Auxiliary Patents (Class 42/77)
  • Patent number: 10436553
    Abstract: A device incorporates a light source, a power source, and a control unit. The device has two operating modes and a switch to select one of the two modes. In a first operating mode the light source has a first control function wherein it emits light and a second control function wherein it does not emit light. In a second mode the light source emits light when the sound of a gun firing pin is detected.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: October 8, 2019
    Assignee: Crimson Trace Corporation
    Inventors: Larry E. Moore, Aaron Moore
  • Patent number: 9927201
    Abstract: The invention relates to the firearm hardware, namely to barrel coupling for firearm. Due to the new muzzle adapter construction, clamping mechanism, which consists of a separator with cams and a clamping sleeve, it makes it possible to mount muzzle accessories to the barrels without any special preparation. The separator is manufactured as a casing with a plurality of cam sockets and a plurality of elongated L-shaped cams insertable into the said sockets with the longer part of the cam shaped to match the socket. The new barrel coupling is more reliable and more durable, it is comfortable and easy to install and remove.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: March 27, 2018
    Inventor: Alexander Nikolaevich Penchuk
  • Patent number: 9823031
    Abstract: A modular automatic or semiautomatic rifle. The rifle has a lower receiver assembly having a fire control assembly for firing the rifle. An upper receiver assembly is provided with a frame and a bolt carrier assembly configured for firing bullets of a predetermined caliber. The lower receiver has a mating interface configured for operably joining the lower receiver assembly to the upper receiver assembly, and for operably joining the lower receiver assembly to another upper receiver assembly different from the upper receiver assembly configured for firing bullets of the predetermined caliber. The other upper receiver assembly has a different frame and different bolt carrier assembly configured for firing bullets of a different predetermined caliber.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: November 21, 2017
    Assignee: COLT'S MANUFACTURING IP HOLDING COMPANY LLC
    Inventors: Laurance Robbins, Kevin Audibert, Kevin Langevin
  • Patent number: 9777982
    Abstract: A revolver has a shroud for housing a barrel. The shroud has a receptacle formed on an upper surface. The receptacle is aligned with one sight receiving flat on an exterior periphery of the barrel. The flat is located adjacent to the muzzle end of the barrel. A front sight is disposed within the receptacle. A bottom portion of the sight is in registration with the flat so as to prevent rotation of the barrel.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 3, 2017
    Assignee: Smith & Wesson Corp.
    Inventor: Brett Curry
  • Patent number: 9188407
    Abstract: An accessory is mountable to the side plate of a gun. The accessory may be a sighting device including a light source (preferably a laser), and a power source connectable to the light source. The side plate is positioned on the gun, which is preferably a revolver, preferably by being screwed to it. The side plate includes an attachment mechanism that is preferably located behind the trigger guard and behind the gun cylinder, wherein the accessory is attachable to the attachment mechanism.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: November 17, 2015
    Inventors: Larry E. Moore, Aaron Moore
  • Patent number: 9188404
    Abstract: This invention is a precision weapon that utilizes solely as a projectile, a precision-ball made out of a suitable material namely solid C260 brass. It employs a smoothbore precision-barrel with a metal toothed rack/rail affixed along the northern hemisphere of the muzzle of the barrel that effectively converts some of the forward motion of the ball into rotational motion so that the ball is mechanically forced to rotate upwards/backwards at very high speed that can run into millions of rotations per minute, vastly improving its ballistic coefficient and downrange accuracy. The weapon can be produced in a variety of existing types of firearms such as bolt-action, falling-block or semi-automatic, and can be chambered for a variety of calibers. A 5.5625 mm caliber bolt-action rim fire weapon for instance will provide a user with a weapon ideal for hunting small-game or for target shooting purposes. See FIGS. 1, 2 and 3.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: November 17, 2015
    Inventor: Steven Mark Camilleri
  • Patent number: 9121657
    Abstract: A maneuver cartridge device for use in a self-loading firearm includes a barrel extending from a chamber to a muzzle side and having an intercepting device arranged on the muzzle side for intercepting a projectile. The barrel has a first barrel section that adjoins the chamber and a second barrel section that adjoins the first barrel section. The first barrel section has a first cross section corresponding to a caliber of the projectile and the second barrel section has a second cross section that is larger than the first cross section.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: September 1, 2015
    Assignee: HECKLER & KOCH GMBH
    Inventors: Rudi Beckmann, Rolf Hezel
  • Publication number: 20140345180
    Abstract: An insertion tube (1) for firing sub-caliber ammunition bodies (20) using a high caliber weapon (10) is inserted into the loading chamber (11) of the weapon (10). The tube wall (2) of the insertion tube (1) has penetrating recesses (3) for compensating pressure differences between the inside of the insertion tube (1) and the loading chamber (11). A weapon includes an insertion tube (1) which can be inserted into the loading chamber (11) of the weapon (10) for firing a sub-caliber ammunition body (20), the insertion tube (1) being designed in the above-described manner.
