Plastic Cases Patents (Class 102/466)
  • Patent number: 10408582
    Abstract: The present invention provides an ammunition cartridge having a primer insert for having a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element is adapted to receive a polymer overmolding; a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and a groove in the primer recess positioned around the primer flash aperture adapted to receive a polymer overmolding, wherein the groove extends at least partially over the bottom surface and the groove is adapted to receive polymer at least partially over the bottom surface.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 10, 2019
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 10365074
    Abstract: The present invention provides polymeric ammunition cartridge having a generally cylindrical neck having a projectile aperture at a first end, an outer shoulder surface that extends from the generally cylindrical neck, an outer shoulder angle defined by the outer shoulder surface, an inner shoulder surface on the inside of the polymer nose opposite the outer shoulder surface, an inner shoulder angle defined by the outer shoulder surface, a skirt surface extending from the inner shoulder surface, a skirt angle defined by the skirt surface, and a nose junction that extends from the outer shoulder surface to the skirt surface, wherein the nose junction is adapted to mate to a polymer cartridge.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: July 30, 2019
    Assignee: True Velocity IP Holdings, LLC
    Inventors: Lonnie Burrow, Christopher William Overton
  • Patent number: 10359262
    Abstract: The present invention provides an ammunition having a primer insert having a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element is adapted to receive a polymer overmolding; a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and a groove in the primer recess positioned around the primer flash aperture adapted to receive a polymer overmolding, wherein the groove extends at least partially over the bottom surface and at least partially over the circular recess side wall and the groove is adapted to receive polymer over the bott
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 23, 2019
    Assignee: TRUE VELOCITY IP HOLDINGS LLC
    Inventor: Lonnie Burrow
  • Patent number: 10345088
    Abstract: One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash hole positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: July 9, 2019
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 10274293
    Abstract: The present invention provides an ammunition cartridge having a primer insert having a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element is adapted to receive a polymer overmolding; a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and a groove in the primer recess positioned around the primer flash aperture adapted to receive a polymer overmolding, wherein the groove extends at least partially over the bottom surface and at least partially over the circular recess side wall and the groove is adapted to receive polymer ove
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 30, 2019
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 10240905
    Abstract: The present invention provides polymer ammunition having a primer insert having a primer insert having a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element is adapted to receive a polymer overmolding; a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and one or more pads positioned on the recess bottom; a groove in the primer recess positioned around the primer flash aperture to extend at least partially over the recess bottom and adapted to receive a polymer overmolding.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 26, 2019
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 10234249
    Abstract: The present invention provides an ammunition having a primer insert having a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element is adapted to receive a polymer overmolding; a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and a groove in the primer recess positioned around the primer flash aperture adapted to receive a polymer overmolding, wherein the groove extends at least partially over the bottom surface and the circular recess side wall and the groove is adapted to receive polymer through the primer flash aperture and
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 19, 2019
    Assignee: True Velocity IP Holdings, LLC
    Inventor: Lonnie Burrow
  • Patent number: 9441930
    Abstract: One embodiment of the present invention provides a method of making a polymeric ammunition cartridge having a substantially cylindrical metal primer insert, a substantially cylindrical polymeric middle body coupled to a substantially cylindrical open-ended polymeric bullet-end component.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: September 13, 2016
    Assignee: TRUE VELOCITY, INC.
    Inventor: Lonnie Burrow
  • Patent number: 9091516
    Abstract: The present invention is directed to a three-part ammunition cartridge casing body comprising a head or base portion, a case portion and a cap portion. The cartridge casing body further comprises: the base portion, made of metal or polymeric resin, having a closed end and an open end; a substantially cylindrical case portion, open on both ends, joined to the open end of the base portion and comprising a nanocomposite material of a nanoclay dispersed in a polyamide resin matrix; and a cap portion, made of a nanocomposite material of a nanoclay dispersed in a polyamide resin matrix and further comprising glass fibers, joined to the other end of the case portion, wherein the case portion is more ductile than the cap portion.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: July 28, 2015
    Assignee: Nylon Corporation of America, Inc.
