71results about "Barrels" patented technology

An assembly for use as a net-launching projectile is disclosed. The assembly comprises a housing storing a net in a packed configuration and configured such that a rotation of the assembly causes the net to be ejected from the housing, thereby unpacking the net into an expanded configuration. The assembly also comprises a plurality of circumferentially disposed protrusions or ridges for engaging with corresponding rifling in a barrel to induce the rotation of the assembly when launched. Also disclosed is a net-launching system and a method of capturing an aerial target.

A gun barrel can include a cylindrical layer defining an internal bore; and a geopolymer layer on the cylindrical layer; and a continuous fiber reinforced composite on the geopolymer layer. Advantageously, the geopolymer layer can include a thermally conductive material dispersed in a geopolymer matrix. Such a multilayered gun barrel can improve the heat transfer characteristics of the gun barrel relative to a gun barrel without such a geopolymer layer. The geopolymer layer additionally can include a density-reducing material dispersed through the geopolymer matrix to further improve heat transfer and / or weight of the gun barrel relative to a gun barrel composed entirely of metal.

A 25 mm ammunition cartridge centered about a longitudinal axis and extending from a proximal end to a distal end including a case having a base defining the proximal end and a case sidewall extending from the base to a distal mouth and defining a case cavity, a propellant charge disposed in at least a portion of the case cavity, a body having a proximal cup and a body sidewall extending to a distal interface, wherein at least a proximal portion of the body is receivable in the case cavity distal to the propellant charge, a cap extending from a proximal cap portion coupled to the distal interface of the body to a dome defining the distal end of the cartridge, wherein the body and the cap define a projectile cavity, and one or more projectiles positioned within the projectile cavity.

A suppression device for a rotary machine gun includes a body; and a core configured to fit inside the body, wherein the core includes: a plurality of suppression tubes symmetrically oriented around the core with one each of the plurality of suppression tubes corresponding to one of a plurality of barrels of the rotary machine gun, and a redirector at a distal end of the core and including an angled surface to direct propellant gas emitted through a central channel of the core radially outward.

The present invention relates to a method for producing barrel segments (1), wherein the method comprises the steps of i.) a capsule structure (10) is arranged enclosing a template core (20), ii.) powder is arranged in the cavity between the capsule structure (10) and the template core (20), wherein the template core (20) is fully or partially arranged with grooves for embossing groove patterns on the barrel segment (1) and wherein a foil (23) is arranged on the template core (20), (iii) the powder is pressed by means of high pressure and heat, also known as hot isostatic pressing, HIP, so that the powder, foil and capsule structure are joined together iv.) the template core (20) is removed to produce a barrel segment (1). The invention further relates to a barrel and a launching device.

A representative reverse-saboted sidearm system includes: a sidearm having a barrel assembly with an inner wall defining a longitudinally extending bore; and a round of reverse-saboted ammunition having a non-necked casing, a reverse sabot, and a projectile, the reverse sabot mounted at a discharge end of the casing with a distal end of the reverse sabot extending outwardly from the casing, the reverse sabot exhibiting a diameter corresponding to a diameter of the casing and defining a receiving passage aligned with a longitudinal centerline of the casing, the projectile being at least partially disposed within the receiving passage of the reverse sabot; the inner wall of the barrel assembly being configured to engage an exterior surface of the projectile to direct the projectile.

An unmanned aerial vehicle (UAV) launch tube (100) that comprises at least one inner layer of prepreg substrate (370) disposed about a right parallelepiped aperture (305), at least one outer layer of prepreg substrate (380) disposed about the right parallelepiped aperture (305), and one or more structural panels (341-344) disposed between the at least one inner layer of prepreg substrate (340) and the at least one outer layer of prepreg substrate (380). An unmanned aerial vehicle (UAV) launch tube (100) that comprises a tethered sabot (700,740) configured to engage a UAV within a launcher volume defined by an inner wall, the tethered sabot (700,740) dimensioned to provide a pressure seal at the inner wall and tethered to the inner wall, and wherein the tethered sabot (700,740) is hollow having an open end oriented toward a high pressure volume and a tether (740) attached within a hollow (910) of the sabot (700) and attached to the inner wall retaining the high pressure volume or attach to the inner base wall (1013). A system comprising a communication node (1500-1505) and a launcher (1520) comprising an unmanned aerial vehicle (UAV) in a pre-launch state configured to receive and respond to command inputs from the communication node (1500-1505).

