With Primer Means Patents (Class 102/470)
  • Patent number: 11867492
    Abstract: A compound shell casing comprising: a generally tubular outer member having an open forward end, an open rearward end, and a central passage extending therebetween, with a circumferentially extending, forwardly and inwardly facing seat in the rearward portion of the central passage; an inner member disposed in the rearward end of the central passageway of the outer member, the inner member comprising a first forwardly facing cup-shaped portion, and a second, rearwardly facing cup-shaped portion opening to the open rearward end of the outer member, and a circumferentially extending downwardly and rearwardly facing shoulder on the exterior of inner member engaging the seat in the central passage of the outer member.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: January 9, 2024
    Inventor: Gerald Todd Eberhart
  • Patent number: 11815343
    Abstract: An output device and/or an output device assembly configured to be initiated in response to different types of input. The disclosed output device may be generally configured so as to be able to receive different types of input in order to produce an output. For example, the two different types of input may be mechanical force and fluid pressure, and thus the disclosed output device may be able to receive either form of input and convert either input into the desired/predetermined output.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: November 14, 2023
    Assignee: AMI INDUSTRIES, INC.
    Inventors: Steve Holstine, Kassidy L. Carson, Jeff Benjamin, John Hampton, Luis G. Interiano
  • Patent number: 11609077
    Abstract: A cartridge that generates higher than typical chamber pressures has an enhanced means of primer retention for retaining the primer in the primer recess of the casing. The means may be a lip folded onto a conical surface, a annular groove to receive deformed primer wall portion material upon detonation, a concavity in the rearward facing wall of the primer, a check valve in the flash tube to inhibit propellant gases from reaching the primer recess, or specifically configured primers with a greater length than diameter and with greater wall thicknesses.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: March 21, 2023
    Assignee: Vista Outdoor Operations LLC
    Inventors: Bryan Peterson, Jared Kutney, Joel L. Sandstrom
  • Patent number: 11448489
    Abstract: The present invention provides a multi piece primer insert for ammunition comprising: an upper primer insert portion connected to a lower primer insert portion, wherein the upper primer insert portion comprises an upper primer bottom surface and an upper primer top surface opposite the upper primer bottom surface, an upper primer aperture through the upper primer bottom surface, a substantially cylindrical coupling element extending away from the upper primer bottom surface, wherein the lower primer insert comprises: a lower primer top surface opposite a lower primer bottom surface, a primer recess in the lower primer top surface that extends toward the lower primer bottom surface and adapted to fit a primer, a lower flash hole aperture through the lower primer bottom surface extending to the primer recess; and a flash hole groove in the top surface of the upper primer insert portion, the flash hole groove extends circumferentially about the upper primer aperture and the flash hole groove is larger than the u
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 20, 2022
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 11448490
    Abstract: The present invention provides a multi piece primer insert for ammunition comprising an upper primer insert portion connected to a lower primer insert portion, wherein the upper primer insert portion comprises an upper primer bottom surface; an upper primer aperture through the upper primer bottom surface, and a substantially cylindrical coupling element extending away from the upper primer bottom surface, wherein the lower primer insert portion comprises: a lower primer bottom surface opposite a lower primer top surface, a primer recess in the lower primer top surface that extends toward the lower primer bottom surface and adapted to fit a primer, a lower flash hole aperture through the lower primer bottom surface, wherein the lower flash hole aperture is about the same diameter as the upper primer aperture; a middle flash hole aperture positioned between the upper primer aperture and the lower flash hole aperture, wherein the middle flash hole aperture has a diameter greater than the lower flash hole apertu
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 20, 2022
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 11300388
