Barrels Patents (Class 42/76.01)
  • Patent number: 9939222
    Abstract: A lightweight mortar tube is presented herein having at least three layers: (1) a first inner bore facing layer comprised of a metal having a melting point greater than 800° C.; (2) a second thermal barrier layer comprised of a ceramic material attached to the first layer, and (3) a third outer shell layer attached to the second layer comprising of fiber reinforced composite material where the composite material is either a polymer, metal or ceramic. All of the layers are cohesively integrated with each other into a seamless wall. The improved multi-layered mortar tube described herein is lighter, yet maintains the same performance standards as comparable steel-based mortar tubes.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: April 10, 2018
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Christopher P. Mulligan, Andrew Littlefield, Joshua Root
  • Patent number: 9823034
    Abstract: A viscoelastic barrel dampener is provided including a shroud having an inner surface and an outer surface. A cavity is defined by the inner surface of the shroud. A barrel is positioned within the cavity. The barrel has an outer surface. A viscoelastic dampening material is disposed within the cavity and substantially fills a volume defined by the outer surface of the barrel and the inner surface of the shroud. At least one magnet is positioned on the outer surface of the shroud to apply a magnetic field to the viscoelastic dampening material.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: November 21, 2017
    Assignee: Dreadnought Technologies, LLC
    Inventors: Christopher Johnson, Jon Dantzig, Robert Santini
  • Patent number: 9702650
    Abstract: A method to attenuate the blast wave/blast overpressure from a weapon discharge by leaking an effective quantity of propellant gas from behind the projectile, into the precursor gas flow in front of the projectile, while the projectile is still in the weapon barrel—whereby the exit pressure ratio of the projectile from the weapon is surprisingly reduced by about 95%—resulting in a reduction of from about 51.6 to about 58.2% in the peak pressure level/sound wave which impacts the user or crew of the weapon.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: July 11, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Robert Carson, Eric L. Kathe, Robert E. Dillon
  • Patent number: 9459071
    Abstract: An open ignition breech plug for a muzzle-loading firearm. The open ignition breech plug includes an internal body portion for removable installation into the breech end of a barrel of the muzzle-loader, and an external body portion comprising a gripping surface, a nipple for receiving an ignition source such as a percussion cap, and at least one open portion of the external body portion for external visibility of the nipple and a percussion cap mounted thereon. The nipple can be integrally formed with the external body portion or removably mounted thereto.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: October 4, 2016
    Assignee: BLACKPOWDER PRODUCTS, INC.
    Inventors: Mark D. Hendricks, Kenneth L. Morgan
  • Patent number: 9446440
    Abstract: The invention relates to a method for producing a gun barrel by cold forging a cylindrical blank in a barrel hammering machine, which has a plurality of forging hammers distributed around the circumference of the blank and acting radially on the blank, wherein forging hammers having ribs parallel to the longitudinal axis of the blank are used in order to forge longitudinal grooves in the blank during the cold forging.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: September 20, 2016
    Assignee: Steyr Mannlicher GmbH
    Inventor: Michael Engesser
  • Patent number: 9366494
    Abstract: A stacked ordnance device provides a disposable and optionally non-reusable projectile weapon. A gun barrel can be formed by holding two half barrels together such that separating the halves exposes the length of the bore. Stacked ordnance devices have multiple projectiles, seals, and charges positioned sequentially in the gun barrel. A controller can electronically trigger igniters that ignite the charges and fire the projectiles. The device can have more than one gun barrel and the gun barrels can be made from plastic. Multi-barrel devices can have gun barrels arranged radially around and damped to a backbone.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: June 14, 2016
    Assignee: Falcon Industries, Inc.
    Inventor: Stephen Charles Hines
  • Publication number: 20150101231
    Abstract: The invention relates to safety components/modifications for a firearm barrel for preventing discharge of live ammunition from the firearm. The invention includes one embodiment of a modified barrel including a rod member transversely positioned within a portion of the bore of the barrel adjacent to the chamber to prevent chambering or loading of a live round. The modified barrel further includes a standard blank-firing adapter (BFA) fixedly coupled to the distal or muzzle end of the barrel.
