148 results about "Sabot" patented technology

Launching payloads at high velocity uses high-pressure gas or combustion products for propulsion, with injection of high pressure gas at intervals along the path behind the payload projectile as it accelerates along the barrel of the launcher. An inner barrel has an interior diameter equal to the projectile diameter or sabot containing the projectile. An outer casing surrounds the inner barrel. Structures at intervals attach the outer casing and the inner barrel. An axial gas containment chamber (AGC) stores high pressure gas between the inner barrel wall, the outer casing wall, and enclosure bulkheads. Pressure-activated valves along the barrel sequentially release the high pressure gas contained in the AGC in to the barrel to create a continuously refreshed high energy pressure heads behind the projectile as it moves down the barrel. A frangible cover at the exit end of the barrel allows the barrel to be evacuated prior to launch. The launcher is rapidly recyclable. The valves close automatically after the projectile has exited the barrel, allowing a new projectile to be introduced into the breech and the AGC to be recharged with high-pressure gas.

A system operable by a single workman safely launches and recovers an unmanned undersea vehicle (UUV) using a motor-driven carriage to transport the UUV to the water. The UUV is fitted to a reconfigurable sabot. An elevating ramp on the carriage supports the sabot and UUV on an elongate conveyer assembly having inclined rollers aligned with motor-driven belts to selectively outwardly and inwardly displace the UUV between the carriage and the water. Hinge members are used to rotatably connect the elevating ramp to the carriage, and a lifting mechanism connected to the carriage and ramp rotatably displaces the ramp about the hinge members. The rollers and belts displace the UUV on the conveyer assembly. A winch on the elevating ramp has a line connected to the UUV to lower and raise the UUV during launch and recovery operations.

The invention relates to a light-gas gun pneumatic separation sabot, and aims at solving the problems that for an existing sabot, an additional device is needed to conduct separation on the sabot, the effect is not ideal and the cost is increased. The light-gas gun pneumatic separation sabot is composed of an upper supporting disc, a lower supporting disc and a base plate; the upper supporting disc and the lower supporting disc are two corresponding semi-cylinders. An upper half bullet hole is formed in the center of the upper supporting disc, and the middle of the upper half bullet hole is hollowed out to be of a hollow structure; the lower supporting disc and the base plate are formed to be a whole, a lower half bullet hole is formed in the center of the lower supporting disc, and the middle of the lower half bullet hole is hollowed out to be of the hollow structure; two seal grooves are carved on the base plate. The upper half bullet hole of the upper supporting disc corresponds to the lower half bullet hole of the lower supporting disc, a semicircle notch of the upper supporting disc is engaged with a boss of the lower supporting disc, under the condition of not adding a separating device, automatic separation of the sabot and a bullet is achieved through air resistance in a target chamber, and the light-gas gun pneumatic separation sabot has the advantages of improving the external ballistic property of the bullet and reducing the firing cost.

A 40 mm ammunition projectile for firing without significant spin in an M203 or an M320 grenade launcher. The ammunition includes a projectile body having hollow inner cavity therein for an explosive warhead; a projectile fin assembly; a projectile nose element having a conically shaped front area thereon; a decoupled projectile sabot in two or more joining sabot petals enclosing the body; a base cartridge case having vent holes, a bowl area for placement of a copper closure cup containing propellant therein, and a closure plug for threading into the rear of said cartridge case. The projectile fin assembly may provide a canted angle on each fin blade to (relatively very slowly) spin up the round at less than 30 Hz. Projectiles with body length less than five inches may be launched in an M203 grenade launcher while projectiles with body length up to eight inches may be launched in an M320 grenade launcher.

