Case Patents (Class 102/464)
  • Patent number: 11067370
    Abstract: A multi-piece ammunition cartridge casing includes a casing base extending along a central axis and defining an opening extending axially into the casing base from the distal base end. The inner casing surface defines a circumferential groove with a groove radius greater than a radius of an adjacent portion of the opening. The cartridge casing also includes a casing body with a proximal end portion disposed in the opening of the casing base. The casing body is secured to the casing base by way of a flange protruding radially outward in mating contact with the circumferential groove.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: July 20, 2021
    Assignee: Sig Sauer, Inc.
    Inventors: Jason W. Imhoff, Thomas J. Burczynski, Keith E. Brown, Robert M. Grove
  • Patent number: 11060828
    Abstract: A double shoulder angle firearm cartridge for AR-15, bolt action rifles, pistols, and any other firearm includes a firearm cartridge comprising a case that holds a primer, powder, and bullet. The case is defined by a case head forming a rim and an extractor groove, a body section extending from the case head, at least two shoulder angles extending from the body section, and a neck section extending from the shoulder angles. The shoulder is defined by at least two angles tapering into each other in an integral configuration. The first angle is 30°; and the second angle being a 17° 30? shoulder angle, substantially the same as the 7.62×39 Russian round. The diameter of the case is approximately 0.447 inches. The length of the case is approximately 1.530 inches.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: July 13, 2021
    Inventor: Richard J. Gemmrig
  • Patent number: 10976140
    Abstract: An ammunition cartridge having a cup-shaped casing. The cup-shaped casing has a closed reward end with a rearward diameter and an open forward end having a forward diameter that is larger than the rearward diameter. A sidewall extends between the peripheries of the rearward end and the top end of the casing. The sidewall tapers from the smaller rearward diameter to the larger forward diameter along a length of a hollow interior of the casing that holds a propellant charge.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: April 13, 2021
    Assignee: CAPCO, LLC
    Inventors: Stephen K. Wood, Matt L. Bryner
  • Patent number: 10871361
    Abstract: Disclosed is a cartridge case for various caliber ammunition that can consist essentially of a powdered metal and/or powdered metal alloy(s) that is formed into the cartridge case through an injection mold processing. Also disclosed is a method for forming a cartridge case, which may include use of Metal Injection Molding (“MIM”) processes to produce the cartridge case which retains a primer, propellant, and/or a bullet. Also disclosed are embodiments related to a case telescoped cartridge that may include a cap and a body. The body can consist essentially of or consists entirely of a powdered metal and/or powdered metal alloy(s) that has been formed through MIM. The cap can comprise plastic that has been formed through plastic molding or comprise powdered metal and/or powdered metal alloy(s) that has been formed through MIM.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: December 22, 2020
    Assignee: Concurrent Technologies Corporation
    Inventors: Todd Skowron, Juan Valencia, Shawn Rhodes
  • Patent number: 10852114
    Abstract: An entangling projectile for use in a projectile deployment system includes a pair of pellets, a flexible tether connecting the pellets, and an engagement adhesive. The engagement adhesive is applied to at least a portion of one of the pair of pellets or the tether and is operable to adhesively engage the skin or clothing of a subject engaged by the entangling projectile.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: December 1, 2020
    Assignee: Wrap Technologies, Inc.
