopic identifying code markings are impressed in to the surface of the lands of the gun barrel and when the firearm is fired the force of the firing forms this particular gun's code on the bullet. These identifying code markings may be placed at the intersection of the chamber and the barrel so that when a bulletted cartridge is placed in the chamber and the gun is fired, the code marks are encoded on both the neck of the brass and the lead bullet surface, forming identical codes.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: June 2, 1998
    Inventor: Richard G. Atchison
  • Patent number: 5744747
    Abstract: The invention relates to a slug generating charge incorporating an explosive charge arranged in an envelope and a liner intended to be set into motion by the detonation of the explosive. The liner, whose thickness decreases between a central part and its periphery, is in contact with the envelope. A plate is placed between the explosive charge and the liner. The plate is of a diameter equal to the inner diameter of the envelope and is in contact with the liner at least at the latter's thinned peripheral part. The material of the plate is selected such that it reduces the velocity transmitted to the peripheral part of the liner by the explosive charge upon its ignition.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: April 28, 1998
    Assignee: Giat Industries
    Inventors: Jean-Luc Renaud-Bezot, Laurent Chauveau, Bernard Ceyrat
  • Patent number: 5728349
    Abstract: A material primarily for sport-shooting ammunition, both pellet ammunition and ball ammunition, including at least the materials zinc and bismuth. The ammunition material includes above 55 percent by weight zinc and the remainder bismuth and tin, where the amount of tin present does not exceed about 10 percent by weight tin.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: March 17, 1998
    Inventor: Leif Persson
  • Patent number: 5725179
    Abstract: A projectile to be, fired from a non-rifled tube includes an elongated foody and a stabilizer secured to the tail end of the forebody for enhancing the projectile flight stability and for imparting spin to the projectile. The stabilizer includes a threaded member that extends integrally into a forward section, a peripheral channel and a grooved aft section. The forward section has a generally smooth cylindrical shape. The peripheral channel extends along the entire peripheral contour of the stabilizer and has a generally semi-circular cross-section, for generating an expansion wave and for directing air flow toward the grooved aft section. The grooved aft section is cylindrically shaped relative to a longitudinal axis, and has a predetermined number of identical, equally spaced, circumferentially positioned grooves which traverse the entire axial length of the aft section, and which are angled relative to the longitudinal axis. Each angled groove is defined by two substantially parallel side walls.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: March 10, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Stewart Gilman, Andrew Gowarty, Anthony Farina
  • Patent number: 5723811
    Abstract: A warhead includes an explosive charge placed in a confinement casing and bounded towards a front portion by a liner, the entire warhead having an axis of symmetry of revolution. A detector is provided in front of the charge and processing and command circuits are provided in a rear portion of the charge. A multiple-point detonator is communicated with an axial space providing a detector-circuit link without harming the efficiency of the charge.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: March 3, 1998
    Assignee: TDA Armements SAS
    Inventors: Thierry Bouet, Jean-Pierre Guillon
  • Patent number: 5719352
    Abstract: Low toxicity shot or pellets for shotgun cartridges or the like comprises finely divided metallic particles, preferably a mixture of finely divided molybdenum and tungsten particles in a polymer matrix. The resulting pellets have a high density and are much less prone to damage the barrels of guns from which they are fired than prior suggested alternatives to lead shot. If desired, friction between the pellets and gun barrels may be further reduced by incorporating a lubricant, such as molybdenum sulphide or graphite in the polymer matrix.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: February 17, 1998
    Assignee: The Kent Cartridge Manufacturing Co. Limited
    Inventor: Gerald Joseph Louis Griffin
  • Patent number: 5698815
    Abstract: An electronic projectile (10) for use with a standard cartridge (1). Projectile (10) and cartridge (1) are loaded into standard firearms and fired like a standard bullet. After leaving the barrel of a firearm, plastic sheaths (8L) and (8R) fall away and electrodes (19L) and (19R) extend outward on wires (40L) and (40R). On impact the electrodes penetrate the skin of the target making electrical contact with internal tissue of a target. Within projectile (10) a battery (50) powers internal electronics (30) to charge output capacitors (22) and (24) to high voltage. When the capacitors are fully charged a switch (58) completes the circuit and discharges the capacitors through the target. Switch (58) discharges the capacitors 20 to 100 times per second. These pulses continue for several seconds to incapacitate the target. The polarity of the current is changes once or twice per second to alternate between acidic and basic ions being formed around the electrodes to sterilize the puncture sight.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: December 16, 1997
    Inventor: Gary Dean Ragner
  • Patent number: 5698816
    Abstract: The identifiable bullet includes a jacket having sidewalls and a rear base; a bullet core contained within the jacket, the bullet core comprising a rear end; and, an identification member positioned between the rear base and the rear end. The invention provides an inexpensive method to add identification members to bullets that will remain legible following cartridge discharge, bullet impact and post firing environments.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: December 16, 1997
    Assignee: Boeing North American, Inc.