    Inventors: Jack Davies, Christopher Coco
  • Patent number: 9032855
    Abstract: A method of making an ammunition article and associated ammunition article is provided. The ammunition article is interchangeable with standard ammunition articles and to operate in standard chambers of standard weapons systems and of the type having a casing including a sidewall that defines a casing volume within. The method includes determining a desired propellant charge volume for a given ammunition article, determining a thickness of the casing sidewall such that the casing volume substantially corresponds to the desired propellant charge volume, and forming the casing having the determined thickness.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: May 19, 2015
    Assignee: Carolina PCA, LLC
    Inventors: Wayne S. Foren, Joshua Kratky, Gary Smith, David Jackson, Norton Gallego
  • Patent number: 8985004
    Abstract: Shotshell type ammunition includes a hull, a sabot disposed within the hull, and at least one projectile disposed within the sabot. The hull has a rimless first 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 first end. The hull further includes an outer cylindrical side surface extending from the rimless first end of the hull to the seat surface of the hull. Methods of fabricating such ammunition includes forming such a hull, providing one or more projectiles within a sabot, and disposing the sabot with the one or more projectiles therein at least partially into the hull. Shotgun type firearms are configured for firing such ammunition.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 24, 2015
    Assignee: Intrepid Tactical Solutions, LLC
    Inventor: William E. DeJong
  • Patent number: 8978559
    Abstract: A base insert for a cartridge case comprises a base end having a lip and a groove proximate the lip and having a primer pocket defined in the base end and an insert end having a base wall and a cylindrical wall extending there from, the base wall and cylindrical wall defining a powder fill pocket. The base wall has a flash hole disposed therein and an inner surface facing the powder fill pocket. The cylindrical wall has an inner surface intersecting with the inner surface of the base wall and an outer surface defining the outer circumference of the base insert. The intersection of the inner surface of the base wall and the inner surface of the cylindrical wall is curved or forms an oblique angle, while the outer surface of the insert end is not curved and does not form an oblique angle.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 17, 2015
    Assignee: Nylon Corporation of America, Inc.
    Inventors: Jack D Davies, Gregory Biederman, Christopher A Coco
  • Publication number: 20150047527
    Abstract: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can have a frangible portion capable of being split upon discharge of a projectile. A projectile can be disposed in the mouth.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 19, 2015
    Applicant: PCP Tactical, LLC
    Inventor: Charles PADGETT
  • Publication number: 20150033970
    Abstract: Polymeric ammunition casings having engineered neck geometries, and methods of forming such ammunition are provided. In particular embodiments, both the internal and external neck geometries are engineered to provide even greater improvement of the accuracy and consistency of the ammunition.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 5, 2015
    Inventors: Nikica Maljkovic, John Francis Bosarge, Chris Davis
  • Publication number: 20140373744
    Abstract: An insert for a high strength polymer-based cartridge casing can include an outside, an inside formed within the insert, and a back end disposed at a rear of the cartridge casing. The back end includes a rim and groove disposed around the outside of the insert and a primer pocket disposed inside the back end. Also included is a front end, opposite the back end, having an overmolded area disposed around the outside of the insert above the primer pocket and a basin, having a depth, formed inside the overmolded area. A flash hole can be included inside the insert and communicating between the primer pocket and the basin. The flash hole has a perimeter and a ring disposed around the perimeter of the flash hole, including a height starting at a bottom of the basin, disposed toward the front end, and less than the depth of the basin.
    Type: Application
    Filed: September 10, 2014
    Publication date: December 25, 2014
    Applicant: PCP Tactical, LLC
    Inventors: Charles PADGETT, Sy WILEY
  • Patent number: 8875633
    Abstract: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can have a frangible portion capable of being split upon discharge of a projectile. A projectile can be disposed in the mouth and a relief can be disposed on the neck near the mouth and projectile. The relief can form a gap between the neck and the projectile to receive an adhesive.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: November 4, 2014
    Assignee: PCP Tactical, LLC
    Inventor: Charles Padgett
  • Patent number: 8869702
    Abstract: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. An inside of the shoulder can be shaped in at least one of a convex or concave shape. The shoulder can have unequal outside and inside shoulder angles. Further, the inside shoulder can be textured or coated.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 28, 2014
    Assignee: PCP Tactical, LLC
    Inventor: Charles Padgett
  • Patent number: 8850985
    Abstract: An ammunition article is provided which comprises a casing and a cap wherein the casing is formed from a polymeric material that has a room temperature notched Izod impact value greater than about 10 ft lbs/in and then has a ratio of notched Izod impact value at room temperature to notch Izod impact value at about ?40° C. of less than about 4.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: October 7, 2014
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: Nikica Maljkovic, Todd S. Rushing
  • Publication number: 20140290522
    Abstract: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can have a frangible portion capable of being split upon discharge of a projectile. A projectile can be disposed in the mouth and a relief can be disposed on the neck near the mouth and projectile. The relief can form a gap between the neck and the projectile to receive an adhesive.