    Type: Application
    Filed: May 22, 2012
    Publication date: November 27, 2014
    Inventors: Jens Köster, Matthias Raczek, Bernd Wagner
  • Patent number: 8875432
    Abstract: A firearm for implementing an improved 9 mm cartridge is provided, wherein the improved 9 mm cartridge includes a 9 mm bullet associated with a 45-9 cartridge casing, wherein the 9 mm bullet weights at least 90 grains and wherein the 45-9 cartridge casing is configured to contain a propellant sufficient to propel the 9 mm 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 9 mm 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 9 mm bullet.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: November 4, 2014
    Inventor: Jeffrey D. Goddard
  • 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: 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: 8826793
    Abstract: An interchangeable, modular firearm muzzle mountable system can include a first firearm muzzle mountable device and a second firearm muzzle mountable device. Each device can have an inlet end coupling feature proximate to an inlet end of a central chamber and an outlet end coupling feature proximate to an outlet of the central chamber. The central chamber can be oriented along a central axis within an outer shell and the inlet and the outlet can be configured to allow a projectile from a firearm to pass along the central axis. The inlet end coupling feature of the first device can be removably coupleable with a muzzle end of a firearm and the inlet end coupling feature of the second device can be removably coupleable with the outlet end coupling feature of the first device beyond the muzzle end of the firearm.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 9, 2014
    Assignee: O.S.S. Holdings, LLC
    Inventor: Russell Oliver
  • Patent number: 8776771
    Abstract: The present invention relates to an extension barrel, which comprises an outer tube and a dye coating module. The outer tube is provided at the rear end thereof with a connector portion adapted for connection to a front end of a pneumatic gun. The dye coating module is mounted within the outer tube, so that a bullet projected from the pneumatic gun is coated with dye having a desired color when passing through the dye coating module. As a result, the object hit by the bullet is stained with the color and can be easily identified.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: July 15, 2014
    Assignee: Green Science Laboratory Inc.
    Inventors: Shih-Horng Yang, Tien-Wei Sun
  • Patent number: 8739450
    Abstract: The present invention relates to barrel extensions for firearms that have been converted to fire different, most likely lower, caliber ammunition than the firearms were originally designed to accommodate. The present invention in several embodiments is a barrel extension designed to supplement or replace the barrels and/or barrel extensions of firearms that have a sub-caliber conversion installed. Several embodiments of the present invention are configured to be installed on AR15 family rifles with a .22LR ammunition conversion to allow for accurate shooting of the .22LR ammunition through the barrel extension.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: June 3, 2014
    Assignee: E.R. Shaw, Inc.
    Inventor: Roy Piontek
  • Patent number: 8726560
    Abstract: The present invention teaches an insert locking mechanism incorporated into a sub caliber action device, installable within an upper receiver of an AR-15 type firearm, and which interfaces with an upper receiver mounted forward assist for use with such as .22 caliber ammunition and in order to eliminate movement or play of the chamber insert adaptor associated with the substituted sub caliber action. The mechanism includes a generally cylindrical shaped body supported upon the action and exhibiting a plurality of radially projecting and circumferentially extending lugs which are configured to mate and seat within a plurality of grooves circumferentially arrayed within a barrel defined in the upper receiver.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: May 20, 2014
    Assignee: 22 Evolution LLC
    Inventors: John L. Overstreet, Charles C. Kelly, Jordan Bowles, Tyson Bradshaw, Craig Pudil, Taz B. Pfefer
  • 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: 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
  • Patent number: 8701326
    Abstract: An interchangeable barrel system and related method for a pistol includes a barrel insert having an anti-rotation protrusion and a receiver having a complementary configured socket configured for receiving the protrusion. An embodiment of a barrel insert includes a chamber for holding a cartridge and a locking mechanism configured for releasably securing the barrel insert to the receiver. In some embodiments, the locking mechanism comprises a threaded engagement between the barrel insert and receiver. The system allows barrel inserts of different calibers, configurations, and materials to be swapped with the receiver, and vice-versa.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: April 22, 2014
    Inventor: Amir Zonshine
  • Publication number: 20140075818
    Abstract: The present invention relates to barrel extensions for firearms that have been converted to fire different, most likely lower, caliber ammunition than the firearms were originally designed to accommodate. The present invention in several embodiments is a barrel extension designed to supplement or replace the barrels and/or barrel extensions of firearms that have a sub-caliber conversion installed. Several embodiments of the present invention are configured to be installed on AR15 family rifles with a .22LR ammunition conversion to allow for accurate shooting of the .22LR ammunition through the barrel extension.