    Inventors: Elwood Norris, John Bailey
  • Patent number: 10794671
    Abstract: A high strength polymer-based cartridge having a first end; a neck disposed at the first end and a shoulder disposed below the neck to form a bottleneck cartridge. A second end is opposite the first end and an insert is engaged to the second end. A propellant chamber is formed between the shoulder and the insert and has a volume. An extension extends from the neck opposite the shoulder and a cap is formed on the extension, partially sealing the propellant chamber.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: October 6, 2020
    Assignee: PCP Tactical, LLC
    Inventors: Charles Padgett, Robert Lanse Padgett
  • Patent number: 10429160
    Abstract: An artillery shell is fired out of a gun towards a fire. A trigger releases a fire-retarding material from the artillery shell to retard the fire.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: October 1, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Todd W. Erickson, Sina Golshany, Shelly A. Songstad, Adriana W. Blom, Jacqueline A. Artis, Christopher R. Holtorf, Natalie Daughtry
  • Patent number: 10359263
    Abstract: A polymer-based cartridge for subsonic ammunition with a first end having a projectile disposed in a mouth, a shoulder forming a bottleneck cartridge; and at least a polymer wall between the first end and a second end opposite the first. An insert is joined to the second end, having an extraction rim and groove, a primer pocket communicating with a flash hole, and the flash hole communicating with a propellant chamber. A sleeve section is also included and the sleeve section and the wall form the propellant chamber having a thickness at least 1.25 times greater than a standard thickness of a wall of a standard cartridge. The propellant chamber between the mouth and the insert is unobstructed and comprises a powder load having a load density greater than 40%.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: July 23, 2019
    Assignee: PCP Tactical, LLC
    Inventors: Charles Padgett, Robert Lanse Padgett
  • Patent number: 10359261
    Abstract: Casing for ammunition for hand guns made from aluminium or aluminium alloy, and which has a coating of 2-50 ?m of CaCO3(s) on the inner and outer surfaces of the casing, and a method for producing the coated casing.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: July 23, 2019
    Assignee: JH CASINGS AS
    Inventors: Johans Hamarsnes, Sveinung Gihle Raddum
  • Patent number: 10197366
    Abstract: A polymer-based cartridge for subsonic ammunition with a first end having a projectile disposed in a mouth, a shoulder forming a bottleneck cartridge; and at least a polymer wall between the first end and a second end opposite the first. An insert is joined to the second end, having an extraction rim and groove, a primer pocket communicating with a flash hole, and the flash hole communicating with a propellant chamber. A sleeve section has a metal or a metal alloy, extending from the insert toward the first end, and at least partially covered by the wall. The sleeve section and the wall form the propellant chamber having a thickness at least 1.25 times greater than a standard thickness of a wall of a standard cartridge. The propellant chamber between the mouth and the insert is unobstructed, and comprises a powder load having a load density greater than 40%.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 5, 2019
    Assignee: PCP Tactical, LLC
    Inventors: Charles Padgett, Robert Lanse Padgett
  • Patent number: 9926620
    Abstract: New 2xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 2xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 2xxx aluminum alloy bodies may realize improved strength and other properties.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: March 27, 2018
    Assignee: Arconic Inc.
    Inventors: Rajeev G. Kamat, John M. Newman, Ralph R. Sawtell, Jen C. Lin
  • Patent number: 9709367
    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: Grant
    Filed: February 22, 2017
    Date of Patent: July 18, 2017
    Inventor: Hans-Jurgen Neugebauer
  • Patent number: 9644930
    Abstract: The present invention provides a polymeric ammunition having a polymeric cartridge, projectile and a primer insert having a primer diffuser cup with a primer inserted therein.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: May 9, 2017
    Assignee: TRUE VELOCITY, INC.
    Inventor: Lonnie Burrow
  • Patent number: 9587298
    Abstract: New magnesium-zinc aluminum alloy bodies and methods of producing the same are disclosed. The new magnesium-zinc aluminum alloy bodies generally include 3.0-6.0 wt. % magnesium and 2.5-5.0 wt. % zinc, where at least one of the magnesium and the zinc is the predominate alloying element of the aluminum alloy bodies other than aluminum, and wherein (wt. % Mg)/(wt. % Zn) is from 0.6 to 2.40, and may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new magnesium-zinc aluminum alloy bodies may realize improved strength and other properties.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: March 7, 2017
    Assignee: ARCONIC INC.
    Inventors: Jen C. Lin, John M. Newman, Ralph R. Sawtell, Rajeev G. Kamat, Darl G. Boysel, Gary H. Bray, James Daniel Bryant, Brett P. Connor, Mario Greco, Gino Norman Iasella, David J. McNeish, Shawn J. Murtha, Roberto J. Rioja, Shawn P. Sullivan
  • Patent number: 9429407
    Abstract: One embodiment of the present invention provides a polymeric ammunition comprising: a substantially cylindrical insert; a substantially cylindrical polymeric middle body comprising a substantially cylindrical polymeric bullet-end opposite 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 an circumferential surface and into the primer flash hole aperture to form a primer flash hole; and a substantially cylindrical open-ended polymeric bullet-end component connected to the substantially cylindrical polymeric bullet-end and opposite a bullet-end aperture; a propellant at least partially filling the powder chamber; a primer inserted into the primer flash hole aperture; and a bullet frictionally fitted in the bullet-end aperture, wherein the primer, the propellant and the bullet form a sealed propellant chamber.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: August 30, 2016
    Assignee: TRUE VELOCITY, INC.