    Abstract: Modular cartridges are disclosed that can be initially assembled, disassembled, and reprocessed by hand. The cartridge case is suitable for use with a variety of projectile designs and weights and for use with a range of propellant amounts and primer types. The variety of projectiles and range of propelling forces permits the present invention to provide cartridges for all types of uses, including indoor and outdoor target shooting, training, non-lethal self-protection, and lethal uses. The cartridges include a case, a projectile, a primer, and a selectable amount of propellant (if any), and primer housing insert” and which is configured to be releasably attached to the striking end of the case and to contain the primer and the desired amount of propellant.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 12, 2022
    Inventor: William Joseph Nemec
  • Patent number: 11098993
    Abstract: The present invention provides ammunition cartridge having a two piece primer insert with a flange, a polymeric middle body extending from the primer insert to a cylindrical middle body coupling region, and a polymeric projectile end having a projectile aperture mated to the polymeric middle body.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 24, 2021
    Assignee: True Velocity IP Holdings, LLC
    Inventor: Lonnie Burrow
  • Patent number: 11098990
    Abstract: The present invention provides ammunition cartridge having a two piece primer insert with a flange, a polymeric middle body extending from the primer insert to a cylindrical middle body coupling region, and a polymeric projectile end having a projectile aperture mated to the polymeric middle body.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: August 24, 2021
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 11098992
    Abstract: The present invention provides ammunition cartridge having a two piece primer insert with a flange, a polymeric middle body extending from the primer insert to a cylindrical middle body coupling region, and a polymeric projectile end having a projectile aperture mated to the polymeric middle body.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 24, 2021
    Assignee: True Velocity IP Holdings, LLC
    Inventor: Lonnie Burrow
  • Patent number: 11098991
    Abstract: The present invention provides ammunition cartridge having a two piece primer insert with a flange, a polymeric middle body extending from the primer insert to a cylindrical middle body coupling region, and a polymeric projectile end having a projectile aperture mated to the polymeric middle body.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: August 24, 2021
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 11079209
    Abstract: One embodiment of the present invention provides a making a polymeric ammunition having wicking texturing about the projectile end.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: August 3, 2021
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 11047662
    Abstract: One embodiment of the present invention provides a method of making a polymeric ammunition cartridge having wicking texturing about the projectile aperture.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 29, 2021
    Assignee: TRUE VELOCITY IP HOLDINGS, LLC
    Inventor: Lonnie Burrow
  • Patent number: 10132601
    Abstract: Modular cartridges are disclosed that can be initially assembled, disassembled, and reprocessed by hand. The cartridge case is suitable for use with a variety of projectile designs and weights and for use with a range of propellant amounts and primer types. The variety of projectiles and range of propelling forces permits the present invention to provide cartridges for all types of uses, including indoor and outdoor target shooting, training, non-lethal self-protection, and lethal uses. The cartridges include a case, a projectile, a primer, and a selectable amount of propellant (if any), and primer housing insert? and which is configured to be releasably attached to the striking end of the case and to contain the primer and the desired amount of propellant.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 20, 2018
    Inventor: William Joseph Nemec
  • Patent number: 10107608
    Abstract: A fractionated-combustion cartridge is made by inserting a bushing into the cartridge case at the height of the bottom, the bushing being coaxial with said cartridge case, and the face of which, facing the interior of the cartridge case, is provided with a trigger guard coinciding with the diameter of said face.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: October 23, 2018
    Inventor: Salvatore Tedde
  • Patent number: 10048049
    Abstract: The present invention provides a polymeric ammunition cartridge having polymer cartridge with a metal primer insert having a primer recess and a primer diffuser cup or ring inserted into the primer recess.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: August 14, 2018
    Assignee: True Velocity, Inc.