A firearm barrel has an elongated body defining a bore and defining a bore axis, the body defining a breech end and an opposed muzzle end, a chamber defined in the breech end and contiguous with the bore; the bore having an interior surface having a plurality of alternating lands and grooves, the grooves being surfaces separated from the bore axis by first radius, the lands being surfaces separated from the bore axis by second radius less than the first radius and the lands and grooves being straight elements parallel to the bore axis, such that no spin is imparted to a projectile propelled down the bore. The lands and grooves may extend from the chamber to the muzzle end. The bore may have a constant cross-sectional profile along its length.

A bull barrel assembly for an airgun includes a metal barrel received in a composite barrel sleeve. Two tensioners are threaded on the respective opposite threaded ends of the barrel against the respective opposite ends of the sleeve such that the sleeve is compressed and the barrel is tensioned. The compressed sleeve is rigidly secured to the tensioned barrel by an adhesive. The barrel assembly is formed by coating a surface of a metal barrel with an adhesive, assembling the adhesive-coated barrel into a composite barrel sleeve before the adhesive sets, tightening the tensioners onto the respective opposite threaded ends of the barrel and against the respective ends of the sleeve to place the barrel in tension and the sleeve in compression before the adhesive sets, and allowing the adhesive to cure while the sleeve is in compression and the barrel is in tension.

A device (10) for launching decoys, in particular for a naval vessel, characterised in that it comprises: - at least two tubes (12) for launching decoys; - a single pneumatic circuit (14); and - a distribution block (16) interposed between the pneumatic circuit (14) and the launch tubes (12), the distribution block (16) comprising, for each launch tube (12), a valve (18) that can move between an open position, in which the corresponding launch tube (12) communicates with the pneumatic circuit (14), and a closed position, in which the corresponding launch tube (12) is isolated from the pneumatic circuit (14).

The application discloses a continuous firing multi-restraint bullet structure, relates to the technical field of law enforcement equipment, and comprises a main shell, restraint bullet bodies, primers and a conductive assembly which are installed in the main shell, the rear end of the main shell can be installed on a riot device main body, the front end of the main shell is provided with a plurality of firing channels, the restraint bullet bodies correspond to the firing channels one by one, each firing channel is provided with one restraint bullet body, the primers correspond to the restraint bullet bodies one by one, the rear end of each restraint bullet body is provided with one primer, and the primer is provided with an electric arc triggering point; the minimum distance from the electric arc triggering point on the primer to the conductive assembly is the firing distance of the primer, the firing distances of any two primers are different, and when the conductive assembly is electrified, the primers can be fired in turn according to the firing distances from small to large. The application further discloses a riot device which comprises a riot device main body and the above-mentioned continuous firing multi-restraint bullet structure. The application can realize continuous firing of multiple restraint bullets and improve the riot control effect.

A barrel cooling system for a weapon includes a corrosion prevention cylinder between a barrel and cooling fins arranged around the cylinder.