    Inventor: Lonnie Burrow
  • Patent number: 9404719
    Abstract: A case for an ammunition cartridge including a tubular member having a central axis which includes: a head which includes, a head face which is disposed substantially perpendicular to the central axis, and an extraction groove adjacent to the head face, the extraction groove circumscribing the central axis; a body abutting the head which comprises an internal chamber, a bullet receiving end spaced from the body along the central axis, a convex curved segment abutting the body, the convex curved segment being a first circular curve having a first radius of approximately 0.0263 inches, a frusto-conical segment abutting the convex curved segment, and a concave curved segment abutting the frusto-conical segment, the concave curved segment being a second circular curve having a second radius of approximately 0.1049 inches.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: August 2, 2016
    Inventor: William R. Bowers
  • Patent number: 9359660
    Abstract: New 6xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 6xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 6xxx aluminum alloy bodies may realize improved strength and other properties.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 7, 2016
    Assignee: Alcoa Inc.
    Inventors: Rajeev G. Kamat, John M. Newman, Ralph R. Sawtell, Jen C. Lin
  • Patent number: 9249484
    Abstract: New 7xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 7xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 7xxx aluminum alloy bodies may realize improved strength and other properties.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: February 2, 2016
    Assignee: ALCOA INC.
    Inventors: Rajeev G. Kamat, John M. Newman, Ralph R. Sawtell, Jen C. Lin
  • Patent number: 9194028
    Abstract: New 2xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 2xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 2xxx aluminum alloy bodies may realize improved strength and other properties.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: November 24, 2015
    Assignee: Alcoa Inc.
    Inventors: Rajeev G. Kamat, John M. Newman, Ralph R. Sawtell, Jen C. Lin
  • Patent number: 9016184
    Abstract: An improved cartridge case completely produced net shape on a progressive cold former that includes a trim to lengthy station with an internal shearing tool.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: April 28, 2015
    Assignee: National Machinery LLC
    Inventors: Thomas E. Hay, Jeffrey W. Carper, Stanley J. Wasserman
  • Publication number: 20150020706
    Abstract: Ammunition casings are described that include a base, a body coupled to the base, and one or more patterns on the body.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 22, 2015
    Inventor: Daniel L. Klement
  • 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
  • Publication number: 20140261044
    Abstract: Ammunition which includes a bullet having an effective caliber that is larger than its nominal caliber, comprised of a bullet body with a longitudinal cavity in the forward end, and one or more bores extending from the cavity to bore openings on the exterior of the bullet. In use, target media is gathered in the cavity and ejected under force through the bore openings, increasing the damage done by the bullet. Preferably, the bullet cavity and bores are filled with a polymeric or elastomeric material.
    Type: Application
    Filed: October 12, 2012
    Publication date: September 18, 2014
    Applicant: LWS AMMUNITION LLC
    Inventor: Lueder Seecamp
  • Publication number: 20140223789
    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: Application
    Filed: January 8, 2014
    Publication date: August 14, 2014
    Inventor: Lawrence S. KRAMER
  • Patent number: 8783152
    Abstract: A two piece, two-stage, reduced-energy mechanically operating cartridge is provided for launching, a configured bullet choice of various compositions from a dedicated or modified firearm. The cartridge unit is comprised of a primary case having a cavity to receive a propellant unit or propellant connection and a piston sleeve having a cavity to receive the configured bullet choice, the primary case coupled to the piston sleeve. The cartridge having a retracted pre-firing state and an expanded fired state whereby the piston sleeve and primary case telescope apart forcing, the firearm's slide or bolt to the rear, a mechanical operation opposed to a conventional cartridge with gas blow back operations.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: July 22, 2014
    Assignee: Alliant Techsystems Inc.