    Type: Application
    Filed: April 17, 2013
    Publication date: October 2, 2014
    Applicant: PCP Tactical, LLC
    Inventor: PCP Tactical, LLC
  • Patent number: 8813650
    Abstract: An ammunition article is provided which comprises a casing and a cap wherein the casing is formed from a polymeric material that has a room temperature notched Izod impact value greater than about 10 ft lbs/in and then has a ratio of notched Izod impact value at room temperature to notch Izod impact value at about ?40° C. of less than about 4.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: August 26, 2014
    Assignee: Solvay Advanced Polymers, L.L.C.
    Inventors: Nikica Maljkovic, Todd S. Rushing
  • Patent number: 8763535
    Abstract: A high strength polymer-based cartridge casing includes an upper component of polymer, a bullet of a standard weight, a lower component of polymer, and an insert. The upper component has a shoulder portion and an upper component inner wall has a first slope extending from the shoulder. The lower component has a lower component inner wall having a second slope. The upper and lower component inner walls form a propellant chamber; and the first and second slopes reduce a volume of the propellant chamber. The reduced volume of the propellant chamber permits only enough propellant to propel a bullet engaged in the cartridge casing at subsonic speeds.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 1, 2014
    Assignee: PCP Tactical, LLC
    Inventor: Tony Padgett
  • Publication number: 20140069290
    Abstract: An example of a polymer-based machine gun link can include a first side having a finger to hold a cartridge and a second side, opposite the first side, having at least two fingers to hold a second cartridge. A stem can join the first side and the second side the two fingers are smaller than the finger and spaced along the stem so that the finger fits between the two fingers. All of the finger, the two fingers, and the stem are made from polymer.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 13, 2014
    Inventor: PCP TACTICAL, LLC
  • Publication number: 20140060372
    Abstract: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. An inside of the shoulder can be shaped in at least one of a convex or concave shape. The shoulder can have unequal outside and inside shoulder angles. Further, the inside shoulder can be textured or coated.
    Type: Application
    Filed: December 19, 2012
    Publication date: March 6, 2014
    Applicant: PCP TACTICAL, LLC
    Inventor: PCP Tactical, LLC
  • Publication number: 20140060373
    Abstract: A subsonic ammunition cartridge casing having an engineered internal volume designed to allow for the introduction of precisely the amount of propellant necessary at precisely the desired location to reproducibly produce the desired projectile velocity and internal pressure is provided. The subsonic shell casing has an engineered internal propellant cavity built into the internal body of the casing itself that does not necessarily depend on the introduction of a separate volume reducing device such as tubing, filler, foam filler and the like. This ensures the integrity of the case, does not result in anything being expelled through the muzzle of the weapon other than the projectile, does not have any burning or combusting components, allows for very precise control of the internal volume and thus chamber pressure, and is economical to produce.
    Type: Application
    Filed: July 30, 2012
    Publication date: March 6, 2014
    Applicant: MAC,LLC
    Inventors: Nikica Maljkovic, Joe Paul Gibbons, John Francis Bosarge
  • Patent number: 8573126
    Abstract: A cartridge for ammunition has a base with an axial end section. An annular wall extends from the enlarged outer peripheral lip section to an opposite end. The axial end section has a primer cavity therein and a radially outwardly extending peripheral extraction lip. An annular ledge is axially positioned at an inner end of said primer cavity and radially extends inwardly from said annular wall. A passage has a reduced diameter compared to the primer cavity and extends through the annular ledge. A main charge cavity is at an opposite side of the ledge from the primer cavity. A knurl section is on an outer surface of said cylindrical wall. A cartridge case is attached to the base about said knurl section.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: November 5, 2013
    Assignee: PCP Tactical, LLC
    Inventors: Thomas R. Klein, Sy Wiley
  • Patent number: 8561543
    Abstract: One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash hole positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: October 22, 2013
    Assignee: True Velocity, Inc.