    Type: Application
    Filed: September 23, 2014
    Publication date: April 16, 2015
    Inventors: Carol Giannini, David Tarzi, Michael Cheramie, Erik Kalnicki
  • Patent number: 8991293
    Abstract: A semi-automatic pistol is provided having a barrel, a frame and a slide. The slide is adapted for linear motion along the frame during a firing sequence and has a forward end and a block end. The forward end has an upper cam follower surface and a lower cam follower surface on the inside surface adjacent to the barrel. The barrel has a ramp cam surface adjacent to the chamber end of the barrel to effect locking and unlocking of the barrel relative to the slide during the firing sequence, a bottom cam surface and a top cam surface. The bottom cam surface and the top cam surface extend from the front end toward the chamber end of the barrel and each have undulating surfaces that moves against the lower cam follower surfaces of the slide to cause oscillation of the barrel while the slide moves during the firing sequence.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: March 31, 2015
    Assignee: Kimber IP, LLC
    Inventors: Yury Karfiol, John Goliber
  • 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: 8984793
    Abstract: A firearm is provided that includes a receiver, a stock, an elongated barrel and a muzzle. The barrel extends from the receiver to the muzzle and has a rectangular internal bore extending from the receiver to the muzzle. The internal bore has two short sides and two long sides. A plurality of teeth extends along one of the short sides within the internal bore. A disk-shaped bullet fitting within the internal bore may be fired from the firearm. A bullet case having a rectangular orifice is provided to chamber the disk-shaped bullet for propulsion through the rectangular internal bore of the firearm.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: March 24, 2015
    Inventor: Nicholas F. Mirabile
  • Patent number: 8984792
    Abstract: A firearm is provided that includes a receiver, a stock, an elongated barrel and a muzzle. The barrel extends from the receiver to the muzzle and has a rectangular internal bore extending from the receiver to the muzzle. The internal bore has two short sides and two long sides. A plurality of teeth extends along one of the short sides within the internal bore. A disk-shaped bullet fitting within the internal bore may be fired from the firearm. A bullet case having a rectangular orifice is provided to chamber the disk-shaped bullet for propulsion through the rectangular internal bore of the firearm.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: March 24, 2015
    Inventor: Nicholas F. Mirabile
  • Patent number: 8959821
    Abstract: A system for firearm barrel modification includes a firearm, a collar and an auxiliary barrel. The firearm has a barrel with holes extending inward from the first muzzle end. The barrel has rifling. The collar surrounds the barrel to serve as a securing anchor for an auxiliary barrel. A sleeve slidably engages onto the firearm from the muzzle. The sleeve contains a tubular component, serving as a barrel extension. The tubular component extends from within the sleeve to form a second muzzle at the opposite end. The mating end of the barrel extension is situated within the sleeve. It butts up against the muzzle and is aligned with the rifling of the gun. Alignment rods protrude from the mating end of the tubular component and insert into corresponding holes at the muzzle end of the firearm. A spring member attached to the sleeve sets in place over the collar.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: February 24, 2015
    Assignee: FBMS Associates, Trustee for Firearm Barrel-Modification System CRT Trust
    Inventor: S. Mill Calvert
  • Patent number: 8938903
    Abstract: To permit ease and efficiency for the extraction of spent cartridge cases from the cartridge chamber of a firearm barrel within a wide range of temperature conditions, the internal tapered surface of the body region of a cartridge chamber is prepared by establishing circumferentially spaced longitudinal straight or curved regions of the internal surface finish to create an internal cartridge chamber geometry having gradually tapered spaced longitudinally relieved linear or spiral areas having longitudinal linear or spiral lands between each of the relieved areas. The circumferentially spaced lands develop controlled impedance to rearward cartridge case movement on cartridge firing to effectively protect the bolt and extractor mechanisms of the firearm against early failure.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: January 27, 2015
    Inventor: Mark C. Larue
  • Publication number: 20140352188
    Abstract: A launcher system includes a launcher having a barrel adapted to receive a projectile and a charge of propellant and a velocity variator configured to shift relative to barrel to selectively vary a launch velocity of projectile from launcher. The velocity variator may be constituted by a collar selectively controlling the propellant gases vented out of projectile and into barrel and/or a sliding breech face behind which is an energy-absorbing plug.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 4, 2014
    Inventors: Jeffrey M. Widder, Christopher A. Perhala, James R. Rascoe
  • Patent number: 8869443
    Abstract: A composite gun barrel comprising: an inner rifled liner tube having an outer surface; and an outer sleeve made from a shape memory alloy and having an inner surface for disposition against the outer surface of the inner rifled liner tube; wherein the inner rifled liner tube is configured for guiding projectiles and the outer sleeve is configured for dampening the firing vibrations encountered by the inner rifled liner tube.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: October 28, 2014
    Assignee: ATI Properties, Inc.