    Inventor: Rick Huffman
  • Publication number: 20140173959
    Abstract: A projectile is presented including a casing, a propellant, and a primer configured to ignite the propellant. The projectile also includes an electronic beacon incorporated within the casing of the projectile, the electronic beacon configured to emit at least one signal to be received by at least one electronic device located within a pre-established vicinity of the projectile. The electronic device provides a notification indicating proximity of the projectile. The electronic beacon may be a radio transceiver operating at, at least one of a plurality of frequencies. The electronic device may be a mobile device. The notification is a visual notification or an audible notification or a combination thereof. The notification may indicate a safe condition or a danger condition based on an identifier of the electronic beacon.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Inventors: Theodosios Kountotsis, Agjah Libohova
  • Publication number: 20140083319
    Abstract: An improved cartridge case completely produced net shape on a progressive cold former that includes a trim to lengthy station with an internal shearing tool.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: NATIONAL MACHINERY LLC
    Inventors: Thomas E. Hay, Jeffrey W. Carper, Stanley J. Wasserman
  • Patent number: 8627770
    Abstract: A cartridge assembly for large bore gun systems having an integrated retention assembly for maintaining propellant charges within the cartridge case. The cartridge case having an interior space for receiving propellant charges and an open proximate end through which the propellant charges can be fed. An insulating sleeve defining an interior channel is affixed to the cartridge case and extends out of the proximate end of the cartridge case. The interior channel serves as a chute through which propellant charges can be fed. After the propellant charges are loaded, the insulating sleeve is crimped closed to retain the propellant charges within the cartridge case. A closure plug can be inserted into the proximate end of the cartridge case after the insulating sleeve is crimped closed.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: January 14, 2014
    Assignee: BAE Systems Land & Armaments, L.P.
    Inventor: Gregg J. Severson
  • Patent number: 8616129
    Abstract: A cartridge useful as an activator of other systems, and related method of manufacture. The cartridge's casing includes a fuse delimited by placing a plate at each end staked to the casing for fixing the fuse. This configuration permits precise control of the length of the fuse during manufacture, eliminates the need for separate structures in the casing to aid fuse location, and simplifies manufacture and assembly. This configuration supports the fuse lessening stresses that can lead to fractures. A portion of the casing is thinned by a preselected amount to permit fracturing of the casing to launch the projectile. The projectile may be attached to the cartridge casing more simply, e.g. by screw threading.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: December 31, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Ryan Barrow, James Mackie-Smith
  • Publication number: 20130305950
    Abstract: A cartridge may be loaded with a powder column containing stratified, stacked layers of propellant, each powder layer over-compressed to a specified degree, with the burn rate controlled by the specified degree of over-compression applied to each respective powder layer. The application of a highly compressed powder column reduces the burn rate, and may force one or more of the powder layers to launch with the projectile down the barrel. Accordingly, the powder column is forced to burn in a manner similar to fuel burning in a solid fuel rocket engine. This greatly reduces the pressure(s) developed in the chamber, and permits the force of the burning powder to be efficiently focused on forward propulsion. The rapidly increasing set of sequential ignitions provides higher and higher energy densities with each subsequent ignition, and creates a more uniform linear acceleration of the projectile for the full length of the target barrel.
    Type: Application
    Filed: April 5, 2013
    Publication date: November 21, 2013
    Inventor: Charles W. Coffman, II
  • Patent number: 8505457
    Abstract: An austenitic stainless steel ammunition cartridge includes an outer region and a base, wherein the outer region is about 50%-80% of the thickness of the base, which serves to minimize the sidewall ironing required to form the cartridge. The cartridge blank can be formed by spin forming, compression forming, grinding, or a combination thereof. Tooling to form the insert can include at least a pair of blocks and inserts, at least one insert defining a centrally positioned aperture.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 13, 2013
    Assignee: AK Steel Properties, Inc.
    Inventors: Daniel Keith Scherrer, Joseph Alan Douthett
  • Patent number: 8448575
    Abstract: An improved 9 mm cartridge is provided and includes a 9 mm bullet, wherein the 9mm bullet weights at least 90 grains and is configured for operation with a 9 mm firearm, a 0.45 caliber Win Mag cartridge case having a case bottom portion communicated with a case top portion via a case middle portion, wherein the case bottom portion, the case middle portion and the case top portion define a case cavity and wherein the case top portion includes a top opening communicated with the case cavity, the top opening sized to interact with the 9 mm bullet. The improved 9 mm cartridge also includes a propellant for propelling the 9 mm bullet to a velocity of at least 1600 feet per second.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: May 28, 2013
    Inventor: Jeffrey D. Goddard
  • 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: 8443729
    Abstract: The present invention overcomes the limitations of the prior art by providing a centerfire rifle cartridge with a case having a head having a rim, a body extending from the head to a tapered shoulder, and a neck extending from the shoulder and defining a mouth receiving a bullet. The body has a straight external surface free of a protruding belt, and has a maximum diameter sized to closely fit for operation within a standard action of magnum width. The cartridge has an overall length sized to closely fit for operation within a standard action such as a short action or a long action.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: May 21, 2013
    Assignee: Hornady Manufacturing Company
    Inventor: Mitchell T. Mittelstaedt
  • 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: 8387537
    Abstract: A consumable cartridge for a muzzle loading firearm having a consumable cartridge case composed of a consumable solid material is set forth. The cartridge case including a central internal cavity, the cartridge case having a closed first end and a second end open to the central internal cavity for receipt of granular, explosive powder within the central internal cavity of the cartridge case and a bullet is secured to the closed first end of the cartridge case. The cartridge case is shaped and dimensioned for positioning within a bore of a rifle along with the bullet.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: March 5, 2013
    Assignee: Thundercharge Corp.