    Inventor: Lonnie Burrow
  • Patent number: 8522684
    Abstract: A base insert for a cartridge case comprises a base end having a lip and a groove proximate the lip and having a primer pocket defined in the base end and an insert end having a base wall and a cylindrical wall extending there from, the base wall and cylindrical wall defining a powder fill pocket. The base wall has a flash hole disposed therein and an inner surface facing the powder fill pocket. The cylindrical wall has an inner surface intersecting with the inner surface of the base wall and an outer surface defining the outer circumference of the base insert. The intersection of the inner surface of the base wall and the inner surface of the cylindrical wall is curved or forms an oblique angle, while the outer surface of the insert end is not curved and does not form an oblique angle.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: September 3, 2013
    Assignee: Nylon Corporation of America, Inc.
    Inventors: Jack D Davies, Gregory J Biederman, Christopher A Coco
  • Patent number: 8516964
    Abstract: The invention relates to a cartridge having a propellant charge casing at least partially filled with a propellant charge powder, and a projectile part connected on a front of the propellant charge casing, wherein the propellant charge casing comprises a casing cover, a casing sheath and a casing base, and the casing sheath is connected to the projectile part via the casing cover and to the casing base via a spring steel sheet. In order to achieve different amounts of propellant charge powder filled into the same propellant charge casing without igniting the propellant charge at undesirable blast waves, a sack-shaped container that is completely filled with the respective amount of propellant charge powder is disposed inside the propellant charge casing so that the container, and thus also the propellant charge powder, extends in the direction of the central longitudinal axis of the cartridge.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: August 27, 2013
    Assignee: Rheinmetall Waffe Munition GmbH
    Inventors: Thomas Heitmann, Klaus-Achim Kratzsch, Michael Vagedes
  • Patent number: 8443730
    Abstract: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can be have a frangible portion capable of being split upon discharge of a projectile. The shoulder can have unequal outside and inside shoulder angles. The casing can also include an insert having a rim at one end or a plurality of ribs extending longitudinally along a wall between the shoulder and the bottom of the cartridge and spaced radially from each other around a circumference of the wall. A projectile can be disposed in the mouth and a relief can be disposed on the neck near the mouth and projectile. The relief can form a gap between the neck and the projectile to receive an adhesive.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: May 21, 2013
    Assignee: PCP Tactical, LLC
    Inventor: Charles Padgett
  • Patent number: 8408137
    Abstract: A cartridge for a firearm comprises a case having a base located at one end and a projectile mounted at the other end. A specific volume of propellant is contained in the case and is ignitable via a primer located in the base. The ignition of the propellant causes the projectile to be propelled from the case. The case comprises a wall defining a plurality of circumferential flutes that extend around outer and inner surfaces of the case in a helical or vertical configuration.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: April 2, 2013
    Inventor: Vin Battaglia
  • Publication number: 20130014665
    Abstract: An ammunition article is provided which comprises a casing and a cap wherein the casing is formed from a polymeric material that has a room temperature notched Izod impact value greater than about 10 ft lbs/in and then has a ratio of notched Izod impact value at room temperature to notch Izod impact value at about ?40° C. of less than about 4.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Applicant: Solvay Advanced Polymers, L.L.C.