The invention discloses a testing device and method for simulating deep rock mass impact failure. The testing device comprises an impact mechanism and a confining pressure loading mechanism, wherein the impact mechanism comprises a gas gun tube, a sabot and a flyer, the confining pressure loading mechanism comprises a confining pressure cylinder body, a through hole is formed in the middle part of a cover of the confining pressure cylinder body, two confining pressure testing sensors are arranged on the inner wall of each semicircular cylinder body of the confining pressure cylinder body, a blocking piece vertical to the axial line of the confining pressure cylinder body is arranged in the confining pressure cylinder body, a sample to be tested is clamped between the blocking piece and the cylinder bottom, a hoop is sleeved at the outer wall of the cylinder body, a conducting wire hole and a grouting hole for injecting an expansive cement mixture are formed in the cylinder bottom, and the expansive cement mixture is composed of expansive cement, water and iron sand or expansive cement, water and rubber powder. The method comprises the steps of assembling the testing device, debugging the assembled device, and impacting the blocking piece through the flyer. According to the invention, the proportions of the raw materials of the expansive cement mixture are adjusted to simulate the environment of deep rock mass, and the testing device has the advantages of high safety, good sealing property, stable confining pressure load, convenience and quickness for operating, and the like.

A supercavitating water-entry projectile having empennage on the aft end which provides both aerodynamic and hydrodynamic stability and a supercavitating nose section is provided. A representative projectile is a subcaliber munition adapted for use in a 25 mm weapon using a sabot currently in use with the M919 round. The projectile has circumferential grooves around its center section to match these sabots. A key feature in the invention is the size and shape of the nose section. The projectile has a novel high strength extended blunt nose section followed by a truncated conical section which angles towards the body of the projectile in the range of five degrees. During underwater trajectory, the entire projectile is contained within the cavitation bubble formed by the blunt nose tip. The projectile's aft empennage, which provides both aerodynamic and hydrodynamic stability, fits within the bore of the weapon.

A muzzle break for a gun comprising a baffle, a series of slots in the housing of the muzzle break in which the slots exhaust gas of a pressure wave deflected by the baffle during firing of the gun. A membrane seals the slots for underwater use and is separable by the deflected exhaust gas. Another membrane seals a sabot separation chamber of the muzzle break adjacent to the baffle and in a projectile path from the baffle. The membrane for the separation chamber is detachable by a projectile fired from the gun.

The invention discloses a vacuum chamber connecting device used for an air cannon. Seal devices are arranged between the vacuum chamber connecting device and an air cannon barrel as well as between the vacuum chamber connecting device and a vacuum chamber respectively. An air extraction hole is formed in a vacuum chamber air extraction tube body, an air flow deflection tube body is provided with an exhaust hole communicated with the vacuum chamber air extraction tube body, the air extraction hole is connected to a vacuum pump, and a separating device is arranged in a sabot separator piston tube body. A sabot separator piston is provided with a separation opening used for clamping a sabot and labyrinths used for sealing the sabot separator piston and the sabot separator tube body. The sabot is clamped in the separation opening and located between the sabot separator piston tube body and the air flow deflection tube body to seal the sabot separator piston tube body. The seal ring is arranged, the sabot is clamped in the separation opening to seal the sabot separator tube body, and the labyrinths are arranged on the sabot separator piston, so that sealing of the vacuum chamber connecting device used for the air cannon is achieved, the sealing effect is good, the structure is simple, and assembly and disassembly are easy.

A method of making a projectile apparatus is provided that includes making one or components of the apparatus using an additive manufacture technique such as 3-D printing or laser-aided additive manufacture. The projectile apparatus can have a projectile, a propellant, and one or more optional components such as a wading, a sabot, and an intermediary device. The projectile can be fired through a barrel having a smooth bore. Additive manufacture methods can be used that involve forming components from superalloys having nanoparticles incorporated therein. The projectile apparatus can convert gas pressure or gas velocity into a high rate of projectile spin. The projectile has long-range accuracy due to a high or sustainable velocity and high rate of spin.

A laser-based tracking system for tracking the position of a targeted moving object. The tracking system includes two lasers: a reference laser and a slave laser. Each laser is a weapon, and when locked on a target, single laser effectiveness may be doubled without a thermal blooming performance loss associated with a single laser operating at twice the power. The slave laser beam is dithered relative to the reference laser beam in a direction along the longitudinal axis of the target. The system includes an optical receiver for repetitively scanning the irradiance profile reflected by the target. Since the slave laser beam is dithered relative to the reference laser beam, both laser beams will jitter and drift together providing a gain factor of two in average irradiance on the moving target.

