Class / Patent application number | Description | Number of patent applications / Date published |
042760010 | BARRELS | 68 |
20080229643 | PROJECTILE AND METHOD FOR SEALING A PROJECTILE IN A BARREL | 09-25-2008 |
20090282719 | Barrel Assembly And Projectile For Use With The Same - A barrel assembly for a weapon, said barrel assembly including a barrel; a plurality of projectile assemblies axially disposed in end to end abutting relationship within said barrel for operative sealing engagement with the bore of the barrel, each projectile including a projectile head and an integral cylindrical spacer portion extending axially and rearwardly from said projectile head; discrete propellant charges accommodated within said cylindrical spacer portion for propelling respective projectile assemblies sequentially through the muzzle of the barrel; ignition means for igniting said discrete propellant charges; and control means for selectively and sequentially actuating the ignition means. In one form, each projectile assembly further includes an internal wedging surface, at or adjacent the trailing end of said cylindrical extension which accommodates a tapered nose part of a following projectile, for expanding said trailing end into enhanced sealing engagement with the barrel upon engagement of said wedging surface With said tapered nose part. | 11-19-2009 |
20100192445 | GUN BARREL FOR FIRING SPIN-STABILIZED PROJECTILES - A gun barrel for locking spin-stabilized projectiles using a driving band and a sealing ring disposed behind the driving band, the gun barrel comprising a breach area, a rifled barrel part, and a transitional cone disposed between the breach area and the rifled barrel part. In order to achieve a reliable initial seal between the projectile and the profile of the rifled barrel part against hot propulsion charge gases, a smooth barrel section is disposed between the transitional cone connected to the breach area and the rifled barrel part, wherein the interior diameter of the smooth barrel section is greater than or equal to the exterior diameter of the driving band, but is approximately equal to the exterior diameter of the sealing ring, wherein the length of the smooth barrel section corresponds to at least the lengths of the driving band and the sealing ring of the projectile. | 08-05-2010 |
20100223831 | Firearm - 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. | 09-09-2010 |
20100275491 | Blank firing barrels for semiautomatic pistols and method of repetitive blank fire - The present invention embodiments provide a barrel component with the forward under-portion of the barrel configured in various manners. For example, the configurations may include an upward displacement, or angular or radial contouring, of barrel material at the forward underside of a barrel component understation or projection. These configurations provide clearance to allow the barrel to bypass frame-mounted impediments to blank-fire, and permit proper timing and coordination of rearward barrel motion under impact of the recoiling slide and the resultant barrel drop into recoil position without interference with, or re-capture by, the reciprocating slide component. In addition, the blank-fire barrel may be configured to incorporate a laser device for marksmanship training and conducting realistic tactical training exercises. | 11-04-2010 |
20110289813 | Multi-caliber conversion kits for semi-automatic pistols - A multi-caliber modular center fire line of conversion kits adaptable to pistols such as the Colt Government Model Pistol or new semi-automatic handguns. Said kits consist of complete slide assemblies using interchangeable components adapted to different sizes of ammunition. All barrels in the kits have external dimensions identical to those of the largest caliber one in order to have the primer of a loaded cartridge, whatever its caliber, automatically centered in front of the firing pin hole on the breech inside a locked pistol. When installed on semi-automatic pistol frames, kits function exactly like the original handgun. | 12-01-2011 |
20120180361 | MULTIFIRE LESS LETHAL MUNITIONS - 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. | 07-19-2012 |
20130061503 | COOLING OF WEAPONS WITH GRAPHITE FOAM - Disclosed are examples of an apparatus for cooling a barrel | 03-14-2013 |
20130199071 | Dummy Suppressor Providing for Additional Accessories - 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. | 08-08-2013 |
20140020276 | FIREARM - 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. | 01-23-2014 |
20140109454 | DUPLEX WEAPON SYSTEM - 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. | 04-24-2014 |
20150101231 | LIVE-ROUND PREVENTION WITH BUILT-IN BLANK FIRING ADAPTER - 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. | 04-16-2015 |
20150316342 | BARREL SLEEVE ASSEMBLY - The present invention relates to a barrel sleeve assembly for a rifle. The barrel sleeve assembly includes a rifle barrel and a sleeve. The rifle barrel has a portion that has been turned down from standard sizes. The sleeve is fitted over the turned down portion of the rifle barrel. | 11-05-2015 |
