Abstract: A cartridge with a bullet has desirable penetration capabilities and controlled separation of components upon terminal impact. In embodiments of the invention, the bullet comprises a forward component, a lead core, and a copper jacket. The bullet having a forward nose portion with a plurality of cutaways spaced circumferentially about the nose portion. The copper jacket having a leading edge portion positioned at the cutaways.

Abstract: A shunt-enhanced decompression and pulsation trap (SEDAPT) for a screw compressor assists internal compression (IC), reduces gas pulsation and NVH (Noise, Vibration & Harshness), and improves off-design efficiency, without using a slide valve and/or a serial pulsation dampener. The SEDAPT includes an inner casing, e.g., an integral part of the compressor chamber, and an outer casing, e.g., surrounding part of the inner casing near the compressor discharge port, forming at least one diffusing chamber with an outflow orifice or nozzle equipped with an ODV (one-direction valve) at the outflow exit and a feedback region that provides a feedback outflow loop between the compressor chamber and the compressor discharge port. The SEDAPT automatically bleeds or compensates cavity pressure to meet different outlet pressures, eliminates or reduces energy waste, gas pulsations and NVH associated with any over-compression and under-compression before the discharge port opens.

Abstract: One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash hole positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface.

Abstract: A cartridge with a bullet has desirable penetration capabilities and controlled separation of components upon terminal impact. In embodiments of the invention, the bullet comprises a forward component, a lead core, and a copper jacket. The bullet having a forward nose portion with a plurality of cutaways spaced circumferentially about the nose portion. The copper jacket having a leading edge portion positioned at the cutaways.

Abstract: The present invention provides polymer ammunition having a primer insert having: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.02 to 0.2; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.02 to 0.18 inches and the second segment has a second segment distance from 0.02 to 0.

Abstract: The present invention provides polymer ammunition having a primer insert having: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.02 to 0.08; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.05 to 0.09 inches and the second segment has a second segment distance from 0.05 to 0.

Abstract: Nonlethal cartridges adapted to be chambered in a firearm having a barrel that includes rifling are provided. In one example, the cartridge includes a cartridge case and a sabot that is telescopically coupled to the cartridge case and that has a sabot mouth. A projectile includes a polymer base projectile portion disposed in the sabot mouth. A polymer front shell projectile portion is coupled to the polymer base projectile portion and has an outer surface that includes a circular locking rib feature that forms an interference fit with the sabot mouth. The polymer base projectile portion is configured to engage the rifling of the barrel to impart spin stabilization to the nonlethal projectile when propelled from the sabot in response to the expansion of a propellant gas.

Abstract: Method of fabricating a dummy practice ammunition round to dynamically match behavior of an existing live ammunition round during manually cycling of the action, or other demonstration. A dummy practice ammunition round of identical contour is formed, having a center of gravity (mass) in the same position as on the existing live ammunition round. Weight is matched by removing or omitting material through coring into the case head of the round or by hollowing it out.

Abstract: Ammunition cartridge comprising a rigid casing including a tubular sleeve and a base closing an end of the casing, a projectile mounted at another end of the casing, a propellant charge contained inside the casing, and an ignition device. The ignition device comprises an ignition charge arranged to ignite the propellant charge at a point of ignition distal from the base and proximal the projectile.

Abstract: The present invention provides a method of making a subsonic ammunition cartridge having a polymeric casing body having a generally cylindrical hollow polymer body having a body base at a first end thereof and a mouth at a second end to define a propellant chamber; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber, wherein the propellant chamber has an internal volume that is at least 10% less than the open internal volume of a standard casing of equivalent caliber; and a primer insert positioned in the body base and in communication with the propellant chamber.

Abstract: The present invention provides a color coded polymeric ammunition cartridge comprising: a polymeric bullet-end upper portion comprising a first polymer composition, connected to a polymeric middle body comprising a second polymer composition, wherein the first polymer composition, the second polymer composition or both comprise one or more pigments to provide an indicia.

Abstract: A conducted electrical weapon (“CEW”) impedes locomotion of a human or animal target by providing a stimulus signal through one or more electrodes and through the target. The CEW includes a handle and one or more removable deployment units coupled to the handle. A deployment unit may include a wad, a tensioner, a guide, and posts to improve accuracy of launch of electrodes form the deployment unit.

Abstract: The present invention provides a subsonic ammunition including a polymeric casing body; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber; a propellant disposed and confined within the propellant chamber; a primer insert positioned at the body base and in communication with the propellant chamber; a primer and diffuser disposed in the primer insert in combustible communication with the propellant; and a projectile frictionally fitted in the mouth in combustible communication with the propellant.