    Inventor: Matthew Fonte
  • Patent number: 8857095
    Abstract: A firearm is provided that includes a receiver, a stock, an elongated barrel and a muzzle. The barrel extends from the receiver to the muzzle and has a rectangular internal bore extending from the receiver to the muzzle. The internal bore has two short sides and two long sides. A plurality of teeth extends along one of the short sides within the internal bore. The internal bore has an interior barrel surface that is a high friction surface.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: October 14, 2014
    Inventor: Nicholas F. Mirabile
  • Publication number: 20140260945
    Abstract: In various embodiments, a firearm assembly devices, systems and methods are provided. The firearm assembly can comprise a barrel and a chamber comprising a channel. The chamber may have a first length. The chamber may comprise an internal wall defining an internal cavity. The chamber can also couple to the barrel. The channel can be defined in the internal wall of the chamber. The channel may have a second length that is shorter than the first length. In various embodiments, the firearm assembly may be a component of a rotating bolt firearm. In various embodiments, internal cavity of the firearm assembly has a profile configured to receive a cartridge. The devices systems and methods described herein reduce common rotating bolt firearm failure modes by encouraging case ejection, compression, and/or contraction.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: Frank Desomma
  • Patent number: 8832983
    Abstract: A replacement slide assembly for a pistol, the slide assembly having a barrel assembly with a barrel and a firing chamber. The barrel assembly also has a guide member which is a protrusion that extends horizontally outward from the barrel assembly. The replacement slide assembly also includes a housing with an interior wall that defines a groove that receives the guide member. The guide member and the groove in the housing are located forward of a firing pin assembly also mounted within the housing. The slide assembly or any firearm also includes an adjustable sight assembly that permits interchangeability between different types of sights without requiring that the firearm be re-sighted.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: September 16, 2014
    Inventor: Alec Daniel Wolf
  • Patent number: 8776424
    Abstract: A firearm is provided that includes a receiver, a stock, an elongated barrel and a muzzle. The barrel extends from the receiver to the muzzle and has a rectangular internal bore extending from the receiver to the muzzle. The internal bore has two short sides and two long sides. A plurality of teeth extends along one of the short sides within the internal bore. A disk-shaped bullet fitting within the internal bore may be fired from the firearm. A bullet case having a rectangular orifice is provided to chamber the disk-shaped bullet for propulsion through the rectangular internal bore of the firearm.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: July 15, 2014
    Inventor: Nicholas F. Mirabile
  • Patent number: 8770179
    Abstract: A system for airborne dispersal of chemicals comprising a compressed gas gun having a gun body, a grip, a barrel, a trigger, a compressed gas source and a cylindrical collar positioned at an exit end of said barrel, having a bore therethrough and equipped with a depth-adjustable knife-edge disposed at an exit end of the collar, protruding into the bore, so as to slit a capsule containing a chemical solution or suspension upon exit from the collar and disperse the chemical solution or suspension.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: July 8, 2014
    Assignee: Pesticide Delivery Systems, Inc.