    Inventor: Lonnie Burrow
  • Patent number: 9921039
    Abstract: A high velocity ignition system for ammunition including an casing, a primer, a payload, a first propellant region, a flash tube, a second propellant and at least one channel. The casing has a base portion and a forward portion. The primer is provided in the base portion. The payload is provided proximate the forward portion. The first propellant region is located in the casing intermediate the primer and the payload. The flash tube substantially extends between the primer and the first propellant region. The second propellant region is located in the casing intermediate the first propellant region and the base portion. The at least one channel extends between the first propellant region and the second propellant region.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: March 20, 2018
    Assignee: Vista Outdoor Operations LLC
    Inventor: Chris Billings
  • Patent number: 9857151
    Abstract: An ammunition primer assembly is provided that includes, but is not limited to a cup having a base and a sidewall, a priming composition located in the cup and disposed on the base, an anvil located in the cup an upper surface, a lower surface and a side surface abutting the sidewall. The anvil defining a central channel formed therethrough. A portion of the base of the cup forms a striking surface. The striking surface is adjacent to a portion of the primer composition that is adjacent to the lower surface of the anvil. The striking surface is offset from a center of the cup.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: January 2, 2018
    Assignee: General Dynamics Ordnance and Tactical Systems—Canada, Inc.
    Inventors: Sylvain Dionne, Pierre Duchesne, Eric Toutant
  • Patent number: 9658038
    Abstract: Systems, methods and apparatus are provided through which in some implementations an ammunition cartridge includes a cartridge casing having a longitudinal center axis, a primer pocket positioned adjacent to the cartridge casing, a powder pocket positioned adjacent to the primer pocket, a powder/propellant in the powder pocket, a piston bore positioned adjacent to the powder pocket, a piston in the piston bore, and a payload bay positioned adjacent to the payload bay, wherein the piston is not coupled to the cartridge, wherein the piston is in direct contact with the payload bay so that pressure from powder/propellant is immediately and directly applied to the payload bay having a payload, wherein a diameter of the powder pocket is less than an inside diameter of the cartridge casing to provide a reduced velocity to the payload.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: May 23, 2017
    Inventor: James Dunnam
  • Patent number: 9534877
    Abstract: A low energy mechanical operating cartridge has an inner regulator core (13) supporting a projectile (21) slidably engaged in a primer casing (19). The regulator core acts to control the velocity at which the projectile is propelled from a firearm (61), and the primer casing carries the explosive propellant (25) necessary to generate the required energy to launch the projectile. To improve the operation of the cartridge and ejection of the cartridge from the firearm, the primer casing is configured to efficiently slide on the regulator core in a rearward recoil action, while robust gas seals are maintained between the casing and regulator core.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: January 3, 2017
    Assignee: PDT Tech, LLC
    Inventors: Rick Huffman, David Kline
  • Patent number: 9513096
    Abstract: One embodiment of the present invention provides methods of making a polymeric ammunition cartridge. 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. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 6, 2016
    Assignee: TRUE VELOCITY, INC.
    Inventor: Lonnie Burrow
  • Patent number: 9329004
    Abstract: A reusable shell casing having a housing with exterior grooves having a substantially central bore with a tapered end capable of receiving a payload and an opposite threaded end adapted to receive a novel reusable high pressure chamber assembly containing a removable powder chamber, a burst disk, and a threaded insert. The chamber assembly has a central bore having an upper bore portion that is cylindrically shaped having a threaded surface adapted to secure to the threaded portion of a threaded insert. The central bore also has a lower bore portion that is cylindrically shaped having a surface that is adapted to closely contour the circumference of the removable powder chamber. The powder chamber has a primary end having a primary opening adapted to receive a propellant located opposite a secondary end having a protrusion. The protrusion has a secondary opening adapted to receive a primer.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: May 3, 2016
    Inventor: Scot M Pace
  • Patent number: 9121614