    Inventors: Giovanni Brus, William Lee Hearn, Greg Dixon
  • Patent number: 8381655
    Abstract: A cartridge casing for rifles is made from a high strength aluminum alloy. A method for making such cartridge casing includes the steps of (a) forming a cylindrical blank from an aluminum alloy having a tensile strength greater than 80,000 psi, and (b) rotating the blank at a rate greater than 500 rpm and forcing the blank into a die, the die having a bore with progressively reduced interior diameters which are less than the external diameter of the blank. In the method, the forcing of the blank into the die results in the finished cartridge casing having a distal end with an external diameter which is less than the external diameter of its proximal end.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: February 26, 2013
    Assignee: Spears Manufacturing Co.
    Inventors: Douglas Swingley, Robert Wayne Spears, Scott Miller, Mehroujan Shirvanian
  • Publication number: 20120285345
    Abstract: A cartridge casing for rifles is made from a high strength aluminum alloy. A method for making such cartridge casing includes the steps of (a) forming a cylindrical blank from an aluminum alloy having a tensile strength greater than 80,000 psi, and (b) rotating the blank at a rate greater than 500 rpm and forcing the blank into a die, the die having a bore with progressively reduced interior diameters which are less than the external diameter of the blank. In the method, the forcing of the blank into the die results in the finished cartridge casing having a distal end with an external diameter which is less than the external diameter of its proximal end.
    Type: Application
    Filed: March 28, 2012
    Publication date: November 15, 2012
    Inventors: Douglas Swingley, Robert Wayne Spears, Scott Miller, Mehroujan Shirvanian
  • Publication number: 20120204751
    Abstract: A cartridge assembly for large bore gun systems having an integrated retention assembly for maintaining propellant charges within the cartridge case. The cartridge case having an interior space for receiving propellant charges and an open proximate end through which the propellant charges can be fed. An insulating sleeve defining an interior channel is affixed to the cartridge case and extends out of the proximate end of the cartridge case. The interior channel serves as a chute through which propellant charges can be fed. After the propellant charges are loaded, the insulating sleeve is crimped closed to retain the propellant charges within the cartridge case. A closure plug can be inserted into the proximate end of the cartridge case after the insulating sleeve is crimped closed.
    Type: Application
    Filed: June 7, 2011
    Publication date: August 16, 2012
    Inventor: Gregg J. Severson
  • Publication number: 20120174813
    Abstract: A hybrid ammunition cartridge for a firearm is includes a substantially cylindrical casing defining a body portion having a neck at a forward end and a base at a rearward end, the base including a rim. A projectile is mounted in the neck. Brass is used in the casing at the neck to hold the projectile at the proper crimp. Brass is also used in the rim to house the primer and to provide a surface at which a hook or any suitable mechanism can be used to extract the cartridge from the firearm. The remaining body portion is then manufactured from a composite material having suitable mechanical properties.
    Type: Application
    Filed: May 6, 2010
    Publication date: July 12, 2012
    Inventor: Vin Battaglia
  • Patent number: 8215237
    Abstract: Methods and apparatus for a data link system according to various aspects of the present invention may be incorporated into a cartridge system. The cartridge system may comprise a case and a projectile. The data link system may be connected to the case and the projectile to provide signals. The data link system a first connection point and a second connection point disposed on the case and an electrical connector connected to the first connection point and the second connection point.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: July 10, 2012
    Assignee: Raytheon Company
    Inventor: Chris E. Geswender
  • Patent number: 8156870
    Abstract: Disclosed is an ammunition cartridge case that includes a sleeve, a base fixedly attached to the sleeve and a fiber reinforced polymer composite annulus that is at least partially within the base. In certain embodiments, the sleeve and the base are formed partly or entirely from a metal, for example steel or stainless steel. The base has a central aperture that affords for the annulus ring to fit within. The annulus is dimensioned such that it fits securely within the central aperture of the base and has a center aperture wherein a primer can be located. The annulus ring contains a volume of composite fibers ranging from 10 to 90 volume percent. The annulus isolates the primer from the cartridge case and thereby prevents galvanic corrosion between the primer and case. In addition, a metallic foil can be present between the annulus and the cartridge case in order to assure proper securement of the annulus therewithin.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: April 17, 2012
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Joseph T. South
  • Publication number: 20120037029
    Abstract: Ammunition casings are described that include a base, a body coupled to the base, and one or more patterns on the body.