    Type: Application
    Filed: January 11, 2013
    Publication date: March 20, 2014
    Applicant: E.R. Shaw, Inc.
    Inventor: E.R. Shaw, Inc.
  • 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: 8341863
    Abstract: A barrel holder for a drop-down barrel weapon with at least one tapped hole for accommodating an interchangeable barrel which ends in a ring shoulder for supporting the edge of a cartridge, wherein a first circumferential section of the ring shoulder is constructed as an axially movable cartridge extractor, and the remaining second circumferential section of the ring shoulder is formed by a separate adapter part which is inserted in modular fashion into the barrel holder.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: January 1, 2013
    Assignee: Steyr Mannlicher Holding GmbH
    Inventor: Hubert Kefer
  • Patent number: 8296989
    Abstract: A rifle barrel adapter that ensures adequate mounting overlap for muzzle mounted grenades for proper firing alignment is described, which adapter is formed of only four parts: (1) an elongated unitary body with a narrowed cylindrical front section upon which the muzzle mounted grenade is mounted, which elongated unitary body has an enlarged rear section that is mounted about the muzzle end of the rifle barrel over the flash suppressor; (2) a unitary locking mechanism to secure the elongated unitary body to the muzzle end of the rifle; (3) a bias spring to maintain the unitary locking mechanism in place, and (4) a locking pin to hold the unitary locking mechanism in place within the unitary body.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: October 30, 2012
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Anthony Hawthorne, Kenneth R. Jones, Richard A. Beckman
  • Patent number: 8250962
    Abstract: A bullet velocity enhancing rifle attachment assembly a sleeve having a first end, a second end and a perimeter wall. The sleeve has an aperture therein extending into the first end and outwardly of the second end. The aperture is defined by an inner wall including a first portion adjacent to the first end, an second portion adjacent to the second end and a central portion positioned between the first and second portions. The central portion has an toroidal shape. A coupler attached to the second end of the sleeve is releasably engageable with a gun barrel to align the aperture with the gun barrel. Pressure from a front side of a bullet traveling down the gun barrel is forced into the central portion to travel around the toroidal shape and back into the aperture toward the first portion, behind the bullet, as the bullet travels through the central portion.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: August 28, 2012
    Inventors: Isaac Guenther, Tina Guenther
  • 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
  • Patent number: 8104394
    Abstract: Flash suppressors having novel expansion features are disclosed. In one embodiment, a suppressor includes an attachment portion adapted to attach to a gun barrel, and a suppressor portion coupled to the attachment portion. The suppressor portion has a suppressor bore that is adapted to be aligned with a longitudinal axis of the gun barrel to allow a projectile from the gun barrel to pass therethrough. The suppressor bore is defined by at least one bore surface having at least one expansion groove disposed therein. The expansion groove may be partially-circumferentially disposed about the suppressor bore, or may include a plurality of expansion grooves. In another embodiment, a flash apparatus includes a suppressor portion having a plurality of longitudinally elongated members spaced apart about a circumference of the suppressor bore, each member being separated from adjacent elongated members by a longitudinal slot, at least one longitudinal slot having non-parallel sidewalls.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: January 31, 2012
    Assignee: B. E. Meyers
    Inventor: Brad E. Meyers
  • Patent number: 8099896
    Abstract: A rifle with a replaceable barrel with two or more barrels for different purposes and calibers and with own magazines for different cartridges. At least one barrel (1) has the cavity (2), into which a projection or upper edge (4) in the cartridge magazine (3) corresponding to the barrel fits, when the right magazine has been inserted into the rifle.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: January 24, 2012
    Assignee: Sako Oy
    Inventors: Henry Paasikivi, Juha Aalto