    Abstract: Embodiments of the present invention relate generally to cartridges and modifications for an M16/AR15 rifle. In one embodiment, a modified M16/AR15 rifle or carbine includes a bolt having a maximum outside diameter greater than that of a standard M16/AR15 bolt; and a bolt extractor pivoted to the bolt. The bolt and the bolt extractor are operable to: transport a cartridge from a magazine to a barrel, and eject a spent cartridge from the barrel. The rifle or carbine further includes a barrel extension configured to receive the bolt; a standard M16/AR15 upper receiver coupled to the barrel extension; a standard M16/AR15 lower receiver coupled to the upper receiver.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: September 1, 2015
    Inventor: Lawrence S. Kramer
  • Patent number: 9010248
    Abstract: A non-spinning 40 mm ammunition round for firing in an M320 grenade launcher. The round includes a cylindrical shaped gun sleeve cartridge case, which covers the standard rifling inside the M320, and thus presents a smooth bore surface to the fired ammunition. Because the ammunition is not launched in a spinning mode, it may now comprise those guidance and camera components as may be desired which components would not have been possible to employ on a round that is spinning.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 21, 2015
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Leon Manole, Arthur Ricardo Pizza, Ernest Lee Logsdon, Gary Anthony Pacella, Anthony J. Sebasto
  • 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
  • Patent number: 8919254
    Abstract: A vessel, such as a rocket motor tube, comprised of an insert, and a joint that allows the insert to decouple from the vessel to relieve pressure when subjected to excessive temperatures and/or a predetermined temperature or temperature range.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: December 30, 2014
    Assignee: General Dynamics-OTS, Inc.
    Inventors: Matthew D. Diehl, Eric Michael Schneck, Gregory Norman Bogan
  • Patent number: 8869701
    Abstract: The present invention describes an improved cartridged projectile (100). The cartridged projectile (100) comprises a projectile (110) seating at a mouth of a cartridge case (130). The cartridge case (130) has a base (134) that houses a high pressure chamber (150). A side of the high pressure chamber (150) is capped by a pressure disc (170), which is secured onto the base of the cartridge case by a nozzle ring (160). The nozzle ring (160) has a tapered or conical surface that allows the pressure disc (170) to flex, and a surface (171) of the pressure disc (170) exterior of the high pressure chamber has intersecting V-shaped grooves (172). When propellant in the high pressure chamber (150) is burned efficiently, high pressure gases developing inside the high pressure chamber cause the pressure disc (170) to rupture at a predetermined pressure along the grooves (172) so that the gases propel the projectile (110) out of a barrel at a higher speed of about 100 m/s or more.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: October 28, 2014
    Assignee: Advanced Material Engineering Pte Ltd
    Inventors: Cheng Hok Aw, Chee Keong Yak, Soo Chew Sie, Renjie Xie
  • Patent number: 8850986
    Abstract: The present invention relates to a novel cylindrical drum design to eliminate the need for the adhering method in the primer's design, while providing protection against the effects of temperature variance, age, and physical movement of the cartridge. The present invention provides continuous operable positioning of the priming mixture between the firing pin and the disc area (anvil) without requiring the addition of glue to the priming mixture. A cylindrical disk provides a shelf for containing an amount of starter priming mixture that replaces the conical anvil. A throat provides a restriction to maintain the mixture on the shelf, and provides for the flame to travel to a main conical or other shaped chamber to provide an efficient flame to the main propellant chamber for efficient and complete burning of the propellant. Seals may be provided at either or both ends of the primer.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: October 7, 2014
    Inventor: Anwar A. M. Alalati
  • Publication number: 20140224144
    Abstract: The present invention relates to a cartridge casing for firearm ammunition and to a method of manufacturing such casing. The casing (1) comprises an elongate interior cavity (4) and extends along a longitudinal axis (5). The cavity (4) is open at the top end of the casing (1) and is defined radially by a circumferentially extending sidewall (3) formed by an elongate tubular portion and at the bottom by a bottom wall (2) which is connected to an axial end of the tubular portion and comprises a bore (7). The casing (1) further comprises in a lateral outer surface an annular projection (18) located proximate the bottom end of the casing (1) and extending circumferentially in a plane perpendicular to the longitudinal axis (5) of the casing (1). The casing (1) comprises an elongate tubular sleeve component (10) open at both axial ends and a separate bottom component (11) fixedly secured to the sleeve component (10).