    Inventors: Nikica Maljkovic, Todd S. Rushing
  • Publication number: 20130014664
    Abstract: A high strength polymer-based cartridge casing includes an upper component of polymer, a bullet of a standard weight, a lower component of polymer, and an insert. The upper component has a shoulder portion and an upper component inner wall has a first slope extending from the shoulder. The lower component has a lower component inner wall having a second slope. The upper and lower component inner walls form a propellant chamber; and the first and second slopes reduce a volume of the propellant chamber. The reduced volume of the propellant chamber permits only enough propellant to propel a bullet engaged in the cartridge casing at subsonic speeds.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 17, 2013
    Applicant: PCP Ammunition Company, LLC
    Inventor: Tony Padgett
  • Patent number: 8240252
    Abstract: An ammunition article is provided which comprises a casing and a cap wherein the casing is formed from a polymeric material that has a room temperature notched Izod impact value greater than about 10 ft lbs/in and then has a ratio of notched Izod impact value at room temperature to notch Izod impact value at about ?40° C. of less than about 4.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: August 14, 2012
    Inventors: Nikica Maljkovic, Todd S. Rushing
  • Publication number: 20120180688
    Abstract: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can be have a frangible portion capable of being split upon discharge of a projectile. The shoulder can have unequal outside and inside shoulder angles. The casing can also include an insert having a rim at one end or a plurality of ribs extending longitudinally along a wall between the shoulder and the bottom of the cartridge and spaced radially from each other around a circumference of the wall. A projectile can be disposed in the mouth and a relief can be disposed on the neck near the mouth and projectile. The relief can form a gap between the neck and the projectile to receive an adhesive.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 19, 2012
    Applicant: PCP AMMUNITION COMPANY LLC
    Inventor: Charles Padgett
  • Publication number: 20120180687
    Abstract: A high strength polymer-based cartridge casing includes an upper component of polymer having a first end with a mouth, at least a wall between the first end and a second end of the upper component opposite the first end, a sleeve extending longitudinally and radially about the wall, and at least one of an overlap portion and an underskirt portion extending from the wall near the second end. The lower component is molded from a polymer and includes at least one of a tapered portion and an outer tapered portion that engages at least one of the overlap portion and the underskirt portions, respectively, to join the upper and the lower components. Further, the sleeve reduces a volume of a propellant chamber formed by the wall. The reduced volume of the propellant chamber permits only enough propellant to propel a bullet engaged in the cartridge casing at subsonic speeds.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 19, 2012
    Applicant: PCP AMMUNITION COMPANY LLC
    Inventors: Charles Padgett, Sy Wiley
  • 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
  • Publication number: 20120111219
    Abstract: One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash hole positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 10, 2012
    Applicant: True Velocity, Inc.
    Inventor: Lonnie Burrow
  • Patent number: 8161882
    Abstract: A propellant charge for use for ammunition, in which the propellant charge is separate from the projectile, has a propellant charge substance which can be initiated by a fuse. In order to solve the problem of providing a propellant charge for use in a two-part munition, which on the one hand can be produced easily and at low cost and on the other hand does not present any risk of damage when mechanically loaded before use, it is proposed that a propellant charge casing be provided which surrounds the propellant charge substance, with the propellant charge casing being in the form of a plastic part which is composed of a non-combustible, temperature-stable plastic material.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 24, 2012
    Assignee: Diehl BGT Defense GmbH & Co. KG
    Inventors: Axel Pfersmann, Alfred Eckel
  • Publication number: 20110290143
    Abstract: The invention relates to a cartridge having a propellant charge casing at least partially filled with a propellant charge powder, and a projectile part connected on a front of the propellant charge casing, wherein the propellant charge casing comprises a casing cover, a casing sheath and a casing base, and the casing sheath is connected to the projectile part via the casing cover and to the casing base via a spring steel sheet. In order to achieve different amounts of propellant charge powder filled into the same propellant charge casing without igniting the propellant charge at undesirable blast waves, a sack-shaped container that is completely filled with the respective amount of propellant charge powder is disposed inside the propellant charge casing so that the container, and thus also the propellant charge powder, extends in the direction of the central longitudinal axis of the cartridge.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 1, 2011
    Applicant: RHEINMETALL WAFFE MUNITION GMBH
    Inventors: Thomas Heitmann, Klaus-Achim Kratzsch, Michael Vagedes
  • Publication number: 20110179965
    Abstract: Ammunition assemblies including ammunition cartridges are provided herein. According to some embodiments, ammunition cartridges may include a tubular casing having a first and a second end, wherein the tubular casing is at least partially constructed from a polymeric material, and wherein the tubular casing is adapted to receive and retain a propellant, a cap releaseably associable with the first end of the tubular casing, and a rim extending from the second end of the tubular casing, the rim and second end of the tubular casing cooperating together to form an extraction groove for receiving at least a portion of an extractor of a firearm.
    Type: Application
    Filed: November 2, 2010
    Publication date: July 28, 2011
    Inventor: Mark Mason
  • Publication number: 20100282112
    Abstract: A cartridge for a firearm comprises a case having a base located at one end and a projectile mounted at the other end. A specific volume of propellant is contained in the case and is ignitable via a primer located in the base. The ignition of the propellant causes the projectile to be propelled from the case. The case comprises a wall defining a plurality of circumferential flutes that extend around outer and inner surfaces of the case in a helical or vertical configuration.