20160033226 | BARREL EXTENSION FOR FIREARM - A firearm with barrel extension comprises a receiver, a barrel supported by the receiver that defines an ammunition shell chamber, and a rotatable locking bolt having radial bolt lugs. The bolt is carried by a slide disposed in the receiver for forward and rearward movement. A barrel extension is mounted on a rear end of the barrel which includes radial bolt locking lugs that rotatably engage the bolt lugs when the bolt is in a closed locked breech position in battery with the head of a chambered shell. The barrel extension includes a rear facing annular rim seating surface formed integrally on the barrel extension as a unitary structural part thereof. The rim seating surface extends radially inwards from an interior surface of the barrel extension to engage and support the rear rim of the chambered shell. The headspacing is defined entirely by the barrel extension independently of the barrel. | 02-04-2016 |
20160069631 | LIVE-ROUND PREVENTION WITH BUILT-IN BLANK FIRING ADAPTER - 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. | 03-10-2016 |
20160097609 | BARREL COUPLING FOR FIREARM - 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. | 04-07-2016 |
20160102935 | QUICK CONNECT FOR PISTOL SUPPRESSOR - A quick connect for a pistol suppressor includes a housing having a first end, a second end, and a central bore with an upper portion, a lower portion, and an internal shoulder separating the upper and lower portions. A piston is within the central bore of the housing. The piston includes a piston shoulder that creates an upper recess within a central bore of the piston. A ring connected to the second end of the piston is positioned between the housing and the piston and a spring is positioned around an exterior of the piston. A wave spring is positioned in the upper recess of the piston adjacent the piston shoulder and a washer is positioned within the upper recess of the piston. A cap with a central opening and an internal locking profile is connected to the piston with the wave spring biasing the washer towards the locking profile. | 04-14-2016 |
042760020 | Materials or coatings | 5 |
20100132241 | Method for accurizing a firearm - The present invention relates to an improved method of decreasing barrel resonance of a firearm upon firing, which greatly increases the accuracy thereof, produces tighter groupings, and reduces flash, report, and recoil. In order to achieve improved firearm accuracy, the firearm barrel is coated with a sound barrel resonance dampening material in the form of a tough, energy absorbing elastomeric coating. | 06-03-2010 |
20110162246 | COMPOSITE FIREARM BARREL REINFORCEMENT - A chamber reinforcement for composite firearm barrel and method for forming the same. In one embodiment, the barrel includes an inner tube defining a bore that provides a bullet path and an outer sleeve preferably made of a material lighter in weight than the tube. In some embodiments, the inner tube is made of a material that preferably has a greater density and strength than the outer sleeve. The reinforcement in one embodiment may be in the form of an end cap disposed on a portion of the sleeve. The reinforcement preferably is made of a material comparable to the inner tube in density and strength to reinforce the area where a chamber is formed for receiving a cartridge. In the preferred fabrication, the reinforcement, tube, and sleeve are forged together to provide a strong and unitary structure for withstanding combustion pressures and forces associated with discharging the firearm. | 07-07-2011 |
20110296730 | Rigid Composite Structure with a Superhard Interior Surface - A rigid composite structure has a first bore formed in a metallic material and a second bore formed by a super hard interior segment or segments disposed within the first bore. Each segment may be lined adjacent to one another and held under compression within the first 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 within the second bore. | 12-08-2011 |
20120131836 | ENHANCED LIFE BARREL - A firearm having a stock and an enhanced life barrel attached to the stock. The enhanced life barrel has a tapered bore and either parabolic or 5R rifling. The barrel includes a chamber and a throat. Each of the tapered bore, the chamber, and the throat are lapped and polished to a finish of about 15Ra of better. The enhanced life barrel includes a ferritic nitrocarburizing finish of greater than about 0.0003 inches thick. | 05-31-2012 |
20130255127 | WEAPON BARREL AND METHOD OF MAKING SAME - An improved barrel for use in a weapon includes a housing which is cast as one piece of a directionally solidified superalloy which is free of generally spherical, randomly oriented crystals. The housing has first properties in a direction extending parallel to its central axis and properties which are different than the first properties in a direction transverse to the central axis of the housing. The superalloy forming the housing may be directionally solidified with a columnar grain crystallographic structure. Alternatively, the superalloy of the housing may be directionally solidified with a plurality of single crystal sections, one or more of which extend between opposite end portions of the housing. As another alternative, the superalloy may be directionally solidified as a single crystal which extends between opposite end portions of the housing. | 10-03-2013 |