A ring airfoil style paintball comprises a ring airfoil carrying a marking agent. The marking agent is located in one more compartments of a body of the ring airfoil. In one embodiment, marking agent is located in an annular ring in a nose section of the body, or in a plurality of spherical compartments in the nose section of the body. In one embodiment, the ring airfoil style paintball is connected to a sabot when launched. Cartridges comprising a sabot containing the ring airfoil style paintball are launched from a launcher. In one embodiment, the cartridges are launched with a compressed air charged. The launcher includes a magazine for sequentially delivering cartridges for launch. A stripper associated with the launcher strips the sabot from the ring airfoil paintball, and an ejector ejects the stripped sabot from the launcher.

A vehicle for launching from a gas gun having a housing; preferably incorporating a precessional attitude control system; and utilizing a flared base, fins, or active use of the attitude control system during passage through the atmosphere. Subtly canting the fins can produce desired spinning of the vehicle. The propulsion system can employ liquid, hybrid, or solid fuel. A removable aero-shell assists atmospheric flight with thermal protection being provided by anticipated ablation, an ablative aero-spike, or transpirational cooling. And a releasable sabot enhances the effectiveness of the launch.

To maintain predetermined tolerance conditions for the front guide region (7) of a guide sabot (5) in a simple manner without reconditioning, even if the drive or guide cage (5) is plastic, the invention begins with a premounted cage shot (1), i.e., a sabot projectile, wherein cage segments directly adjacent to one another on circumferential sides surrounding the shot body are selected so that the cage (5) has an outer diameter in the front guide region (7) that is less than the predetermined target diameter (Do). Adjustment of the diameter of the guide region (7) then occurs subsequently, for example, by the insertion of an insert (12.1) designed in the shape of a bushing, wherein the insert has a conical outer surface (13) and is placed into an annular gap (11) remaining between the shot body (2) and segments (19, 20) of a support wall (8) of the cage (5).

The invention relates to a structure immersing experiment emission device which comprises a spring tube, a bracket, a motor, a first flange, a thrust adjusting gasket, a lift, a screw, a sabot, a machine pin, a thrust motor, a thrust spring and a second flange. The device can widely adjust the immersing speed and angle of a structure, meets the precision requirement needed by an experiment, and has great maneuverability and safety.

A connector having a front end for attachment to a terminal and a back end for attachment to a coaxial cable includes a body, a post mounted within the body; and a contact assembly movably mounted within the post and body. The contact assembly includes a guide, a contact mounted to the guide, and preferably a clip mounted to the contact for making electrical and mechanical connection with the center conductor of the coaxial cable and a sabot. The contact assembly moves longitudinally toward the front end of the connector, such that the front end of the contact moves from a first position completely within the body to a second position proximate the connector interface, as the connector receives the coaxial cable. Preferably, the guide has an opening for the center conductor, which is viewable to a user during attachment until the center conductor enters the opening. The sabot moves with the contact assembly in a telescoping fashion enabling a greater distance of axial displacement. In addition, the contact assembly preferably contains a means to prevent the cable from being forced backward after installation.

A method for producing a shell and a shell produced by this method, wherein the shell has a projectile, a combustible propellant charge casing, and a casing cover that joins the propellant charge casing with the projectile, such that the projectile has a sealing ring adjacent to the casing cover. To realize cost-effective assembly of a shell of this type, the casing cover is produced as an injection molded part made of an elastic plastic, such that the front end region of the casing cover facing the projectile forms the sealing ring.

A sub-calibre projectile incorporating a penetrator and a sabot formed of several segments, the penetrator and sabot incorporating profiles that cooperate with one another so as to ensure the axial drive of the penetrator by the sabot when the projectile is being fired, such projectile wherein there is axial play (J) between the profile on the sabot and that on the penetrator so as to enable a limited relative axial displacement of the sabot with respect to the penetrator, means being provided to ensure the radial locking of the sabot segments by the penetrator in the foremost position of the sabot with respect to the penetrator, this locking no longer being ensured in the rearmost position of the sabot with respect to the penetrator.