Abstract: The present invention provides a subsonic ammunition including a polymeric casing body; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber; a propellant disposed and confined within the propellant chamber; a primer insert positioned at the body base and in communication with the propellant chamber; a primer and diffuser disposed in the primer insert in combustible communication with the propellant; and a projectile frictionally fitted in the mouth in combustible communication with the propellant.

Abstract: The present invention provides a subsonic ammunition including a polymeric casing body; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber; a propellant disposed and confined within the propellant chamber; a primer insert positioned at the body base and in communication with the propellant chamber; a primer and diffuser disposed in the primer insert in combustible communication with the propellant; and a projectile frictionally fitted in the mouth in combustible communication with the propellant.

Abstract: The present invention is an improved .30 caliber cartridge that overcomes the limitations of the prior art by providing a centerfire cartridge with a case having a head with a rim, a body extending from the head to a tapered shoulder to a mouth that seats a bullet. The cartridge having a dimension that is short enough to fit in an automatic pistol's magazine and when fired from such a pistol's barrel will achieve ballistics closely resembling that of a rifle carbine.

Abstract: The present invention is an improved .30 caliber cartridge that overcomes the limitations of the prior art by providing a centerfire cartridge with a case having a head with a rim, a body extending from the head to a tapered shoulder to a mouth that seats a bullet. The cartridge having a dimension that is short enough to fit in an automatic pistol's magazine and when fired from such a pistol's barrel will achieve ballistics closely resembling that of a rifle carbine.

Abstract: A cartridge with a bullet has desirable penetration capabilities and controlled separation of components upon terminal impact. In embodiments of the invention, the bullet comprises a forward component, a lead core, and a copper jacket. The bullet having a forward nose portion with a plurality of cutaways spaced circumferentially about the nose portion. The copper jacket having a leading edge portion positioned at the cutaways.

Abstract: The present invention provides a subsonic ammunition including a polymeric casing body; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber; a propellant disposed and confined within the propellant chamber; a primer insert positioned at the body base and in communication with the propellant chamber; a primer and diffuser disposed in the primer insert in combustible communication with the propellant; and a projectile frictionally fitted in the mouth in combustible communication with the propellant.

Abstract: Sabots and riders are described herein that have high torsional stiffness, providing for utility in high-speed projectiles. The sabots include multiple petals with a closed configuration comprising polymer or metal containing composites. Corresponding systems and methods also are disclosed.

Abstract: An apparatus, method and system to electrically ignite small explosive cartridges in boulders, bedrock, concrete etc. to split or shape them. A propellant or explosive charge is electrically ignited directly by an inert electrical igniter inserted therein that melts at high temperature a bridge wire(s) or ribbon(s) with AC or DC electrical current. The bridge melts normally at over 2,000 degrees F. which will ignite the propellant or explosive. With sufficient voltage and amperage such as 110 volt AC wall current ionization takes place along the pathway of the melting bridge, which melts at approximately 2,000 degrees F., and a large electrical arc forms at approximately 5,000 degrees F. that more reliably ignites the propellant or explosive with increased blast power. A reusable blasting rod includes an external groove for a blasting wire, a counterweight for better tamping, which has a cradle for heavy objects to utilize the Newton Kinetic effect.

Abstract: The present invention provides a single piece polymer ammunition cartridge and polymer ammunition and methods of forming a single piece polymer ammunition cartridge and polymer ammunition.

Abstract: Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel.

Abstract: A cartridge case with a case crush region that facilitates an additional amount of case crush in the axial direction, per unit of input force and energy, as compared to an identical cartridge case without such a region. The crush region may conceivably be either of a fully or partially circumferential nature with applicability to any style cartridge case, be it bottleneck or straight-walled and of any rim configuration (rimmed, semi-rimmed, rimless, rebated-rim, belted) and without prejudice to the case material (brass, stainless steel, polymer, etc.). This feature may be incorporated into the design of existing cartridge cases as well as future designs.

Abstract: A cartridge with component bullet has desirable penetration capabilities and controlled separation of components upon terminal impact. In embodiments of the invention, the cartridge comprises a component, a lead core, and a copper jacket. The lead jacket having a leading edge portion that exposes the cutaways. The component bullet may have a forward pointed ogive portion with cutaways spaced circumferentially.

Abstract: Systems, devices, and methods including a bullet; a retroreflector array adhered to a base of the bullet, the retroreflector array having prism facets with a periodicity between 0.2 mm-2.0 mm; and a cover disposed over the retroreflector array and hermetically sealed at the base of the bullet; where the cover is disposed over the retroreflector array in a first position prior to firing, and where the cover is released from the base of the bullet in a second position after firing.