    Inventor: Donald L. Roxby
  • Patent number: 5686693
    Abstract: The projectile is made of a virtually lead free steel alloy containing tellurium. This projectile is more environmentally safe compared to conventional lead bullets. The tellurium in combination with a small amount of lead provides a steel alloy having a high machinability and good lubrication properties, thus reducing frictional wear inside a rifle bore when the bullet is passed therethrough. Additionally, a thin anticorrosive coating may be applied on the bullet. The coating may comprise a metal selected from the group consisting of copper, zinc and nickel. An additional lubricating coating comprising polytetrafluoroethylene may also be applied on the projectile. The projectile has a grooved guide section that is permitted to be deformed by the rifle bore without destroying the rifle bore when the projectile is fired in a rifle.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: November 11, 1997
    Inventor: Bo Jakobsson
  • Patent number: 5665808
    Abstract: A low toxicity, high density composite bullet material is disclosed and its use in a practice ammunition projectile. The material includes a compacted mixture of fine lead particles each encapsulated by a non toxic thermoplastic resin. The mixture which is compacted and formed by compression molding or injection molding, has a specific density of at least 7.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: September 9, 1997
    Inventors: Stephen J. Bilsbury, Bruce E. Burdick
  • Patent number: 5646365
    Abstract: The present invention relates to an identifiable bullet and method for identifying such bullets. The bullet comprises a bullet jacket, a lead core and an identification tag in the lead core. In one embodiment, the identification tag is an identification section including a core and an outer protective coating. The core and outer coating are heat-resistant and flexible to prevent damage when the bullet is discharged from a firearm. The identification segment is, in one embodiment, mounted within a chamber formed at the rear end of a main projectile portion, after which a plug or end cap is positioned to hold the identification section in place and protect the identification section from damage. The chamber may comprise one or more annular grooves in which the identification section and/or the end cap extends and engages to securely hold the respective components in place.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 8, 1997
    Inventor: William E. Collier
  • Patent number: 5639526
    Abstract: A paint ball including a paint ball shell and an axis extending through the shell to define first and second poles. The paint ball shell fractures in a predetermined pattern upon the receipt of a fracturing force to form fracture lines from the point of impact circumferentially toward the first pole and from the point of impact circumferentially toward the second pole.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: June 17, 1997
    Assignee: Perfect Circle Paint Ball, Inc.
    Inventors: Thomas G. Kotsiopoulos, Gary E. Gibson
  • Patent number: 5633475
    Abstract: An apparatus for generating a large perforation in a target such as a wellbore casing. A recess in a housing has a closed end and an open end facing the target. A shaped liner in the recess has an apex facing the recess open end, and has a base end facing the closed end of the recess. The shaped liner defines an interior volume filled with explosive material. The explosive material is detonated and expands the liner against the recess wall and forms a perforating jet which moves toward the recess open end. If the recess open end is circular, the perforating jet exits the recess as an annular jet which impacts the target and cuts a plug section from the target. The penetrating power of the jet is confined to the annular cutting area instead of being focused into a conventional jet shape. Multiple shaped liners can be placed in the recess, and the shape of the perforating jet can be modified by the liner shape and recess dimensions.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: May 27, 1997
    Assignee: Western Atlas International, Inc.