    Inventors: Robert W. Haynes, Eugene M. Maddux
  • Patent number: 8713839
    Abstract: A firearm with a barrel that uses an ammunition discharge chamber that includes improved throat located between the chamber's free bore and the rifle bore. The improved throat includes a relatively short, inward aligned first step, an intermediate elongated cylindrical body, and a longer, inward aligned second tapered step. Formed on the inside surfaces of the first step, the elongated body and the second step are rifling grooves and lands that gradually their depths and heights from rear to front direction. The two steps are tapered inward between 1.0 to 1.5 degrees. Using a short first step, an elongated cylindrical body with straight sidewalls, a longer second step with continuous grooves and lands that begin gradually in depth and height from rear to front directions, chamber pressure is reduced thereby enabling more gun powder to be used and bullet misalignment in the rifle bore is reduced.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: May 6, 2014
    Inventor: Shawn Carlock
  • Patent number: 8714146
    Abstract: A ballistic adjustment device installed in a rear end of a gun barrel of a toy gun for adjustment of the ballistic range is disclosed to include a barrel bullet attached to the rear end of the gun barrel and having two inside protruding portions for holding a bullet in balance in the rear end of the gun barrel for firing, a positioning member press-fitted onto the bullet barrel and fastened to the rear end of the gun barrel, a pressure member fastened to the gun barrel and having a spring arm partially and downwardly projecting through an opening on the positioning member into tangent contact with the bullet to be fired, and a rotary control member rotatable to adjust the pressure between the spring arm and the bullet to be fired.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: May 6, 2014
    Inventor: Shih-Che Hu
  • Publication number: 20140109454
    Abstract: A duplex weapon system that is capable of firing a high-mass/low-velocity (“HMLV”) projectile followed by a conventional projectile such as a bullet. A barrel adapter is aligned with the bore of the barrel of a conventional firearm. The barrel adapter includes an adapter bore running completely through its length, with the adapter bore terminating in an exit in the forward portion of the barrel adapter. The HMLV projectile is slidably attached to the exterior of the barrel adapter. The HMLV projectile includes a launch tube that covers the exit of the barrel adapter. When a first cartridge is fired by the firearm, expanding propellant gas rashes down the adapter bore and out the exit. The expanding gas forces the launch tube and the attached HMLV projectile away from the barrel adapter. The HMLV projectile then flies toward a target.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 24, 2014
    Inventor: William V.S. Rayner
  • Patent number: 8701325
    Abstract: A duplex weapon system that is capable of firing a high-mass/low-velocity (“HMLV”) projectile followed by a conventional projectile such as a bullet. A barrel adapter is aligned with the bore of the barrel of a conventional firearm. The barrel adapter includes an adapter bore running completely through its length, with the adapter bore terminating in an exit in the forward portion of the barrel adapter. The HMLV projectile is slidably attached to the exterior of the barrel adapter. The HMLV projectile includes a launch tube that covers the exit of the barrel adapter. When a first cartridge is fired b the firearm, expanding propellant gas rushes down the adapter bore and out the exit The expanding gas forces the launch tube and the attached HMLV projectile away from the barrel adapter. The HMLV projectile then flies toward a target.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: April 22, 2014
    Inventor: William V. S. Rayner
  • Publication number: 20140075805
    Abstract: To permit ease and efficiency for the extraction of spent cartridge cases from the cartridge chamber of a firearm barrel within a wide range of temperature conditions, the internal tapered surface of the body region of a cartridge chamber is prepared by establishing circumferentially spaced longitudinal straight or curved regions of the internal surface finish to create an internal cartridge chamber geometry having gradually tapered spaced longitudinally relieved linear or spiral areas having longitudinal linear or spiral lands between each of the relieved areas. The circumferentially spaced lands develop controlled impedance to rearward cartridge case movement on cartridge firing to effectively protect the bolt and extractor mechanisms of the firearm against early failure.