    Type: Application
    Filed: July 6, 2012
    Publication date: August 14, 2014
    Inventor: Hans-Jurgen Neugebauer
  • Patent number: 8578855
    Abstract: A vessel, such as a rocket motor tube, comprised of an insert, and a joint that allows the insert to decouple from the vessel to relieve pressure when subjected to excessive temperatures and/or a predetermined temperature or temperature range.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: November 12, 2013
    Assignee: General Dynamics Armament and Technical Products, Inc.
    Inventors: Matthew D. Diehl, Eric Michael Schneck, Gregory Norman Bogan
  • 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: 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
  • Patent number: 8365669
    Abstract: A cartridge for non-lethal applications comprises a posterior portion 1 which extends axially to provide a cylindrical casing. An anterior portion comprises of a nose portion 2 with a centrally located recess 8 for receiving a projectile, and an axially extending piston 3 which is slidably engaged in the chamber defined by the cylindrical casing 1. A posterior primer 4 is located to the end of the posterior portion which is most distal to the nose portion 2. An anterior primer 5 sits just behind the recess 8 of the nose portion 2. A plastic striker is located in the chamber defined by the cylindrical casing 1 and comprises of a sealing flange portion 6 and striking nose portion 7. The striking nose portion 7 locates snugly but slidably in a second chamber provided axially within the piston 3.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: February 5, 2013
    Assignee: UTM IP Limited
    Inventor: Michael Ernest Saxby
  • Patent number: 8312812
    Abstract: A reloadable munition having a reusable shell base having a hollow cavity on a bottom face to accept a propulsion system reload and a reusable projectile inserted into a top portion of the shell base, and a mechanical retainer for the propulsion system reload in the shell base to provide reloading and reusing of the munition by hand.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: November 20, 2012
    Assignee: Safariland, LLC
    Inventors: John A. Kapeles, John A. Hultman
  • Publication number: 20120186480
    Abstract: A two-piece reusable shell for use with launching systems. The launcher shell has a top tube portion that screws onto a base portion, which houses an ignition source and a propellant. The reusable shell allows for efficient access to all portions of the shell and for easy interchangeability between tubes of differing lengths and one standard base unit.
    Type: Application
    Filed: May 16, 2011
    Publication date: July 26, 2012
    Inventor: Mark Allen Rogers
  • Patent number: 8186274
    Abstract: A modified fluid delivery cartridge. A conventional straight-sided high pressure cartridge case is primed and then filled with solid propellant. A burst cup is inserted in the case mouth. The burst cup is preferably embossed with a cross or other shape to promote predictable rupture. A charge casing is provided which opens into a high pressure cartridge receiver bounded by an inner charge casing wall. The inner charge casing wall is provided with a step, in which the diameter of the high pressure cartridge receiver is reduced. The high pressure cartridge case is pressed into the receiver in the charge casing wall. As the high pressure cartridge case is being pressed into place, the straight wall of the case passes over the step in the inner charge casing wall, which deforms the straight wall to form a neck. This neck captured the burst cup within the high pressure cartridge case.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: May 29, 2012
    Assignee: Martin Electronic
    Inventor: Bruce G. Van Stratum
  • Publication number: 20120024183
    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: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: MNP Corporation
    Inventor: Thomas R. Klein
  • Patent number: 8037830
    Abstract: A cartridge is described having a cartridge casing (1) and having a propellant cup (4), which is inserted in the cartridge casing (1), receives a sub-caliber projectile (5) in a formfitting manner, and is manufactured from plastic, and which separates the projectile (5) from the propellant charge in the cartridge casing (1) and has axial separation points (15) along its jacket (10). To ensure an advantageous length for the projectile, it is suggested that the propellant cup (5) have at least one pocket (9), extending in a cavity between the projectile (5) and the cartridge casing (1) and/or in a cavity of the projectile (5) and open toward the base (2) of the cartridge casing (1), for receiving a part of the propellant charge.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: October 18, 2011
    Inventor: Udo Winter