The invention relates to firearms, and more particularly to a caseless bolt-action firearm. A caseless bolt-action firearm comprises a receiver (1) with a support (2), a bolt (63), a firing pin (36), a trigger (28), a magazine latch (27), a safety catch (31), a safety catch bracket (24), a trigger guard (3), an add-on stock (6), a grip (14), a magazine (15) and a barrel (18), wherein in the front part of the receiver (1) there is mounted a weapon chamber (17), and the bolt (63) contains a guide rod (41) for a conical bolt bushing, a triple-layered rifled cartridge (45) and a triple-layered smooth cartridge (44). The invention makes it possible to increase the operating reliability of a caseless bolt-action firearm in difficult conditions, easily eliminate delays, simplify loading and unloading, enable the firearm to operate reliably under combat conditions with forced feed of ammunition, including soiled ammunition, improve the stability of the projectile trajectory and increase firing accuracy both from stable positions and in the case of point shooting.

A cooling device for a gun barrel has a muzzle assembly. The muzzle assembly has a shaft, a baffle, a turbine assembly, a compressor assembly, and a rotary drive tube. The rotary drive tube connects the turbine assembly to the compressor assembly. A heat exchanger may be releasably connected to the cooling device. A diffuser or muzzle device may be arranged downstream of the turbine assembly.

A suppressor for a multi-barrel weapon system includes an adapter baffle configured to engage the weapon system and receive the muzzles of the barrels, a plurality of extension baffles configured to be aligned with and arranged in a stack on the adapter baffle, and an endcap baffle configured to align with the extension baffles and engage the final extension baffle in the stack. A plurality of projectile apertures in each baffle aligns with the muzzles to define a plurality of parallel bullet paths. Each projectile aperture can be in fluid communication with each other projectile aperture. Each extension baffle can include a plurality of internal vanes configured to circulate propellant gasses emitted from the muzzles of each barrel within an interior space at least partially defined by the extension baffle. The adapter baffle can define an expansion space in which propellant gases emitted from each muzzle comingle during discharge of the weapon system.

A nonlethal projectile includes a debilitating material for immobilizing a target. The projectile is capable of self-separating or otherwise opening after launch by a launcher to release the debilitating material prior to impact with a target. The launcher is capable of initiating separation of the projectile. Opening may also be accomplished by a control circuit with a radio-frequency identification (RFID), where an RFID tag in the projectile causes the projectile to open at a user-specified distance from the launcher or by the force of launch on the projectile. A magazine may holds a plurality of projectiles and the various projectiles of the magazine may be configured to open at different distances and / or times after launch. The launcher may include a trigger and / or a safety switch to prevent the projectile from becoming armed until a certain parameter is met. The debilitating material may also be released through pores in the projectile.

The present invention relates to a weapon barrel (10) having a convertible guide rail set, wherein the weapon barrel (10) has primary guide rails for a first caliber which are fixedly connected to the weapon barrel (10), and the primary guide rails have at least one lower primary guide rail (11), a starboard primary guide rail (12), and a port primary guide rail (13). The weapon barrel is characterized in that fastening elements (40) are arranged in the weapon barrel (10) adjacent to the lower primary guide rail (11), the starboard primary guide rail (12) and the port primary guide rail (13), wherein: the convertible guide rail set comprises at least one protective set (20); the protective set (20) has six protective elements; the protective elements can be arranged on the fastening elements (40) and in the arranged state completely cover the fastening elements (40); the protective elements are no taller than the primary guide rails and therefore do not influence the first caliber; the convertible guide rail set comprises at least one guide set (30); the guide set (30) can be arranged on the fastening elements (40) and, in the arranged state, the guide set (30) performs the function of the guide rail; the guide set (30) is designed for a second caliber; and the second caliber is smaller than the first caliber.