    Type: Application
    Filed: June 27, 2012
    Publication date: March 20, 2014
    Inventor: Mark C. Larue
  • Publication number: 20140033591
    Abstract: The invention relates to a device for producing a gun barrel, in which the barrel is formed from a pipe blank (1) in which barrel rifles (2) are formed against a mandrel (3) having grooves (2b) shaped as the rifles.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: CARREL INNOVATIONS OY
    Inventor: Torolf PELIN
  • Publication number: 20140020276
    Abstract: A firearm for implementing an improved 9mm cartridge is provided, wherein the improved 9mm cartridge includes a 9mm bullet associated with a 45-9 cartridge casing, wherein the 9mm bullet weights at least 90 grains and wherein the 45-9 cartridge casing is configured to contain a propellant sufficient to propel the 9mm bullet to a velocity of at least 1600 feet per second. The firearm may include a barrel, wherein the barrel is configured to operably interact with the 9mm bullet and a chamber, wherein the chamber includes at least one chamber portion sized and shaped to operably associate with the 45-9 cartridge casing and a free-bore, wherein the free-bore includes at least one free-bore portion sized and shaped to operably associate with the 9mm bullet.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 23, 2014
    Inventor: Jeffrey D. Goddard
  • Publication number: 20140007481
    Abstract: A manufacturing procedure for a “bull barrel” model with silencer and “model bull barrel” with obtained silencer.
    Type: Application
    Filed: January 17, 2011
    Publication date: January 9, 2014
    Applicant: GTAMO Outdoor, S.L.
    Inventors: Victor Tresserras Torre, Julian Arnedo Vera
  • Patent number: 8621976
    Abstract: A semi-automatic pistol is provided having a barrel, a frame and a slide. The slide is adapted for linear motion along the frame during a firing sequence and has a forward end and a block end. The forward end has an upper cam follower surface and a lower cam follower surface on the inside surface adjacent to the barrel. The barrel has a ramp cam surface adjacent to the chamber end of the barrel to effect locking and unlocking of the barrel relative to the slide during the firing sequence, a bottom cam surface and a top cam surface. The bottom cam surface and the top cam surface extend from the front end toward the chamber end of the barrel and each have undulating surfaces that moves against the lower cam follower surfaces of the slide to cause oscillation of the barrel while the slide moves during the firing sequence.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: January 7, 2014
    Assignee: Kimber IP, LLC
    Inventors: Yury Karfiol, John Goliber
  • Patent number: 8595971
    Abstract: A viscoelastic barrel dampener operable to increase the accuracy of a weapon having a shroud, the shroud defining a shroud wall and a chamber within the shroud wall, a barrel, the barrel disposed within the chamber of the shroud and defining a barrel wall having an outer surface, and a viscoelastic dampening material, the viscoelastic dampening material disposed within and substantially filling a volume defined by the outer surface of the barrel and the shroud wall, wherein the barrel further includes one or more contour features adapted to disrupt the axial propagation of acoustic energy along the barrel wall. In at least one embodiment, the one or more contour features may include a plurality of parallel barrel walls, radial grooves, or steps formed in the outer surface.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: December 3, 2013
    Inventor: Christopher David Johnson
  • Patent number: 8584391
    Abstract: A shotgun has a telescoping barrel made of concentric barrel sections slidably engaged together. These include at least an inner barrel section and an outer barrel section. A grip on the outer barrel section aids telescopic movement. A locking pin secures or releases the barrel sections. The barrel sections have protrusions that interfere with further outward movement once fully telescoped out. The grip may have a channel to permit a pistol grip to slide onto the grip. A second pistol grip may be connected to the trigger. The butt of the gun may slide out to make a shoulder rest. A butt plate is connected to a rod that slides into and out of the shotgun. The rod has teeth that engage a spring-loaded arm to secure the rod in an extended position. A compression or tension spring may bias the concentric barrel sections in an extended or shortened configuration.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: November 19, 2013
    Assignee: TTSG Associates
    Inventor: S. Mill Calvert
  • Patent number: 8516729
    Abstract: A gun that has a plurality of frangible barrels. At the proximal end of each barrel is a chamber that receives a cartridge. The cartridge has a reduced charge as compared to a conventional cartridge. Each barrel may have an inner sleeve formed from a malleable material. The out member of each barrel is comprised of a rigid material such as, but not limited to, a filled plastic. The inner sleeve is rigid enough to withstand the pressure of the reduced charge cartridge when fired, but is malleable enough to expand from the pressure generated by a standard charge cartridge. When the inner sleeve expands, the outer member fragments and destroys the weapon. The expansion of the inner sleeve and fragmentation of the outer member upon firing a standard charge reduces the propelling force in the bullet. As a result, the weapon is destroyed and the bullet is fired with a greatly reduced force. The barrels on the gun don not rotate.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: August 27, 2013
    Assignee: Brejon Holdings (BVI), Ltd.