042077000 | Auxiliary | 5 |
20080202009 | Training Cartridge, Gun Barrel Insert & Assembly - A training cartridge ( | 08-28-2008 |
20090133310 | PRACTICE BARRELS FOR USE WITH PRACTICE CARTRIDGES - 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. | 05-28-2009 |
20100281744 | SHORT MAGNUM SHOTSHELL CARTRIDGE AND FIRING ASSEMBLY - 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. | 11-11-2010 |
20140075818 | BARREL EXTENSION - 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. | 03-20-2014 |
20140345180 | Insertion Tube for Firing Sub-Caliber Ammunition Bodies and Weapon Comprising an Insertion Tube - An insertion tube ( | 11-27-2014 |
042078000 | Rifling or lining | 16 |
20110173864 | SEGMENTED COMPOSITE BARREL FOR WEAPON - A rifle barrel for a gas-operated rifle includes a metallic liner with a longitudinal bore and a transverse gas port through the liner to the bore intermediate along a length of the liner. A thermally conductive sleeve circumscribes the liner substantially along the length of the liner. A composite wrap circumscribes the sleeve substantially along a length of the sleeve. The composite wrap is separated from the gas port. | 07-21-2011 |
20110265365 | PRE-STRESSED BORE BARREL AND RELATED MANUFACTURING METHOD - Allows the reduction in the loss of precision of a discharge caused by the progressive heating-up of the barrel during a long succession of discharges, comprising at least: an interior rifled gunbore ( | 11-03-2011 |
20120117846 | Firearm Throat and Rifling Method - 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 tapered step, an intermediate elongated cylindrical body, and a longer, inward aligned second tapered step. Formed on the inside surfaces of the first tapered step, the elongated body and the second tapered step are rifling grooves and lands that gradually their depths and heights from rear to front direction. The two tapered beveled steps are aligned inward between 1.0 to 1.5 degrees. Using a short first tapered step, an elongated cylindrical body with straight sidewalls, a longer second tapered 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. | 05-17-2012 |
20120180362 | Gun barrel rifling - The present invention relates to polygonal rifling of a gun barrel to provide grooves and bores in the gun barrel separated by a flat area which tapers from the bore to the groove. There is an angle from the center of the bore to the corner of the flat area, that is, where the flat area meets the bore. The angle is predetermined by the bore dimensions. | 07-19-2012 |
20120192475 | Rifling Angle Calculating Method - A rifling angle calculating method according to the present invention expands a rifling angle by combining a Fourier function and a polynomial function to take only the advantages of the two functions, and thus boundary conditions at the start and end points of the rifling angle may be faithfully satisfied, and an optimum rifling angle for minimizing the maximum rifling force may be calculated. | 08-02-2012 |
20120227302 | COMPOSITE GUN BARREL WITH OUTER SLEEVE MADE FROM SHAPE MEMORY ALLOY TO DAMPEN FIRING VIBRATIONS - A composite gun barrel comprising: | 09-13-2012 |
20120272558 | Barrel - An improved barrel includes a first hollow portion having a preferred rectilinear extension direction and an inner surface defining a bore adapted to be travelled over by a projectile, the first hollow portion including an inner layer constituting the inner surface obtained through deposition of diamondoids by a high-vacuum process. | 11-01-2012 |
20130055612 | Stress Induced Crystallographic Phase Transformation and Texturing in Tubular Products Made of Cobalt and Cobalt Alloys - A method of producing a superalloy gun barrel includes providing a tubular workpiece made of a cobalt-based superalloy material, the workpiece having at least about 30% by weight of fcc phase and having an inner diameter and an outer diameter. The method further includes placing the workpiece on a mandrel such that the inner diameter is adjacent to the mandrel and compressing the outer diameter of the workpiece at a temperature below a recrystallization temperature of the workpiece using a combination of axial and radial forces so that the mandrel contacts the inner diameter and imparts a compressive hoop stress to the inner diameter of the workpiece. | 03-07-2013 |
20130239451 | Marking of the barrel of a firearm - The invention concerns a marking for the barrel of a firearm, in particular of a pistol, a rifle, or a carbine, with a barrel cross section the perimeter of which alternately consists of linear, polygonal segments and arched segments, where necessary with transitions between them, whereby the linear, polygonal segments define an inscribed circle, further comprising at least two ribs being provided in or on the arched segments which extend radially inward. | 09-19-2013 |
20140150319 | DISK-SHAPED BULLET, BULLET CASE AND FIREARM WITH RECTANGULAR BARREL FOR DISK-SHAPED BULLET - 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 titling within the internal bore may be tired 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. | 06-05-2014 |