The invention relates to the technical field of alloy materials, in particular to a Cr-Fe functional alloy material for prolonging the service life of a gun barrel and a preparation method thereof.The alloy comprises, by mass, 74%-78% of Cr, 22%-56% of Fe and 0.5%-1.2% of C. The microstructure is mainly composed of a BCC phase (larger than or equal to 85%), and Cr23C6 strengthening phases (3%-8% and 0.2-3.0 microns) are evenly separated out. During preparation, laser remelting is conducted on a pre-plated hard chromium base body under nitrogen protection, the laser power density is 4.95 * 10 < 4 >-9.20 * 10 < 4 > W / cm < 2 >, the scanning speed is 5-80 mm / s, preheating is conducted to 400 DEG C, and gradient cooling is conducted; the integrated visual system regulates and controls parameters in real time, the depth-to-width ratio of a molten pool is guaranteed to be 1: 1.5-1: 2.5, and the Cr / Fe distribution standard deviation is smaller than or equal to 5%. The interface dislocation density of the alloy is larger than or equal to 1 * 10 < 14 > m <-2 >, the high-temperature abrasion mass loss is smaller than or equal to 0.01 g, the abrasion resistance is three times that of original hard chromium, and the service life of a gun barrel is remarkably prolonged.

A semi-automatic rifle has a main body and a barrel group. The barrel group has a barrel extending along a barrel axis, engaged at one end with the main body, a rib extending along the barrel axis, engaged with the barrel in an upper region, and a guide device for supporting weapon accessories, extending parallel to the barrel axis. The guide device engages the rib in a region proximal to the main body.

The invention discloses a method and a structure for adjusting the direction of a gun barrel of a multi-barrel weapon, which are simple in structure and convenient to adjust and use. Comprising a middle rod and a frame body, the middle rod is fixedly sleeved with the frame body, a plurality of gun barrel holes are formed in the frame body, a gun barrel is arranged in each gun barrel hole in a matched mode, and three adjusting block assemblies are evenly installed on the hole wall of each gun barrel hole in the circumferential direction; the adjusting block assembly comprises a screw rod, a static sliding block, a pressing block and a movable sliding block, the static sliding block is sequentially sleeved with the static sliding block, the static sliding block is fixedly connected with the screw rod, the movable sliding block is in sliding fit with the screw rod, an adjusting nut is arranged on the screw rod in a matched mode, the plane of the movable sliding block is pressed by the adjusting nut, and an inner hole of the pressing block is a kidney-shaped through hole so that the position of the pressing block can be adjusted in the radial direction. The two ends of the pressing block are inclined faces, the pressing block is in matched contact with the static sliding block and the movable sliding block through the inclined faces, and the inner side end face of the pressing block is used for making contact with the gun barrel so that the gun barrel can move towards the circle center of the gun barrel hole in the radial direction of the gun barrel hole.

A multi-caliber firearm includes a barrel extension configured to connect to an interchangeable barrel that is selected from at least two predetermined caliber sizes. An interchangeable magazine well receives a magazine that is selected to house cartridges from the predetermined caliber sizes. The magazine well includes a first end facing towards the stock and a second end facing towards the barrel extension. A bolt carrier group includes a bolt carrier and a bolt. A reverse movement unloads a used cartridge from the bolt and a forward movement loads a new cartridge from the magazine. The bolt carrier group receives an interchangeable bolt that is selected to load and unload one of the predetermined caliber sizes. The bolt includes a longitudinal cartridge retaining notch facing towards the magazine. The cartridge retaining notch is configured to retain the new cartridge in the magazine during the reverse movement.

A firearm with a slide and a frame. The slide has a slide rail. The frame has a frame rail. The frame rail interfaces with the slide rail. The frame rail has a lubrication groove and a debris removal port. The lubrication groove extends along a surface of the frame rail that bears against the slide rail during operation of the firearm. The debris removal port has gap within the frame rail proximate to an end of the lubrication groove.

The present invention relates to rifled weapon barrels and sleeves (hereinafter this also applies for example to the bores of pistols and machine guns etc.) having a nitrided interior surface with a layer of thin dense chrome deposit thereon. The inventor has discovered that a thin dense layer of chrome having thickness of 0.0001 to 0.0002 inches unexpectedly falls within the tolerance of the bore of the barrel (and sleeved bore) as specified by the manufacturer, and the thin dense chromed rifle barrels, and sleeves, of the present invention unexpectedly do not need to be oversized as is the case with respect to chromed bores of the prior art (of standard thickness 0.001 to 0.005 inches). The additional benefit of the hardness of the rifle barrels and sleeves of the present invention unexpectedly do not have to be replaced as often as chromed barrels (and sleeves) of the prior art.