    Inventors: John Hayes, David J. W. Lovinger
  • Publication number: 20130199071
    Abstract: A method and apparatus for providing the aesthetic effect and functional qualities of a dummy suppressor or barrel extension while providing for the possibility of further attachments or accessories to be attached to the end of the extended barrel.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Inventor: Shanyao Lee
  • Patent number: 8490308
    Abstract: A muzzle loading blackpowder firearm is disclosed having a barrel with a standard caliber bore therein. The firearm is adapted to fire a projectile having a skirted aft end of a larger initial diameter than the standard caliber bore of the firearm. The barrel has an enlarged bore at its outer end sized to receive the projectile aft end first, and a tapered transition between the enlarged bore and the standard caliber bore so that upon forcing the projectile through the enlarged bore and through the tapered transition, the tapered transition reduces the skirted aft end to the diameter of the standard bore.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: July 23, 2013
    Inventor: John J. Schneider
  • Publication number: 20130174462
    Abstract: A barrel assembly for firearms including one or more tubes associated with a mono-block, characterized in that the mono-block has one or more cylindrical protrusions which allow the connection of one or more of the tubes and the subsequent joining thereof by welding, adhesive bonding, forcing, etcetera. The method for manufacturing the barrel assembly is characterized in that it includes the steps of: providing a mono-block which includes one or more front cylindrical protrusions, one or more partial chambers axially aligned with the protrusions, and corresponding collars for the cartridge seats, extractor seats, and closure members such as closure tenons or other members; all the members are completed with their final dimensions; performing an overall heat treatment of the mono-block and of the barrels; connecting the tubes, which constitute the barrels of the firearm, by welding, adhesive bonding, forcing, etcetera, to the protrusions.
    Type: Application
    Filed: June 27, 2012
    Publication date: July 11, 2013
    Applicant: BENELLI ARMI S.P.A.
    Inventor: Luigi Moretti
  • Publication number: 20130118049
    Abstract: A unitary barrel, chamber and bolt region for a firearm is manufactured from a single piece of metal stock so as to precisely and consistently meet headspace requirements. A single piece of metal stock having a bore centerline is successively reamed based on a common datum to achieve precise headspace compliance. The unitary assembly is then profiled, again based on measurements from the datum, to provide a unitary barrel, chamber and bolt region without any form of juncture, headspace or harmonic limitations.