  • Publication number: 20110048269
    Abstract: A rifle cartridge is formed to have an overall length of about 2.800 inches, or 71.12 millimeters. The shell case has a case length between 1.900 inches and 1.950 inches and a neck forming a mouth for a standard .270 caliber bullet. The shoulder adjoining the neck widens from the neck to a diameter of between 0.445 inches to 0.465 inches, and preferably 0.450 inches. The adjoining shell body forms the main powder chamber for receiving an explosive charge. A head adjoins the shell body and forms a base of the shell case. The head has a primer pocket formed therein communicating with the main powder chamber through a vent hole formed between the primer pocket and the main powder chamber.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: SCH PATENTE GMBH
    Inventor: Reinhard Schuster
  • Patent number: 7878120
    Abstract: A cartridge includes a cartridge case base having a bottom surface, a primer and an annular recess formed in the bottom surface, the annular recess being concentric with the primer; first and second concentric conductive rings disposed in the annular recess, the first and second rings being radially spaced apart and substantially flush with the bottom surface of the cartridge case base, the first and second rings being electrically insulated from the cartridge case base and the primer; a first data pin electrically connected to the first conductive ring and extending into an interior of the cartridge case base; and a second data pin electrically connected to the second conductive ring and extending into the interior of the cartridge case base, the first and second data pins being electrically insulated from the cartridge case base.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 1, 2011
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Robert Nodarse, Anthony Vella, Thomas V. Louzeiro, David P. Fairman, Jr., Steven Pigliavento, Jessica M. Monahan, Amy Lynn Mera
  • Patent number: 7841279
    Abstract: A high pressure cartridge case is provided for firearms with blowback operating systems. The cartridge case is provided with a primer support member that supports a primer in a rearward end of a cartridge case. The support member is slideable rearwardly in the cartridge case when the cartridge is fired. The components expand to seal with the cartridge case to prevent the escape of gas around the support member when the propellant is ignited.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: November 30, 2010
    Inventors: George L. Reynolds, S. Paul Reynolds
  • 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
  • Publication number: 20100258023
    Abstract: A high pressure cartridge case is provided for firearms with blowback operating systems. The cartridge case is provided with a primer support member that supports a primer in a rearward end of a cartridge case. The support member is slideable rearwardly in the cartridge case when the cartridge is fired. The components expand to seal with the cartridge case to prevent the escape of gas around the support member when the propellant is ignited.
    Type: Application
    Filed: May 24, 2007
    Publication date: October 14, 2010
    Inventors: George L. Reynolds, S. Paul Reynolds
  • Patent number: 7802520
    Abstract: A modified cartridge assembly including a projectile having a gas generator proximate its aft end. The projectile includes an aft closure having a cavity filled with gas generating material. The gas generating material is ignited around the time the projectile exits the weapon's muzzle. The gas generating material then burns while the projectile is in flight, spewing pressurized gas into the wake region immediately behind the projectile. The pressurized gas reduces the projectile's base drag.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: September 28, 2010
    Assignee: Martin Electronics
    Inventor: Bruce G. Van Stratum
  • Publication number: 20100147177
    Abstract: A modified fluid delivery cartridge. A conventional straight-sided high pressure cartridge case is primed and then filled with solid propellant. A burst cup is inserted in the case mouth. The burst cup is preferably embossed with a cross or other shape to promote predictable rupture. A charge casing is provided which opens into a high pressure cartridge receiver bounded by an inner charge casing wall. The inner charge casing wall is provided with a step, in which the diameter of the high pressure cartridge receiver is reduced. The high pressure cartridge case is pressed into the receiver in the charge casing wall. As the high pressure cartridge case is being pressed into place, the straight wall of the case passes over the step in the inner charge casing wall, which deforms the straight wall to form a neck. This neck captured the burst cup within the high pressure cartridge case.