20140150320 | Gun barrel rifling - The present invention relates to rifling of a gun barrel to provide grooves and bores in the gun barrel separated by a single edge area and a polygonal area. | 06-05-2014 |
20140237879 | Firearm with Rectangular Barrel Having Non-smooth Interior Surface - 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. | 08-28-2014 |
20140352192 | Uniform Rectilinear Gun - This invention is a precision weapon that utilises 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 it's 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 rimfire weapon for instance will provide a user with a weapon ideal for hunting small-game or for target shooting purposes. | 12-04-2014 |
20150007479 | Firearm Rifling - An improve firearm rifling is provided in which the trailing edge face of the land is significantly longer than the rifling land top surface. The trailing edge angle between the trailing edge face and the level of the groove floor surface is a much smaller angle than conventional rifling land trailing edge angle, while the leading edge angle of the disclosed embodiments may be akin to a conventional rifling leading edge angle. Due to this, the present embodiments provide a rifling land profile that is nonsymmetrical, with the trailing edge face being at a much lower angle than the leading edge face which is configured in a more upright orientation. | 01-08-2015 |
20160131451 | Gun Barrel Rifling - The present invention relates to rifling of a gun barrel to provide grooves and bores in the gun barrel separated by a single edge area and a polygonal area. | 05-12-2016 |
20160153733 | MULTI-CALIBER WEAPON | 06-02-2016 |
042079000 | Choke devices | 10 |
20100050493 | EXCHANGEABLE CHOKE FOR A FIRE ARM WITH A SMOOTH GUN BARREL - Exchangeable choke for a fire arm with a smooth gun barrel, whereby said choke is provided with mechanical coupling means to mount and dismount the choke, characterized in that the choke is equipped with additional sealing means so as to seal the choke, at least in one place, in relation to the gun barrel, as well as to prevent the choke from being unscrewed during the shooting. | 03-04-2010 |
20100275492 | INTERCHANGEABLE SCREW CHOKE AND COMPENSATOR FOR SHOTGUNS - An apparatus for use with a shotgun that includes an assembly having an interchangeable choke and compensator, and a lock nut for securing the compensator in a selected alignment with the choke. The current invention allows for shotguns, chokes, and compensators to be used interchangeably while still maintaining the correct positioning of each part relative to the others. | 11-04-2010 |
20110067284 | PORTING FEATURE FOR FIREARM - A choke for use with a shotgun is provided. In accordance with one embodiment the choke has a body that defines a bore with a longitudinal axis therethrough. The body is configured for engagement with a shotgun, and the bore is positioned for traversal of a wad and shot therethrough and out of an end of the bore. The body has a circumference, an inner surface, and outer surface. The body defines at least one port for venting gas from the bore that extends from the inner surface to the outer surface. The shape of the port at the inner surface is asymmetrical. | 03-24-2011 |
20110119983 | Aluminum choke tube for a shotgun - This invention is in relation to a shotgun choke tube made of Aluminum in which sometimes this Aluminum choke tube may be coated with an anodize or hard coat of some sort to increase hardness, strength and lubricity. It is composed of a cylindrical tube having a sealing face, multiple clearance diameters, a body, outside diameter threads and on extended type choke tubes, a head diameter which extends outward lengthwise to extend beyond the muzzle face of the barrel of the shotgun. The inside diameters are comprised of different surface finishes, tapers, straights and geometries. The aluminum choke tube is held in place inside the muzzle end of a shotgun barrel by the threads and sealing face which depending on the shotgun manufacturer is machined to fit that specific shotgun barrel. | 05-26-2011 |
20110289814 | Lucky Weasel Shotgun Choke - A choke to be used with a muzzle of a gun may include a housing which may include an inner surface and an outer surface, and the housing may include a substantially central bore. The inner surface may inwardly taper at the distal end of the choke, and the inner surface may include a first depression having a first dimension. The inner surface may include a second depression having a second dimension, and the inner surface may include a third depression having a third dimension. The inner surface may include a fourth depression having a fourth dimension, and the first dimension may be substantially equal to the third dimension. The second dimension may be substantially equal to the fourth dimension. | 12-01-2011 |
20120011757 | SHOTGUN GAS EXCHANGER - A shotgun gas exchanger comprising a gas exchanger tube for connectively engaging with a shotgun barrel and a choke disposed in the gas exchanger having longitudinal axial channels on the exterior surface thereof, such that gas from the shotgun barrel flows through the longitudinal axial channels and gathers in front of the muzzle end of the choke to retard the release of pellets from a wadding cup exiting the muzzle. | 01-19-2012 |