    Inventor: Manmohan S. Chawla
  • Patent number: 5559304
    Abstract: The invention relates to an insert for a warhead for producing a projectile by means of an explosive deformation of the insert.In order to achieve increased end-ballistic performances of the projectile formed by the explosive deformation of the insert, such insert is tapered at its peripheral region and has a flattened central region on the convex side thereof.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: September 24, 1996
    Assignee: Rheinmetall GmbH
    Inventors: Raimund Schweiger, Herbert Scholles, Hans Orth, Hendrik Lips
  • Patent number: 5540156
    Abstract: An apparatus and method for producing a selectable effects explosively fod penetrator warhead having the ability to defeat either single armored targets or a multiplicity of lightly armored targets.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: July 30, 1996
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Richard Fong
  • Patent number: 5535678
    Abstract: A firearm bullet, at least a major portion of which is formed of a one-piece element having a continuous all-metal structure primarily made up of bismuth or a bismuth alloy.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: July 16, 1996
    Assignees: Robert E. Petersen, Ken Elliot, Thomas Siatos
    Inventor: John E. Brown
  • Patent number: 5528989
    Abstract: A highly separable bullet which disintegrates in a controlled fashion is provided, which highly separable bullet comprises a bullet core and a jacket, and which highly separable bullet is fabricated by method comprising a three step low-impact swaging process. A highly separable bullet is provided which easily, consistently, and predictably separates, fragments and disintegrates in a controlled fashion after entering soft tissue, water or ballistic geletin as such. The first step bullet core swaging process is a low-impact swaging process comprising placing a preselected number of a plurality of malleable strands of metal in a bullet core swaging die and swaging the plurality of malleable strands of the bullet core into a cylindrical core having a unique, uniform interlocking pattern between the plurality of malleable strands of metal.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: June 25, 1996
    Inventor: Torrey L. Briese
  • Patent number: 5511483
    Abstract: An identifiable projectile is provided whereby an identification element is secured completely within the lead body of a projectile and remains engaged during ejection, flight, and impact.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: April 30, 1996
    Assignee: Bennie Griffin, Jr.
    Inventor: Bennie Griffin, Jr.
  • Patent number: 5500183
    Abstract: The invention relates to a bullet based on an Sn alloy, wherein the Sn alloy comprises Cu, Sb, Bi and/or Zn as an alloying element, wherein the Sn alloy preferably contains 0.2-10% by weight Cu, preferably 0.2-6% by weight Cu, or 0.2-10% by weight Cu and 0.5-20% by weight Sb, preferably 0.2-5% by weight Cu and 0.5-10% by weight Sb, or 1-15% by weight Sb, preferably 1-10% by weight Sb, or 0.5-30% by weight Bi, preferably 5-20% by weight Bi, or 0.005-10% by weight Zn, preferably 0.01-1% by weight Zn. The invention further relates to the use of an Sn alloy for manufacturing a bullet.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: March 19, 1996
    Assignee: Billiton Witmetaal B.V.
    Inventors: Jan Noordegraaf, Martinus A. Oud, Harry Behm, Roelof de Rooy
  • Patent number: 5485789
    Abstract: The present invention relates to an identifiable bullet and method for identifying such bullets. The bullet comprises a bullet jacket, a lead core and an identification tag in the lead core. In one embodiment, the identification tag is an identification section including a core and an outer protective coating. The core and outer coating are heat-resistant and flexible to prevent damage when the bullet is discharged from a firearm. The identification segment is, in one embodiment, mounted within a chamber formed at the rear end of a main projectile portion, after which a plug or end cap is positioned to hold the identification section in place and protect the identification section from damage. The chamber may comprise one or more annular grooves in which the identification section and/or the end cap extends and engages to securely hold the respective components in place.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: January 23, 1996
    Inventor: William E. Collier
  • Patent number: 5477786
    Abstract: A subcaliber arrow projectile includes a projectile body which has a rearwardly widening, conical projectile tip having a forward point and a rearward base, whose caliber corresponds to the projectile caliber. The projectile body further has a rearwardly widening, resistance-stabilizing conical rear part immediately adjoining the base of the projectile tip. The rear part has an enlarged caliber which is greater than the projectile caliber.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: December 26, 1995
    Assignee: Rheinmetall GmbH
    Inventors: Jurgen Leeker, Klaus Unterstein, Wilhelm Becker
  • Patent number: 5469790
    Abstract: An aerodynamic planar projectile carries an exposed propellant charge. The projectile is loaded into a specially designed gun that has a firing chamber and a barrel designed to receive and guide the projectile. When the trigger is pulled, an electric current heats an element which ignites the propellant. The propellant explodes driving the projectile from the chamber and down the barrel with lethal velocity.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: November 28, 1995
    Inventor: John S. Singer
  • Patent number: 5463960
    Abstract: A bullet for a rifle. The bullet having a nose, a cylindrical body surface, a rotating band section spaced from the cylindrical body surface. A streamlined section disposed between the rotating band section and the cylindrical body surface. The streamlined section is made up of a frustoconical front section, an apex and a base having a base joining the cylindrical body section, a frustoconical rear section having an apex joining the apex of the frustoconical front section and the frustoconical rear section having a base joining the rotating band section and a boat tail bullet. The streamlined part of the bullet improves the range, stability, velocity and trajectory of the bullet. A machine is disclosed for manufacturing the bullet.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: November 7, 1995