A cartridge for a conducted electrical weapon may comprise a body having a first end opposite a second end and an outer surface opposite an inner surface. A projectile may be disposed within the body. The inner surface of the body may define a plurality of grooves extending from the first end of the body to a location within the body.

A suppression device for a rotary machine gun includes a body; and a core configured to fit inside the body, wherein the core includes: a plurality of suppression tubes symmetrically oriented around the core with one each of the plurality of suppression tubes corresponding to one of a plurality of barrels of the rotary machine gun, and a redirector at a distal end of the core and including an angled surface to direct propellant gas emitted through a central channel of the core radially outward.

A method of forming a carbon fiber rifle barrel may include the steps of heating a barrel core to increase the length of the barrel, placing the barrel core inside a mold and holding the lengthened barrel in place, adding a carbon fiber mix to the mold in which the carbon fiber mix includes a blend of resin and chopped carbon fibers, sealing the mold, curing the carbon fiber mix surrounding the lengthened barrel core in which the cured carbon fiber mix holds the length of the barrel core creating a tension on the cooled barrel core which increases a rigidity of the rifle barrel thereby increasing the accuracy of the rifle barrel, removing the rifle barrel from the mold, and finishing the rifle barrel via grinding to a desired finish.

Automated ballistic gun system comprising a fixed explosive chamber for receiving solid propellant charges without casings, a ballistic tube with a lateral opening for receiving a projectile, a gas-operated mechanism that automatically opens the explosive chamber and the lateral opening of the tube after firing, a robotic loading element that automatically feeds explosive charges and projectiles, and an electronic control unit that synchronizes all processes and can process external target coordinates.

A projectile for launching from a launching device with a propellant charge in a barrel is arranged with a cross-section in the shape of a curve of constant width.

A stacked projectile launcher system is disclosed. The system includes: a first projectile engaged with a second projectile to define a projectile column having a central axis, the second projectile located at a distal end of the projectile column. A propulsion mechanism is connected to the first projectile or the second projectile, or to both projectiles, for sequentially propelling each projectile from the projectile column. A guide assembly provides directional guidance to the second projectile during launch, and the guide assembly comprises a guide surface of the first projectile and a guide surface of the second projectile, wherein the guide surface of the first projectile and the guide surface of the second projectile slidably engage each other and are parallel to the central axis. A controller operatively is connected to the propulsion mechanism.

The present invention relates to a method for providing a coating to the inner surface of a barrel of a small- or medium-caliber firearm, wherein the inner surface defines the internal volume, and the method provides a firearm including the barrel to be processed in a reaction chamber, and provides a cylindrical electrode having an outer surface and including a target material substantially coaxially within the barrel, closes the reaction chamber, reduces the pressure to a predetermined pressure value, supplies gas to the reaction chamber, thereby supplying gas into the internal volume, and raises the pressure within the reaction chamber to an operating pressure, using the electrode as a target cathode and the barrel as an anode. The process includes the steps of: applying a first electric field to the electrode to activate the gas into a plasma gas; using the plasma gas to remove the target material and deposit it on the inner surface; turning off the first electric field; stopping the gas supply; returning the reaction chamber to atmospheric pressure; and removing the firearm, including the processed barrel, from the reaction chamber, wherein the distance between the outer surface of the electrode and the inner surface of the barrel is at least 0.5 mm, the electric field is applied for a time long enough to form a layer of the target material on the inner surface of the barrel, and the product of the operating pressure and the distance between the electrode and the inner surface is 10 -5 This concerns the method of Torr.cm ~ 45 Torr.cm.