  • Patent number: 7987624
    Abstract: A substantially noiseless firearm and ammunition therefor, in which the projectile of the ammunition is attached to the front end of a sabot which fills the cross-sectional area of the barrel and is fired with the projectile. The barrel is provided with lands designed to catch the sabot at the front end of the barrel in such manner that the barrel is sealed off in a gas-proof fashion by the sabot.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: August 2, 2011
    Inventors: Tilo Möller, Rudolf Brandl, Alex Seidel
  • Patent number: 7966760
    Abstract: The present invention is a modular stock system for rifles. The system replaces the rifle's buffer tube with a modified one containing a mount for a constant cheek weld and a rail track for adjustment. A stock module then mounts on the replacement buffer tube. The stock module is interchangeable depending on the user's needs. Various configurations of the stock module are discussed, including adjustable stocks, fixed stocks, and specialized stocks. The stock module may be made even further modular by the addition of rail system.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: June 28, 2011
    Inventors: Richard Mark Fitzpatrick, Stephen Charles Hines
  • Patent number: 7870815
    Abstract: A gun flash hider, formed to include a first expansion chamber, a first flow divider, a plurality of first exhaust passages, an exhaust head, a second expansion chamber, a plurality of second exhaust passages and a second flow divider, whereby high-temperature high-pressure gas produced after firing a bullet undergoes two expansion decompressions and two flow diversion decompressions, through which the gas is sequentially discharged from the first exhaust passages and the second exhaust passages, thereby substantially reducing sonic boom volume, amount of flame and recoil force produced when firing the bullet, and increasing stability and shooting accuracy when using a gun.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: January 18, 2011
    Assignee: Troika International Co., Ltd.
    Inventor: Yi-Hsien Hung
  • Publication number: 20100281744
    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: Application
    Filed: November 11, 2008
    Publication date: November 11, 2010
    Inventor: Stephen W. Meyer
  • Patent number: 7797872
    Abstract: A display clamp, and related method, are disclosed for removably attaching a second, interchangeable barrel to a fully assembled long gun (i.e., a shotgun or rifle) for display purposes only, wherein the extra barrel's gas cylinder or lug is suspended from the long gun's magazine tube, and held in place by the shotgun's/rifle's removable magazine cap. The method and apparatus allow a retail store (or buyer) to display the firearm and extra barrel as a combination unit either vertically or horizontally oriented within display cases.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: September 21, 2010
    Assignee: O.F. Mossberg & Sons, Inc.
    Inventor: Thomas Lynch
  • Patent number: 7753679
    Abstract: A non-firing rifle that emulates a semi-automatic or automatic rifle for training in procedures for safe handling, cleaning, and field stripping of such weapons. The non-firing rifle retains the upper receiver assembly, barrel assembly, and ammunition magazine of the emulated rifle, as well as some of the components of the lower receiver assembly of the emulated rifle, but substitutes a modified forging for the lower receiver forging of the emulated rifle. Unlike the lower receiver forging of the emulated rifle, the modified forging has no cutouts to allow a trigger or hammer to be installed. A cutout is provided in a bottom wall of the forging, however, to allow installation of a pseudo-trigger. Accordingly, it is incapable of firing a live ammunition round.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 13, 2010
    Inventor: Brian D. Schuetz
  • Patent number: 7735409
    Abstract: A conversion kit and method for converting the RUGER® 10/22® semi-automatic .22 caliber rim fire rifle to shoot .17 HM 2 cartridges utilizes the original bolt in the receiver and replaces the bolt operating handle with increased weight to replace the original bolt handle along with a .17 caliber barrel to permit the modified rifle to safely fire, eject and reload the .17 caliber cartridges.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: June 15, 2010
    Assignee: Magnum Research, Inc.