Abstract: A radio frequency (RF) antenna assembly configured to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery may include an RF transmission line and an RF antenna coupled to the RF transmission line. The RF antenna assembly may also include an adjustable balun that may include a tubular balun housing surrounding the RF transmission line and defining a space therebetween. The adjustable balun may further include an adjustable shorting body slidably movable within the space and contacting the tubular balun housing and the RF transmission line at an adjustable shorting position.

Abstract: Provided is an emulsion explosive composition having voids/bubbles formed from one or more noble gases dispersed therein. Also provided is a method of manufacturing an emulsion explosive composition that includes mechanically and/or pneumatically infusing an emulsion explosive composition with a noble gas so as to create voids/bubbles formed from one or more noble gases. The noble gases can be contained within closed-cell micro-spheres that are dispersed throughout the emulsion explosive composition.

Abstract: The invention relates to a countermass propulsion system for shoulder-launched munitions, recoilless rifles, rockets and similar class weapon systems, fired from an enclosure and utilizing a Davis Gun propulsion system by accelerating a projectile in one direction and a countermass in the opposing direction to minimize recoil, light signature and acoustic signature of the weapon system.

Abstract: The present invention provides a method of making a subsonic ammunition cartridge having a polymeric casing body having a generally cylindrical hollow polymer body having a body base at a first end thereof and a mouth at a second end to define a propellant chamber; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber, wherein the propellant chamber has an internal volume that is at least 10% less than the open internal volume of a standard casing of equivalent caliber; and a primer insert positioned in the body base and in communication with the propellant chamber.

Abstract: The present invention provides a smoke screen generator with a high diffusion rate of a smoke screen. Ends at both sides of a cylindrical housing are closed by a first closure 20 and a second closure 30 respectively, and a flow path changing member 60 is attached at an interval in an axial direction from the second closure 30. At the time of actuation, a smoke screen source passes through a smoke screen source discharge port 38, first discharge flow paths 44, 45 and 46, and a second discharge flow path 47 and is discharged from a final discharge port 48. Since the smoke screen source is radially discharged from the final discharge port 48, a diffusion rate of a smoke screen increases.

Abstract: The present invention provides a subsonic ammunition cartridge including a polymeric casing body comprising a generally cylindrical hollow polymer body having a body base at a first end thereof and a mouth at a second end to define a propellant chamber; a propellant insert positioned in the propellant chamber to reduce the internal volume of the propellant chamber, wherein the propellant chamber has an internal volume that is at least 10% less than the open internal volume of a standard casing of equivalent caliber; and a primer insert positioned at the body base and in communication with the propellant chamber.

Abstract: A bottleneck cartridge chamber wherein a circumferential relief recess is placed within the shoulder region of the chamber. As opposed to the continuous angled shoulder of conventional cartridge chambers, the proposed relief recess is envisioned as an angular segment of larger included angle than the conventional chamber shoulder angle (thereby creating a compound angle cartridge chamber shoulder region) or a radial recess that would eliminate a portion of the conventional chamber shoulder.

Abstract: A projectile includes a toughened polymer resin, a curative agent and a particulate filler. The curative agent cures the toughened polymer resin. The particulate filler is distributed throughout the resin. The particulate filler has a density greater than a density of the resin. The particulate filler can be 70 to 80 percent by weight of the total projectile composition. The particulate filler can include at least one of copper, tungsten, lead, iron and steel. The projectile has an average density that is less than the density of lead. Additionally, the toughened polymer resin can be 20 to 30 percent by weight of the total projectile composition.

Abstract: Cartridge ammunition (10) including a projectile (12) and a cartridge case (14). The cartridge includes a primer chamber (26) located adjacent a base wall (24) for holding a primer (28), a high pressure chamber (30) for holding a propellant charge (32), an intermediate pressure chamber (34) which surrounds the high pressure chamber, for receiving expanding propellant gases from the high pressure chamber and a low pressure chamber (36) at a rear end of the projectile for receiving expanding propellant gases from the intermediate pressure chamber. The pressure chambers are delimited by walls defining venting hole through which expanding gases can flow. The three pressure chambers provide for controlled release of gas pressure resulting in attenuation of peak gas pressures within the cartridge.

Abstract: A system in accordance with present embodiments includes a ground controller and an unmanned aerial vehicle including communications circuitry configured to transmit signals to and receive signals from the ground controller. The system may also include a vehicle controller configured to execute a flight plan and at least one special effects module. The system may also include a special effects module controller configured to cause the special effect to be activated in response to an activation signal from the ground controller.

Abstract: The present invention provides a metal injection molded ammunition cartridge comprising a molded metal bottom portion comprising a primer recess in communication with a primer flash hole that extends into a propellant chamber; a molded metal top portion comprises a projectile aperture at a first end and mates to the molded metal bottom portion at a second end to enclose the propellant chamber; and a neck to connect the transition from the projectile aperture to the diameter of the propellant chamber.