    Type: Application
    Filed: May 23, 2011
    Publication date: February 16, 2012
    Inventor: Daniel L. Klement
  • 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
  • Publication number: 20120012024
    Abstract: An austenitic stainless steel ammunition cartridge includes an outer region and a base, wherein the outer region is about 50%-80% of the thickness of the base, which serves to minimize the sidewall ironing required to form the cartridge. The cartridge blank can be formed by spin forming, compression forming, grinding, or a combination thereof. Tooling to form the insert can include at least a pair of blocks and inserts, at least one insert defining a centrally positioned aperture.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 19, 2012
    Inventors: Daniel Keith Scherrer, Joseph Alan Douthett
  • Publication number: 20110214583
    Abstract: The present invention includes a modular cartridge system for firearms. The system includes a plurality of cartridges that each having a base, a rim, a case, and a projectile coupled to the case. Each cartridge of the system includes base and rim dimensions that are functionally equivalent to each other, projectile diameters that are variable between 0.220 inches and 0.4050 inches, and case lengths that are variable between 0.500 inches and 2.000 inches.
    Type: Application
    Filed: July 16, 2009
    Publication date: September 8, 2011
    Inventor: Kenneth Dutch
  • Patent number: 8011301
    Abstract: A cartridge case for a firearm is formed to contain a .338 caliber bullet. The case includes a cylindrical body portion with a central aperture in the head end for receipt of a primer and a cartridge extraction groove formed around the periphery of the body portion adjacent the head end. A frusto-conical shoulder portion tapers radially inwardly from the body portion and a generally cylindrical neck portion extends longitudinally from the shoulder portion. The length of the body portion is approximately 1.8813 inches and the outside diameter of the body portion at the shoulder portion is 0.5709±0.0059 inches. The length of the shoulder portion is 0.2727 inches. The length of the neck portion is 0.3381 inches and the outside diameter of the neck portion is 0.3669 inches. The case encloses a volume designed to receive an amount of propellant in a range of 82.0 grns to 97.8 grns.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: September 6, 2011
    Inventor: Jimmie Sloan
  • Patent number: 7984668
    Abstract: A two piece, two-stage, rechargeable, reusable, reduced-energy mechanically operating cartridge is provided for launching a bullet of various compositions from a dedicated or modified firearm. The cartridge unit is comprised of a primary case, a piston sleeve, a propellant unit, and a bullet choice of a solid light weight material for inanimate-target applications or a “marking” version for non-lethal live-target training applications. Cartridge includes a piston sleeve and a primary case coupled together via a channel and cog locking/traveling/unlocking system. The primary case includes a substantially non-deformable jacket defining a cavity to receive a propellant unit or propellant connection and provides the channels to receive piston sleeves cogs for a locking/traveling/unlocking feature. The piston sleeve includes a substantially non-deformable jacket defining a cavity to receive configured bullet.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: July 26, 2011
    Assignee: Federal Cartridge Company
    Inventor: Rick Huffman
  • Publication number: 20110174188
    Abstract: A rifle or handgun cartridge is formed to have an overall length of about 2.260 inches, or 57.4 millimeters. The shell case has a case length between 1.550 inches and 1.650 inches and a neck forming a mouth for a standard .224 caliber bullet. The shoulder adjoining the neck widens from the neck to a diameter of between 0.400 inches to 0.415 inches, and preferably 0.4059 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: January 21, 2010
    Publication date: July 21, 2011
    Applicant: SCH PATENTE GMBH
    Inventor: Reinhard Schuster
  • Publication number: 20110174187
    Abstract: A modified 40 mm grenade round designed to breach doors without throwing a substantial amount of shrapnel into a building's interior. The modified round includes a standoff device located on its forward end. The standoff device detonates the explosive charge within the projectile before the nose of the projectile actually strikes the target. This early detonation throws a pressure wave again the door's exterior, forcing the door inward. Shrapnel produced by the detonation remains primarily outside the door. Thus, the modified projectile is able to blow open a door without throwing a significant amount of shrapnel into a building's interior.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 21, 2011
    Inventor: Bruce G. Van Stratum