    Inventor: Charles P. Lowry
  • Patent number: 5448951
    Abstract: A target shooting capsule comprising a non-toxic, bio-degradable, injection molded shell of various shapes and forms having a dry wall thickness of from about 0.001 inches to about 0.1 inches, having a diameter from about 0.125 inches to about 1 inch, and containing a brightly colored water washable, non-toxic liquid dye fill material.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: September 12, 1995
    Inventor: Christy L. Olson
  • Patent number: 5443010
    Abstract: The muzzle loading rifle projectile has a cylindrical body, a hemispherically shaped nose and a hemispherically shaped depression in its base. The cylindrical body includes a band of diamond knurling or grooves and, adjacent the base end, a smooth band of a diameter slightly less than the outer diameter of the knurled band. A coating of lubricant is applied about at least the cylindrical body of the rifle projectile.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: August 22, 1995
    Assignee: Buffalo Bullet Company
    Inventor: Ronald R. Dahlitz
  • Patent number: 5408932
    Abstract: An elongated rod made of a shape memory alloy composition having selected eudoelastic properties, is deformed into a dimensionally compact coil for packaged storage under stress maintained by physical constraint. Upon selective removal of the constraint allowing shape recovery, a substantial increase in axial length of the rod occurs in order to improve its performance in various installations, including long rod penetrating projectiles.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: April 25, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Philip W. Hesse, David Goldstein
  • Patent number: 5408931
    Abstract: Ammunition is disclosed for firing a shotgun slug from a rifled shotgun having a range of about 300 meters. The shotgun ammunition comprises a cartridge, propellant, a fiber wad, and a slug. The slug includes a nose having a parabolic cross-section, a frustoconical rotation ring, and the slug has an internal cavity. The increased range enhances a shotgun's use in hunting, military, and police applications.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: April 25, 1995
    Inventor: Harvey A. Tallman
  • Patent number: 5381736
    Abstract: A projectile is provided with an axially passage extending from the rear surface of the projectile and offset from the longitudinal axis of the projectile. A plurality of symmetrically arranged radially extending passages are arranged around the periphery of the projectile and intersect at the longitudinal axis and with the inner end of the axially extending passage to form passageways through the projectile for gradually releasing propellent gas from the barrel of the gun, to the atmosphere, as the projectile passes out the end of the barrel, thereby decreasing the recoil of the firearm.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: January 17, 1995
    Inventor: Frank Kalcic
  • Patent number: 5381445
    Abstract: A munitions cartridge transmitter capable of emitting an electromagnetic signal after discharge from a cartridge propelling device comprises a signal generator, an electromagnetic signal transmitter coupled to the generator, an antenna coupled to the transmitter, and a hollow cartridge for housing the generator, the transmitter, and the antenna. The transmitter is energized after discharge of the cartridge propelling device by a power source contained in the cartridge.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: January 10, 1995
    Assignee: General Electric Company
    Inventors: John E. Hershey, Menahem Lowy, Lionel M. Levinson, Amer A. Hassan, Richard L. Frey, Kenneth B. Welles, II, Michael Gdula, Robert J. Wojnarowski
  • Patent number: 5365852
    Abstract: An improved explosively formed penetrator and a method of manufacturing same for forming an elongated rod-like penetrator having aerodynamically stabilizing fins, but without requiring any exotic production processes for shaping or modifying the characteristics of a conventional liner normally used in such penetrators. The present invention comprises a specially shaped thin foil which is placed between the liner and the explosive charge and which provides a selected plurality of radial legs which, in a preferred embodiment, are symmetrically placed around a center portion axially aligned with the center of the liner. The combined axial thickness of the liner and the radial legs of the thin foil lag behind the thinner portions of the liner alone, thereby causing the explosively formed penetrator to form unevenly, hence forming fins.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: November 22, 1994
    Assignee: Aerojet-General Corporation
    Inventors: David E. Bender, Joseph Carleone
  • Patent number: 5363769
    Abstract: A practice tear gas round comprises a projectile having the same caliber as the standard tear gas gun, and a main adapter which is separately loadable into the launcher and has an outside diameter of the same caliber as the launcher while providing a chamber of reduced diameter for use of the launcher with devices of smaller caliber than the launcher. Preferably, an auxiliary adapter is receivable within the chamber of the main adapter in order to further reduce the caliber of propelling charge which is to be used for the practice round, while allowing removal of the auxiliary adaptor in order to receive in the main adaptor a standard 12 gauge shot shell, for example, for use of the launcher as a single shot 12 gauge shot gun. Additionally, the standard gas gun can be converted to a single shot rifle or shot gun for firing various other smaller calibers of cartridges and/or shot shells according to the auxiliary adaptor selected and inserted into the main adaptor for reception of a cartridge or shot shell.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: November 15, 1994
    Inventors: Jerry K. Bellak, Joel B. Freidhoff
  • Patent number: 5331897
    Abstract: A decoy device for deployment in a marine environment to decoy heat seeking issiles from their intended target. The device consists of a canister of fuel and means for igniting the fuel. The canister is designed such that the operation of the device creates a spray of burning fuel and a resultant large radiation area decoy.