20120240443 | ONE PIECE PROGRESSIVE BORE MULTI-STAGED SHOTGUN CHOKE SYSTEM - A shotgun choke system consisting of four zones, a the first zone being a compression or constriction zone; the second zone being a stabilization zone; the third zone being a second compression or constriction zone; and the forth and final zone being a second stabilization zone. The shot package is compressed and constricted into a tight, uniform shot delivery package, and the wad package is completely separated from the shot package. The shot package therefore leaves the barrel of the choke, first, while gasses from the shot escape through a muzzle break and the wad package exits following the shot package, drastically reducing recoil and improving the shot pattern over prior art choke embodiments. | 09-27-2012 |
20140041274 | WEAPON BARREL - A weapon barrel of an automatic firearm contains a muzzle that is set into flexural oscillations by firing, with a damping device for damping the flexural oscillations by frictional processes between a radially projecting friction ring disposed on the muzzle and at least one friction element loaded by of a spring element. Wherein at least one friction element loaded by a separate spring element acts on both sides of the friction ring respectively and is supported so as to be axially movable relative to the muzzle. | 02-13-2014 |
20140096426 | FIREARM CHOKE TUBE - A firearm choke tube includes a cylindrical body, a choke interrupted thread section, and a locking tab. The choke interrupted thread section is positioned on an outer surface of the cylindrical body and configured to threadably engage an interrupted thread section of a barrel of a firearm to limit longitudinal movement of the cylindrical body relative to the barrel. The locking tab protrudes from the outer surface of the cylindrical body and is configured to interface with a detent formed in the barrel to limit rotational movement of the cylindrical body relative to the barrel. | 04-10-2014 |
20140130391 | DUCKBILL STYLE SPREADER ATTACHMENT FOR A SHOTGUN - A muzzle attachment for a shotgun is disclosed including a first portion that has a first end, a second end, a central axis extending from the first end to the second end, and a through bore extending from the first end to the second end, concentric about the axis. The muzzle attachment also includes a second portion having a pair of opposing extensions defining a gap therebetween. Each extension has a base adjacent the second end of the first portion and a distal end extending away from the base. Additionally, the gap has a narrow end adjacent the base, a wide end adjacent to the distal end, and a pair of opposing lateral sides extending along a projection of the axis. Each of the sides includes a webbing disposed at the narrow end; wherein each webbing has an inner surface, an outer surface, and a radial thickness which tapers from the narrow end to the wide end. | 05-15-2014 |
042760100 | Method of making or modifying by metal working | 15 |
20080250690 | PROCESS FOR MANUFACTURING DOUBLE BARREL SHOTGUN BARRELS, AND THE RESULTING DOUBLE BARRELS - A method for manufacturing double barrel shotgun barrels, including the steps of providing an elongated metal stock material having a first end and a second end, forming two index holes in both the first end and the second end of the material, forming a first and second bore hole through the material, and then profiling the material into a desired gun barrel profile. 16. Double barrel shotgun barrels formed from a single piece of elongated solid metal stock material according to the process of the invention are also taught. | 10-16-2008 |
20100236122 | Flowforming Gun Barrels and Similar Tubular Devices - Gun barrels and similar tubular devices for repeatedly guiding fired projectiles are fabricated from superalloys, titanium metals, tantalum metals, and similar metal materials by a flowforming process. Combinations of these metals are also flowformed to produce gun barrels and projectile-guiding tubes. In addition, inner liners for such barrels and tubes are made with these metals and flowforming processes. These barrels and tubular devices can withstand high temperatures and corrosive environments. The flowforming process is efficient and produces strong, yet thin and/or light weight, gun barrels and similar tubular devices. | 09-23-2010 |
20100281743 | Modular Barrel Assembly - A modular barrel assembly for firearms that includes a breech section formed from a high-strength material and a barrel section. the barrel section generally is formed separately from the breech section and can be formed from a different, lighter-weight material. Once formed, the barrel and breech sections are attached together to form the complete barrel assembly. | 11-11-2010 |
20100307045 | Projectile Weapons - 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 ( | 12-09-2010 |