A sabot for a muzzleloading firearm has a cylindrical body aligned with a bore axis. The body has a sleeve portion extending in a first direction adapted to receive a bullet. A post extends from the body in a second direction opposite the first direction. The post may have a cross sectional profile that has articulated surfaces, and which may define channels along the post. A powder pellet defining a bore may be closely received on the post, with an interference fit retaining the pellet on the post. The sabot may be employed to extract a pellet from a storage container, by inserting the post in the pellet bore to extract the pellet from the container. The sabot may be part of an assembly including a bullet and a pellet, which may be loaded into the muzzle of a rifle as a single unit.

A fixed round of ammunition for a muzzle loader firearm. The round has a bullet within a sabot that is engaged to a consumable cartridge case. The case is filled with propellant that is precisely calibrated to provide optimal ballistic properties with the particular bullet it is engaged to. The consumable cartridge case can be more tailored to respectively increase or decrease the burn rate of the consumable cartridge case. The consumable cartridge case can be constructed out of nitrocellulose or other energetic materials. A wide range of propellant formulas can be used that are safe because the burn rate is precisely calibrated for the bullet used. The propellant can contain pyrotechnic material and/or other ingredients to reduce the burn rate of a smokeless propellant and can contain a stabilizer to increase the shelf life of the ammunition round.

A method and work tool for inserting predetermined breaking points in a ring-shaped holding- and sealing band of a sabot cage projectile with an impact sabot cage are provided, wherein the band is arranged on a partial area of a receptacle device segmented through at least two longitudinal slits. The receptacle device connects the propelling element to the guiding cage of the impact sabot cage, and the guiding cage is segmented through at least two longitudinal slits. After mounting the band on the receptacle device, but before installation of the guiding cage in the area of the holding- and sealing band covering the longitudinal slits of the receptacle device, notch-shaped predetermined breaking points are inserted in the holding- and sealing band from inside of the band with the aid of a work tool, wherein longitudinal slits of the receptacle device are used for lateral guiding of the work tool.

A rotatable light-gas gun device relates to a light-gas gun and aims at solving the problems of an existing screw rod type rotatable light-gas gun that the utilization is inconvenient, the rotary speed is slower, the working efficiency is lower and the adaptability is poor. The rotatable light-gas gun device comprises a gas chamber, and further comprises an emission tube, a sabot separation device, a supporting platform, a bidirectional hydraulic oil cylinder, a base bracket, an angle transducer and two tachometers, wherein the gas chamber, the emission pipe and the supporting platform are located above the base bracket; the gas chamber and the emission pipe are fixedly arranged on the upper surface of the supporting platform; the sabot separation device comprises a sleeve bucket and a tapered cylinder which are integrally molded; one end of the emission pipe and the gas chamber are communicated and are detachably connected; the other end of the emission pipe is connected with the sleeve bucket; the tapered cylinder is arranged in the emission pipe; the angle transducer is mounted on the base bracket; one end of the bidirectional hydraulic oil cylinder is rotationally connected with one end of the supporting platform, and the other end of the bidirectional hydraulic oil cylinder is rotationally connected with the base bracket. The rotatable light-gas gun device is used for the fields including space vehicles or material performance researches and the like.

The present invention discloses a reduced energy training cartridge for use in a straight blowback operated firearm having a barrel with firing chamber, the cartridge comprising a cartridge case being defined by a rear portion with an external groove, a front portion having a velocity reduction structure and a wall with an outer surface and an inner surface, a sabot slideably engaged within the cartridge case, the sabot having a rear portion with an outside diameter substantially equal to the inside diameter of the inner surface of the cartridge case and which contains a gas sealing and braking structure and a primer disposed in the rear portion of the cartridge case where, upon percussion of the primer, the cartridge case rapidly slides relative to the sabot until such point when the velocity reduction structure of the cartridge case engages with the sealing and braking structure of the sabot, thereby stopping further movement of the cartridge case relative to the sabot, The present invention also contemplates using a metallic case in combination with a non-metallic or polymer sabot.