    Type: Application
    Filed: December 19, 2012
    Publication date: May 16, 2013
    Inventor: Karl C. Lippard
  • Publication number: 20130061503
    Abstract: Disclosed are examples of an apparatus for cooling a barrel 12 of a firearm 10 and examples of a cooled barrel assembly 32 for installation into an existing firearm 10. When assembled with the barrel 12, a contact surface 16 of a shell 14 is proximate to, and in thermal communication with, the outer surface of the barrel 18. The shell 14 is formed of commercially available or modified graphite foam.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 14, 2013
    Applicant: UT-BATTELLE, LLC
    Inventors: Klett James W., Michael P. Trammell
  • Publication number: 20130047831
    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: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: Intrepid Tactical Solutions, LLC
    Inventor: William E. DeJong
  • Patent number: 8312663
    Abstract: A harmonic barrel dampener operable to increase the accuracy of a weapon having a barrel. According to at least one embodiment, a harmonic barrel dampener comprises an outer portion that substantially encases or enwraps a significant portion of barrel, and wherein the harmonic barrel dampener further comprises at least one acoustic dampening material contained between the outer portion and a weapon's barrel, resulting in improved accuracy of projectiles fired from the weapon.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: November 20, 2012
    Inventor: Christopher David Johnson
  • Publication number: 20120279106
    Abstract: A gun that has a plurality of frangible barrels. At the proximal end of each barrel is a chamber that receives a cartridge. The cartridge has a reduced charge as compared to a conventional cartridge. Each barrel may have an inner sleeve formed from a malleable material. The out member of each barrel is comprised of a rigid material such as, but not limited to, a filled plastic. The inner sleeve is rigid enough to withstand the pressure of the reduced charge cartridge when fired, but is malleable enough to expand from the pressure generated by a standard charge cartridge. When the inner sleeve expands, the outer member fragments and destroys the weapon. The expansion of the inner sleeve and fragmentation of the outer member upon firing a standard charge reduces the propelling force in the bullet. As a result, the weapon is destroyed and the bullet is fired with a greatly reduced force. The barrels on the gun don not rotate.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 8, 2012
    Inventors: John Hayes, David J. W. Lovinger
  • Patent number: 8296987
    Abstract: A shotgun includes a first barrel having a first barrel muzzle end and a second barrel having a second barrel muzzle end. The shotgun includes an expansion joint provided adjacent the first barrel muzzle end and the second barrel muzzle end to connect together the first barrel muzzle end to the second barrel muzzle end. The expansion joint is operative to allow movement of one of the first and second barrels relative to the other one of the first and second barrels to prevent bowing thereof.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: October 30, 2012
    Assignee: Ithaca Gun Company
    Inventors: David A. Dlubak, Aaron P. Welch
  • Patent number: 8291632
    Abstract: A method of making a gun barrel having a breech end and a muzzle end and a bore extending between the two ends comprises applying to the outer surface of the bore a plurality of swaging dies (5), each of which carries an upstanding helical land (10). The dies are pressed simultaneously against the external surface of the gun barrel such that each land forms a helical recess (14) in the external surface and crystalline deformation to the material of the barrel wall immediately below the external helical recess. The distortion of the external surface results simultaneously in the creation of a plurality of smooth helical ridges (16) on the surface of the bore.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: October 23, 2012
    Assignee: Transmission Systems Limited
    Inventor: Hugh Taylor
  • Patent number: 8281698
    Abstract: An improved barrel and attachment system for rapid fire weapons having a quick release and replacement. Further the barrel is lighter than comparable barrels for the same purpose, and has a flash suppression system.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: October 9, 2012
    Inventor: Leroy E. Haywood
  • Patent number: 8261480
    Abstract: A rigid composite structure has a bore formed in a metallic material and a super hard interior segment or segments disposed within the bore. Each segment may be lined adjacent to one another and held under compression within the bore. The segments may be made of super hard materials such as natural diamond, synthetic diamond, polycrystalline diamond, single crystalline diamond, cubic boron nitrate or other superhard composite materials which exhibit low thermal expansion rates and are generally chemically inert. The resultant rigid composite structure may possess higher tolerances to high pressures and high temperatures.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: September 11, 2012
    Inventors: David R. Hall, Scott Dahlgren, Ronald Crockett, Timothy C. Duke, Joshua Sensinger, Joe Fox, Tyson J. Wilde
  • Publication number: 20120180361
    Abstract: Apparatus and methods for launching and fabricating projectiles. In some embodiments, one or more ring airfoil projectiles are launched from a gun. Yet other embodiments pertain to the launching of projectiles that disperse tracer or irritant chemicals upon impact. Yet other embodiments pertain to apparatus and methods for molding of munition components.