    Inventor: James A. Tertin
  • Patent number: 7658138
    Abstract: Practice barrels for use with practice cartridges are described herein. An example practice device for use with self-loading grenade launchers includes a practice barrel having a practice cartridge chamber to receive a practice cartridge. A live cartridge does not correspond to the practice cartridge chamber. Additionally, the live cartridge is unable to be properly positioned within the practice barrel to prevent ignition of the live cartridge. Further, the practice cartridge chamber is cushioned to substantially absorb a breech energy to substantially prevent damage to the practice barrel.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: February 9, 2010
    Assignee: Heckler & Koch GmbH
    Inventors: Ernst Wössner, Rudi Beckmann
  • Patent number: 7658186
    Abstract: A multi-purposes mechanism for shooting apparatus includes a gun body, a barrel, a shooting member, and a rear cap. The gun body comprises a hollow tube perpendicularly interconnecting with a first loading hole at a center portion of the hollow tube. A first stage is formed on an inner wall of the tube in front of the first loading hole. A second stage is formed on the inner wall of the tube in back of the first loading hole. The barrel is disposed in the tube before the first loading hole, and has a first engaging ring corresponding to the first stage of the tube. The shooting member is disposed in the tube after the first loading hole, and has a second engaging ring on an outer wall thereof corresponding to the second stage of the tube. The rear cap is connected to a rear end of the tube.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: February 9, 2010
    Assignee: Sunworld Industrial Co., Ltd.
    Inventor: Hsin-Cheng Yeh
  • Patent number: 7631453
    Abstract: A semi-automatic rifle kit comprises a receiver; first and second bolt assemblies that can be interchangeably inserted inside the receiver when no barrel is coupled to the receiver; and first and second barrels that can be interchangeably coupled to the receiver when no bolt assembly is inserted inside the receiver. The first bolt assembly can be inserted inside the receiver when the first barrel is coupled to the receiver, but not when the second barrel is coupled to the receiver. The second bolt assembly can be inserted inside the receiver when the second barrel is coupled to the receiver, but not when the first barrel is coupled to the receiver. The first bolt assembly and the first barrel are designed for use with a first type of cartridge, but not a second type of cartridge. The second bolt assembly and the second barrel being are designed for use with the second type of cartridge, but not the first type of cartridge.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: December 15, 2009
    Inventor: Dino C. Longueira
  • Patent number: 7562478
    Abstract: A pistol has a forwardly extending cylindrical shaft with a cylindrical bearing surface. A rotatable cylinder is mounted on the bearing surface. A cylindrical chamber in the rotatable cylinder receives a cartridge. A firing pin ring with a firing pin aligned with the chamber is mounted on the bearing surface. A hammer safety lock includes a hole in the firing pin ring with a rearwardly extending pin. A barrel receives the cylindrical shaft. A barrel sleeve is positioned between the barrel and the shaft. A cartridge extraction tool is operable after axial sliding and separation between the cylinder and the cylindrical shaft. The cartridge extraction tool is adapted to be inserted into the chamber of the cylinder from the end remote from the firing pin ring to remove a cartridge.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: July 21, 2009
    Inventor: Laszlo Vastag
  • Publication number: 20090133310
    Abstract: Practice barrels for use with practice cartridges are described herein. An example practice device for use with self-loading grenade launchers includes a practice barrel having a practice cartridge chamber to receive a practice cartridge. A live cartridge does not correspond to the practice cartridge chamber. Additionally, the live cartridge is unable to be properly positioned within the practice barrel to prevent ignition of the live cartridge. Further, the practice cartridge chamber is cushioned to substantially absorb a breech energy to substantially prevent damage to the practice barrel.
    Type: Application
    Filed: October 22, 2008
    Publication date: May 28, 2009
    Inventors: Ernst Wossner, Rudi Beckmann
  • Patent number: 7467490
    Abstract: A display clamp assembly, and a related method, are disclosed for removably attaching a second barrel to a shotgun for display purposes, allowing a retail store (or a buyer) to display the firearm as a combination unit in a display case. The extra barrel is attached onto and substantially parallel to the barrel of the fully assembled shotgun. In the preferred embodiment, the display clamp is longitudinally split into two halves. The two halves are mirror images that can be bolted together, along their midsections. When joined, the two halves form collars on opposite ends. One collar is designed to snugly fit around the barrel of an assembled shotgun. The second collar has flared ends that guide the second barrel into the clamp.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: December 23, 2008
    Assignee: O.F. Mossberg & Sons, Inc.