20110113667 | Weapons System Construction And Modification - This invention is directed to a rifle barrel and a method for modifying a pre-existing rifle barrel comprising dissembling said pre-existing rifle so that said barrel is removed from said pre-existing rifle placing said barrel in a sleeve having an inner diameter larger then said diameter of said barrel for receiving said barrel thereby defining a void arranged between said barrel and said sleeve when said barrel is placed in said sleeve reducing the outer diameter of said barrel near the breach end of said barrel so that said sleeve will cover said barrel up to the action of said rifle when said barrel is placed in said sleeve filling said void defined by said barrel and said sleeve with filler material attaching a weld-on thread assemble to said sleeve at the muzzle end of said barrel and assembling said pre-existing rifle with said barrel placed in said sleeve. | 05-19-2011 |
20130118049 | UNITARY BARREL, CHAMBER AND ACTION FOR A FIREARM - 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. | 05-16-2013 |
20130174462 | Barrel Assembly For Firearms and Method For Manufacturing It - 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. | 07-11-2013 |
20130180149 | PROCESS OF MANUFACTURING A RIFLE TO HAVE AN INTEGRAL SOUND SUPPRESSOR - A process of manufacturing a rifle to have a sound suppressor on a barrel of the rifle. The process includes over-molding or over-injecting a structure onto the barrel so that the structure provides a sound suppressor, the barrel and sound suppressor form an integral assembly, and the sound suppressor defines an integral longitudinal extension of the barrel. | 07-18-2013 |
20130227871 | Cancellation muzzle brake assembly - A muzzle brake assembly for a firearm provides several benefits including an ability to reduce firearm recoil by redirecting the propellant gases and reshaping the pressure wave in a new manner, reduction or substantial elimination of muzzle movement upon discharge, lessening the acoustic signature of the firearm closer to non-braked levels and relatively easy and low cost to manufacture by current machining practices thereby minimizing cost of manufacturing. Ports in the muzzle brake assembly are arranged opposing one another about a circumference of the muzzle brake assembly. | 09-05-2013 |
20140033591 | DEVICE FOR PRODUCING A GUN BARREL AND A GUN BARREL - The invention relates to a device for producing a gun barrel, in which the barrel is formed from a pipe blank ( | 02-06-2014 |
20150027022 | MACHINE TO MANUFACTURE GUN BARRELS AND METHOD OF USING - A machine for reaming a bore in a tubular member that includes a support block connected to a track, a holder connected to the support block, a reamer adapted to pass through at least a portion of the bore, a reamer drive for rotating the reamer, and a position drive coupled to the support block for moving the support block along the track. Also, a method of reaming a bore in a tubular member including providing a machine as described and a tubular member having a bore, securing the tubular member to the holder such that the longitudinal axis of the reamer is co-axial with the longitudinal axis of the bore, and powering the reamer drive and the position drive such that the reamer rotates and the support block moves along the track. The tubular member may be a gun barrel. | 01-29-2015 |
20160016217 | METHOD FOR PRODUCING A GUN BARREL HAVING BARREL FLUTINGS - 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. | 01-21-2016 |
20160030989 | METHOD FOR PRODUCING A GUN BARREL WITH INTEGRALLY ADJOINING HOUSING - A method for producing a gun barrel with an integrally adjoining housing for at least one breech head includes the steps of providing a cylindrical blank having a through-bore corresponding to the breech head diameter; hammering a first longitudinal portion of the blank on a part of a first hammering mandrel corresponding to the inner profile of the barrel whilst the first hammering mandrel is guided through the through-bore; and hammering a second longitudinal portion of the blank on a second hammering mandrel corresponding to the inner profile of the housing whilst the second hammering mandrel is inserted into the through-bore. | 02-04-2016 |
20160109204 | Firearm Barrel Including a Gas Pressure Relief Chamber - Described herein is a firearm barrel operable to manage gas pressure behind a projectile traveling through the firearm barrel. The design of the firearm barrel enables a firearm to be discharged at a low-report by managing gas pressure behind a bullet while the bullet is under compression from the barrel. In embodiments, the firearm barrel includes an inner barrel having at least one opening in its surface and an outer tube surrounding the inner barrel, such that a chamber is created between the inner barrel and outer tube, the chamber being operable to temporarily retain gases that are generated as a result of discharging a firearm. The gases may pass from the barrel into the chamber through the at least one opening, and the gases may be temporarily retained within the chamber before escaping back through the at least one opening and out of the barrel behind a discharged projectile. | 04-21-2016 |
20180023913 | NON-SEGMENTED COMPOSITE BARREL FOR GAS OPERATED FIREARMS | 01-25-2018 |