    Type: Grant
    Filed: October 7, 1977
    Date of Patent: July 26, 1994
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: George S. Handler
  • Patent number: 5325786
    Abstract: Disclosed is an improved design for individual flechettes, a multiplicity of which are arrayed in an ammunition cartridge for a gun. The flechettes have elongate solid bodies centered about a longitudinal axis, the bodies tapering from a waist to both forward end and rearward end. The waists of the flechettes are closer to the forward end than to the rearward end so that the flechettes' centers of gravity are closer to the forward ends than the rearward ends. The flechettes may have regular polygonal cross sections or essentially regular polygonal cross sections wherein the flechettes define fins along their bodies. Packing arrangements of the flechettes within ammunition cartridges are also shown.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: July 5, 1994
    Inventor: Paul A. Petrovich
  • Patent number: 5289997
    Abstract: In order to increase energy efficiency by reducing the drag experienced by bodies moving through a fluid medium, such as tractor-trailers, structure is incorporated in the rear surface or panel of the bodies. The structure is implemented with a multiplicity of cavities or a multiplicity of protruding regions. The cavities or protruding regions each comprise only a small portion of the total area of the rear surface and the depth or extension dimension, relative to the rear surface or panel, is small. In the case of a tractor-trailer, the rear surface structure permits convenient access to the interior of the vehicle and can be incorporated in either a rear door assembly or in a sliding rear panel assembly. The drag reduction benefits are achieved not only when the body is a tractor-trailer but also in the case of all types of land vehicles, water craft, aircraft, projectiles and the like which have a relatively flat rear surface.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: March 1, 1994
    Inventor: B. Waylon Harris
  • Patent number: 5275109
    Abstract: A kinetic energy long rod penetrator is formed from a high density metal ing axially aligned elongated cavities uniformly spaced and extending longitudinally through the penetrator. These cavities allow for a long rod penetrator which is longer than previous long rod penetrators of comparable mass and material as well as a penetrator that is resistant to breakage.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: January 4, 1994
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Lawrence J. Puckett
  • Patent number: 5275108
    Abstract: Aerodynamic cartridge and bullet combination in which the bullet is provided with a substantially smooth, edge-free contour, and a heel having rebated boat tail. An upright wall in the cartridge is attached to the boat tail by crimping. The cartridge houses a radially expandable wad which is arranged between the bullet and a propellant. The wad permits use of harder bullets than conventionally employed in ammunition by ensuring an effective gas seal between the propellant and bullet, and heel swage out or minimal heel deformation depending on wad configuration during burning of the propellant. Etches are provided in the bullet for receiving a long-chain polymeric lubricant coating which reduces leading in the rifle barrel.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: January 4, 1994
    Assignee: Endowment Fund of the International Shooter Development Fund, Inc.
    Inventors: Steven T. Chernicky, Gene L. Harwood
  • Patent number: 5275083
    Abstract: A single skirt projectile (20) having an insulating skirt (22) at its rear, or a dual trailing skirt projectile (30, 40, 50, 60) having an insulating skirt (32, 42, 52, 62) succeeded by an arc extinguishing skirt (34, 44, 54, 64), is accelerated by a railgun accelerator 10 having a pair of parallel conducting rails (1a, 1b) which are separated by insulating wall spacers (11). The insulating skirt (22, 32, 42, 52, 62) includes a plasma channel (38). The arc extinguishing skirt (34, 44, 54, 64) interrupts the conduction that occurs in the insulating skirt channel (38) by blocking the plasma arc (3) from conducting current from rail to rail (1a, 1b) at the rear of the projectile (30, 40, 50, 60). The arc extinguishing skirt may be comprised of two plates (36a, 36b) which form a horseshoe wherein the plates are parallel to the rails (1a, b); a chisel-shape design; cross-shaped, or it may be a cylindrical (64).
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: January 4, 1994
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Ronald S. Hawke, Allan R. Susoeff