    Inventors: Alan I. Mossberg, Vincent Juchniewicz
  • Patent number: 7444775
    Abstract: A system that converts an original equipment (OEM) AR-15 rifle to a rifle capable of firing cartridges of at least two different calibers. Two or more barrel liners are provided for cartridges of differing calibers. Each liner is insertable through a rear opening of an upper receiver portion of the rifle and into a smooth bore barrel of a modified barrel assembly. Each liner comprises a tube portion having a longitudinal bore and a head portion with an opening that communicates with said bore. An adapter bolt carrier assembly is substituted for the OEM AR-15 bolt carrier assembly. The substituted assembly includes a bolt that carries the firing pin and is slidably mounted on a rail guide. A front end of the rail guide has a tongue extension with a slot that receives a pin attached to a rear end of a liner head. A support rail is fixed to a rear end of the rail guide. A spring extends from the support rail to the bolt, thereby pressing the bolt against the liner head.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: November 4, 2008
    Inventor: Robert C. E. Schuetz
  • Patent number: 7421934
    Abstract: A training mortar apparatus includes a small mortar tube and a large mortar tube, the small mortar tube being disposed in the large mortar tube; a removable base cap attached to one end of the small mortar tube; a plug inserted in the removable base cap; a removable firing pin inserted in the plug; a second base cap attached to one end of the large mortar tube; and at least one opening in the large mortar tube, the opening being axially aligned with the removable firing pin of the small mortar tube. Improved manufacturing methods are also disclosed.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: September 9, 2008
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: KarolAnne Madulka, Richard Becker, George E. Hathaway, IV, Mark Witherell, Steve Tauscher
  • Publication number: 20080202009
    Abstract: A training cartridge (5) and gun barrel insert (1) assembly, wherein: a) the training cartridge (5) comprises a sleeve (17) shaped and configured to fit the breech of a gun and which holds a primer (21) and bullet (20) assembly; the assembly being located at the rear portion of the cartridge (5); a channel (22) extending forward from the bullet (20) and a recessed front channel portion (4) for receiving the sub-calibre barrel portion (3) of a corresponding gun barrel insert (1); and b) the corresponding gun barrel insert (1) comprises a sleeve (2) shaped and configured to fit at least in part into the barrel (10) of a gun; the sleeve (2) being located around a sub-calibre barrel (3); wherein the sub-calibre barrel (3) extends rearward beyond the sleeve (2) in order to project into the recessed front channel portion (4) of the corresponding training cartridge (5) .
    Type: Application
    Filed: May 8, 2006
    Publication date: August 28, 2008
    Applicant: UTM IP Limited
    Inventor: Michael Ernest Saxby
  • Patent number: 7380363
    Abstract: A blank firing barrel for use with handguns is disclosed. The blank firing barrel is sized to be substituted for an existing live-ammunition firing barrel in a handgun. The blank firing barrel can be machined from a solid block of metal such as stainless steel so that the barrel end is a contiguous portion of the original solid metal block. A downwardly angled small pressure release hole can be drilled into the closed end so that gasses from firing the blank can be safely discharged. The open end of the blank firing barrel can be sized to only accept ammunition being smaller in diameter than regular ammunition that is used for the handgun. The under rear edges of the blank firing barrel can be angled so that said barrel safely recoils within the handgun when it is fired.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: June 3, 2008
    Inventor: Neal A. Kirschner
  • Patent number: 7380488
    Abstract: A firing adapter for a combination gas and recoil operated weapon includes a blank firing barrel attached to the weapon; a piston having a barrel end and an anchor end, the barrel end being reciprocably disposed in the blank firing barrel and the anchor end being fixed to a non-recoil surface; and a gas port formed in the blank firing barrel wherein in a rest position of the weapon, the barrel end of the piston closes the gas port, and in a recoil position of the weapon, the barrel end of the piston opens the gas port.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: June 3, 2008
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: David C. C. Mao, Frank Dindl
  • Publication number: 20080098922
    Abstract: The present invention (2) is a small arms caliber and/or power reducing device for using a primer (18) to fire a projectile (21) and thence directionally guide the trajectory of said projectile from a firearm (1) the barrel bore of which may be substantially larger than the caliber of said projectile. The present invention may be adapted by selecting appropriate external dimensions, internal dimensions and form factors to enable its use with any existing breech loading small arm chambered for center-fire cartridge ammunition. The present invention may be constructed of two parts: 1) An adapter sleeve (10), and 2) a chamber (14), and intended to be re-loadable for multiple uses. Alternatively, the present invention may be configured as a single piece, fabricated with a primer and a projectile disposed therein, and intended to be used one time and discarded. Suitable primers may include Standard Small Rifle or Small Pistol Primers, Standard Large Rifle or Large Pistol Primers, or Standard 209A Shotgun Primers.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventor: Michael Lee Gleue
  • Publication number: 20080052977
    Abstract: A barrel assembly for insertion into a parent barrel of a gun wherein said barrel assembly has a plurality of projectiles axially disposed within at least one barrel of said barrel assembly and associated with discrete selectively ignitable propellant charges for propelling the projectiles from said at least one barrel wherein said barrel assembly includes a parent barrel engaging means. The barrel is suitably provided in a removable rear barrel section having engagement means for operatively aligning the rear barrel section with a forward barrel extension. Spare rear barrel sections may be stored in a stock of the gun and automatically fed into alignment upon exhaustion of the projectiles in the barrel.