    Type: Application
    Filed: June 6, 2007
    Publication date: June 17, 2010
    Inventor: Bruce G. Van Stratum
  • Patent number: 7581344
    Abstract: A delayed action extractor for a blowback weapon operating system and a cartridge provided with a slideable primer and primer-supporting sleeve in a cartridge designed for use with the delayed action extractor.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: September 1, 2009
    Assignee: Armalite, Inc.
    Inventors: George L. Reynolds, S. Paul Reynolds
  • Patent number: 7546804
    Abstract: An artillery charge includes a generally cylindrical body with a hollow core; propellant disposed in the body and first energetic material disposed in the hollow core; and a seal disposed over one end of the hollow core, the seal including second energetic material disposed therein. A laser igniter ignites the second energetic material in the seal, thereby providing more reliable ignition of the first energetic material and the propellant. The artillery charge reliably ignites using a lower powered laser than known charges.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: June 16, 2009
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Anthony E. Tartarilla, III, Henry Kerwien, Thomas DeVoe, Joseph Leone, Luke Helsel, Nicholas Turner
  • Patent number: 7546805
    Abstract: A detonator includes a pyrotechnic material and a first explosive. The pyrotechnic material ignites in response to a percussive impact, and the explosive detonates in response to the ignition of the pyrotechnic material. The detonator may include a plate, and the plate forms a projectile in response to energy released by the ignition of the pyrotechnic material to detonate an additional explosive. A passageway of the detonator may be located between these explosives, and the passageway may include a cross-sectional profile that substantially varies along a path between the explosives.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: June 16, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Wallace E. Voreck, Wenbo Yang
  • Patent number: 7458322
    Abstract: A cartridge for firearms includes a bullet connected to a casing. The casing includes a cylindrical wall that extends to an end member opposite the bullet, a hollow interior formed by the wall and the end member, and a receptacle for receiving a priming composition. Anvils or projections are provided in the casing to compress the priming composition between the end member and the projection or anvil with a firing pin engaging the end member. Propellant in the hollow interior is ignited by the compressed priming composition.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: December 2, 2008
    Inventors: S. Paul Reynolds, George L. Reynolds
  • Patent number: 7451703
    Abstract: Apparatus for venting munitions exposed to high ambient temperatures. The munition includes a casing having a nose end and an opening in the nose end; a lifting plug disposed in the opening in the nose end, the lifting plug including a bore therethrough; and a seal disposed in the bore in the lifting plug, the seal comprising an ionomer. The munition may further include a fuze well disposed in the casing, the opening in the nose end leading into the fuze well; and a second seal disposed in the fuze well. The seals will rupture and vent the munition's explosive to the atmosphere.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: November 18, 2008
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Shahram Dabiri
  • Patent number: 7322295
    Abstract: A cartridge munition, as disclosed in U.S. Pat. No. 7,107,909, includes a cartridge shell (3) and a projectile (2) inserted into it. A propulsion chamber (4) is provided within the cartridge shell that receives a propulsive charge (5) that may be ignited by means of a pyrotechnic igniter (13) and that develops propulsive gases that act on the base (8) of the projectile, driving it out of the cartridge shell. In order to prevent the pyrotechnic igniter from igniting spontaneously, and from igniting the propulsive charge (5) because of the ambient temperature or because of a fire, which would cause the cartridge shell and projectile to be separated and fly apart, it is proposed by the invention to provide exhaust channels (14) between the propulsion chamber and the exterior of the cartridge shell (3) that are filled with a fusible material, particularly a fusible metal (15). The fusible material has a lower melting point than the ignition point of the igniter (13) and of the propulsive charge (5).
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: January 29, 2008
    Assignee: Nico-Pyrotechnik Hanns-Juergen Diederichs & Co, KG
    Inventor: Detlef Haeselich