    Type: Application
    Filed: May 6, 2010
    Publication date: November 11, 2010
    Inventor: Vin Battaglia
  • 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: 7712418
    Abstract: A closure wad is placed at the mouth of the launching end of a shotgun cartridge before the mouth is crimped down to seal the launching end of the cartridge. Both the walls of the closure cap and the walls at the mouth of the plastic envelope are crimped down together, thereby forming a substantially impermeable seal at the launching end of the cartridge. In addition, the inventive closure cap substantially reduces the detritus which is sometimes expelled when a launcher cartridge is fired.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 11, 2010
    Assignee: Combined Systems, Inc.
    Inventor: Michael Brunn
  • Patent number: 7610858
    Abstract: An ammunition cartridge assembled from (1) a substantially cylindrical polymeric cartridge casing body defining a casing headspace with an open projectile-end and an end opposing the projectile-end, wherein the casing body has (A) a substantially cylindrical injection molded polymeric bullet-end component with opposing first and second ends, the first end of which is the projectile-end of the casing body and the second end has a male or female coupling element; and (B) a cylindrical polymeric middle body component with opposing first and second ends, wherein the first end has a coupling element that is a mate for the projectile-end coupling element and joins the first end of the middle body component to the second end of the bullet-end component, and the second end is the end of the casing body opposite the projectile end and has a male or female coupling element; and (2) a cylindrical cartridge casing head-end component with an essentially closed base end with a primer hole opposite an open end with a coupli
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: November 3, 2009
    Inventor: Sengshin Chung
  • Publication number: 20090044717
    Abstract: An apparatus for manufacturing an ammunition article, includes forming a projectile of an ammunition article at a first station of an apparatus, transporting the projectile within the apparatus to a second station of the apparatus, and injection molding at the second station a cartridge casing body of the ammunition article around at least a portion of the projectile.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 19, 2009
    Applicant: Development Capital Managment Company
    Inventors: Nabil Husseini, David E. Byron
  • Patent number: 7461597
    Abstract: A closure wad is placed at the mouth of the launching end of a shotgun cartridge before the mouth is crimped down to seal the launching end of the cartridge. Both the walls of the closure cap and the walls at the mouth of the plastic envelope are crimped down together, thereby forming a substantially impermeable seal at the launching end of the cartridge. In addition, the inventive closure cap substantially reduces the detritus which is sometimes expelled when a launcher cartridge is fired.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: December 9, 2008
    Assignee: Combined Systems Inc.
    Inventor: Michael Brunn
  • Patent number: 7441504
    Abstract: A base for a cartridge casing body for an ammunition article, the base having a ignition device; an attachment device at one end thereof, the attachment device being adapted to attach the base to a cartridge casing body; wherein the base is made from plastic, ceramic, or a composite material.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: October 28, 2008
    Assignee: Development Capital Management Company
    Inventors: Nabil Husseini, David E. Byron
  • Patent number: 6845716
    Abstract: An ammunition article includes a molded plastic cartridge casing body having a first end and a second end, and a projectile attached to the first end of the cartridge casing body. The cartridge casing body is molded around at least a portion of the projectile. A molded plastic base for an ammunition article, a molded plastic blank cartridge, and a molded plastic cartridge casing body having a pronged web are also disclosed.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: January 25, 2005
    Assignee: Natec, Inc.
    Inventors: Nabil Husseini, David E. Byron
  • Patent number: 6752084
    Abstract: An ammunition article includes a molded plastic cartridge casing body having a first end and a second end, and a projectile attached to the first end of the cartridge casing body. The cartridge casing body is molded around at least a portion of the projectile. A molded plastic base for an ammunition article, a molded plastic blank cartridge, and a molded plastic cartridge casing body having a pronged web are also disclosed.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: June 22, 2004
    Assignee: Amtech, Inc.
    Inventors: Nabil Husseini, David E. Byron
  • Publication number: 20040011237
    Abstract: The present invention generally relates to small arms technology and more particularly, is concerned with hunting and sporting cartridges having plastic cases.
    Type: Application
    Filed: April 21, 2003
    Publication date: January 22, 2004
    Inventors: Eduard Illarionovich Khvichia, Khvichia David Eduardovich, Khvichia Georgy Eduardovich