    Type: Application
    Filed: June 10, 2011
    Publication date: July 19, 2012
    Inventor: Kimball Rustin Scarr
  • Patent number: 8215221
    Abstract: A gun barrel with a gun barrel liner and a breech ring, which are joined with each other by a bayonet thread. A continuous cavity is left between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring that are located axially behind them or in front of them. A locking segment is inserted in at least one of the cavities that is formed in the installed gun barrel liner between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring to prevent unintentional detachment of the gun barrel liner from the breech ring. The locking segment can completely fill the corresponding cavity.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 10, 2012
    Assignee: Rheinmetall Waffe Munition GmbH
    Inventors: Klaus Lawitzke, Ralf-Joachim Herrmann, Bernhard Scheideler, Heiner Schmees
  • Publication number: 20120137558
    Abstract: Muzzle-loading rifle, which comprises a breech plug (1) and a barrel (2), both fixed in a connection area (3), characterised in that the breech plug (1) is provided with a continuous flange (11) that presses from inside against a seating surface (12) of the barrel (2) when the breech plug (1) is fitted in the interior of the barrel (2), so that said pressure increases when the powder (7) explodes on the second end (5) of the breech plug (1). As a result, the seal between the breech plug (1) and the barrel (2) is strengthened and the gunpowder is prevented from reaching the connection area (3), thereby making it easier to detach the breech plug (1).
    Type: Application
    Filed: May 20, 2009
    Publication date: June 7, 2012
    Applicant: DIKAR, S. COOP.
    Inventor: Inigo LIZARRALDE IBARGUREN
  • Patent number: 8161886
    Abstract: A sabot-retaining shotshell cartridge and firing assembly including a barrel or barrel insert for firing the sabot-retaining shotshell cartridge. The shotshell cartridge includes a cylindrical hull, a sub-caliber projectile, a propellant charge, and a sabot. A central pathway or thin membrane is defined within the base of the sabot between the sub-caliber projectile and propellant charge. The barrel or barrel insert for firing the cartridge includes a transitional area between chamber and sub-caliber rifled bore to retain sabot in the cartridge. Upon cartridge firing, propellant gases flow through central portion of sabot base propelling projectile out of the sabot and into sub-caliber rifled bore.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: April 24, 2012
    Assignee: Olin Corporation
    Inventor: Stephen W. Meyer
  • Publication number: 20120017481
    Abstract: Firearms and firearm components are constructed from bonded multi-metallic base materials comprising at least two dissimilar metallic materials having different properties, such as weight, density, wear resistance, durability, hardness, and the like, bonded to one another. The components are fabricated such that the metallic material having higher impact- and wear-resistance is positioned at areas that experience impact, or that include bearing points, wear points, and interfaces with other components, while a lighter weight metallic material is positioned at component locations that don't have rigorous material property requirements. The bonded multi-metallic materials may be explosively bonded multi-metallic materials.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 26, 2012
    Applicant: PACIFIC AEROSPACE & ELECTRONICS, INC.
    Inventors: Nelson Clare SETTLES, Shaun Michael McGUIRE
  • Patent number: 8091462
    Abstract: A locking system for a firearm attachment. The locking system having a rotating lock ring having a lock-and-release lever rotatably mounted thereto. The lock-and-release lever having a lock engagement surface optimally configured to forcefully engage a locking surface when in a locked orientation. The locking ring having a nonconcentric engagement surface that repositions in a radial direction when the locking ring rotates and the nonconcentric engagement surface is configured to engage the muzzle of a firearm for locking the muzzle attachment thereto.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: January 10, 2012
    Assignee: SureFire, LLC
    Inventors: Barry W. Dueck, Karl Honigmann