    Type: Application
    Filed: April 11, 2006
    Publication date: March 6, 2008
    Inventors: James Michael O'Dwyer, Ramon John Bambach
  • Patent number: 7316093
    Abstract: The firearm and munitions kit is a cartridge and a barrel insert for a firearm adapted to fire munitions comprising a 223 round. The cartridge has an axis, a neck, a shoulder, a body, an extraction groove, and a slight frustoconical shape extending axially from the widest body diameter to the beginning of the shoulder. The barrel insert is appropriately chambered and provided for operability with the cartridge and round. A chamber of the barrel insert has an axis, a neck bore, a shoulder bore, and a body bore. The shoulder and the shoulder bore are formed at an angle of approximately 29°, ±0.5° with respect to the axis of the chamber. Upon firing a firearm equipped with the barrel insert and munitions of the present invention, the round is capable of reaching a minimum velocity of greater than 2,000 fps.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: January 8, 2008
    Inventor: Paul E. Kightlinger
  • Patent number: 7302774
    Abstract: Flash suppressors having novel expansion features are disclosed. In one embodiment, a suppressor apparatus includes an attachment portion adapted to attach to a gun barrel, and a suppressor portion coupled to the attachment portion. The suppressor portion has a suppressor bore therethrough that is adapted to be aligned with a longitudinal axis of the gun barrel to allow a projectile from the gun barrel to pass therethrough. The suppressor bore is defined by at least one bore surface having at least one expansion groove disposed therein. The expansion groove may be partially-circumferentially disposed about the suppressor bore, or may include a plurality of expansion grooves. In another embodiment, a flash apparatus includes a suppressor portion having a plurality of longitudinally elongated members spaced apart about a circumference of the suppressor bore, each elongated member being separated from adjacent elongated members by a longitudinal slot, at least one longitudinal slot having non-parallel sidewalls.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: December 4, 2007
    Inventor: Brad E. Meyers
  • Patent number: 7302881
    Abstract: A conversion kit and method for converting the RUGER® 10/22® semi-automatic .22 caliber rim fire rifle to shoot .17 HM 2 cartridges utilizes the original bolt in the receiver and replaces the bolt operating handle with increased weight to replace the original bolt handle along with a .17 caliber barrel to permit the modified rifle to safely fire, eject and reload the .17 caliber cartridges.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: December 4, 2007
    Assignee: Magnum Research, Inc.
    Inventor: James A. Tertin
  • Patent number: 7207273
    Abstract: A buckshot round for use in large, smooth-barreled weapons, such as an M203 or M79 grenade launcher, wherein the round itself acts as the firing barrel. In particular, a lethal buckshot round is provided, wherein an inner metal cylinder (barrel portion) is encased in an outer jacket, and a shot wad is contained in the inner metal cylinder, such that the inner metal cylinder acts as a barrel for firing of the buckshot from the smooth-barreled weapon. The barrel portion of the buckshot round acts as the firing barrel, and prevents contact of the buckshot with the weapon barrel during firing, thereby providing an accurate firing pattern and preventing damage to the weapon barrel.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: April 24, 2007
    Inventor: Michael Brunn