Abstract: The invention relates to fragmenting projectiles. In order that all projectiles of a*waffe*Bug projectile type have the same point of impact, i.e.

Abstract: A sensor position control apparatus and method that includes a guide rail formed to be elongated along one direction set to a longitudinal direction thereof and a position control unit coupled to the guide rail and configured to slide along the longitudinal direction of the guide rail. A sensor mount unit is connected to be moved together with the position control unit and has a sensor mounted on one surface thereof. In addition, an angle control unit is configured to change a direction which one surface of the sensor mounting unit faces and a position control driving unit is configured to transmit power to the position control unit. An angle control driving unit is configured to transmit power to the angle control unit.

Abstract: The invention relates to a cartridge having a projectile, and a case which is mounted on the projectile from behind and which has a case mouth at the front end, wherein the projectile has a tip, and at the rear this tip merges into a circumferential front guide band which defines the outside diameter of the projectile, and directly adjoining this front guide band in the direction of the projectile base, a circumferential case mouth receiving space which extends in the axial direction of the projectile and in which the case mouth engages is situated in the projectile. In order to reduce the twistless freebore to a minimum and build up the gas pressure early during firing, it is proposed that an exposed portion of the case mouth receiving space extending in the axial direction of the projectile is situated between the front guide band and the case mouth; i.e., the case mouth does not completely fill the case mouth receiving space in the direction of the nose of the projectile.

Abstract: The present invention relates to stackable projectiles having a warhead and a propulsion unit. An adaptor enables the warhead to be coupled to propulsion units made of different materials. Furthermore, an adaptor couples different profiles of warheads and propulsion units and allows projectiles to be stacked without need for design modifications. The assembled projectile can be fired electrically or mechanically.

Abstract: The present embodiment relates to a guided missile launch system comprising a launch tube with a guided missile space for receiving a guided missile and with a cartridge space for receiving a blank cartridge, further comprising a handle piece mountable on the launch tube and separable from the launch tube, the handle piece having a striking pin system for firing the blank cartridge.

Abstract: It is possible to feed an injection objective substance to a depth of a skin structure of an objective living body without using any injection needle. A syringe having no injection needle comprises an enclosing unit which encloses the injection objective substance, a pressurizing unit which pressurizes the injection objective substance enclosed in the enclosing unit, and a flow passage unit which defines a flow passage so that the injection objective substance, which is pressurized by the pressurizing unit, is allowed to inject to an injection target area.

Abstract: Ammunition cartridges for hunting big game with an AR15 rifle are provided while maintaining a size of the ammunition cartridge that permits multiple ammunition cartridges to be inserted into an AR15 rifle magazine in alternating side by side relation. Each cartridge has a rim diameter of 0.422 inches, extractor groove and a slight tapered main body base of 0.36°. In one embodiment, the main base body extends to form a cartridge with total length of 1.8 inches and nominal body taper of 0.020 inches to accept a bullet with a diameter of 0.400 inches. In other embodiments, the main body base extends to a shoulder and a neck to form a cartridge with a total length of 1.66 inches. The shoulder tapers to the neck at a 35° angle with a nominal body taper of 0.014 inches. These embodiments accept bullets with diameters of 0.277, 0.284 and 0.308 inches.

Abstract: A cartridge with a composite cartridge case includes a projectile with an ogee-shaped tip and a bottom end ending in a base, a flangeless tubular case delimiting a chamber accommodating a propulsive powder, closed at a first longitudinal end by a base with a primer and at the second end opposite to the first, by the base of the projectile, a part of the flangeless tubular case fitting snugly around part of the projectile and having itself, at least in part, a frustoconical external shape, the cartridge being characterized in that: —the chamber accommodating the propulsive powder includes, at the projectile end, a reduction in its diameter over all or part of the periphery thereof down to the diameter of the base of the projectile, —the ratio between the length of the tip of the projectile and the maximum diameter thereof is greater than or equal to 2.9.

Abstract: The invention relates to a weapon intended for fighting games, mainly for paintball, namely to special cartridges containing painting liquid. The special cartridge contains a cartridge case 1 that includes a propellant charge 2, a projectile 3 and a primer cap 4. The cartridge case 1 has inside a rigidly fixed nozzle 5 (variants 1, 3) for supplying a portion of the gas stream at the projectile 3 or a solid partition 7 (variant 2). The cylindrical cartridge case body 1 is provided with holes 6 on the side of the primer cap 4 that are intended to direct the gas flow (variants 1-3); in addition, the mouth of the cartridge case is also provided with holes 8 for directing the gas flow (variants 2, 3). The areas of the holes of the nozzle 5 and the total surfaces of the holes 6 and 8 are of different size.

Abstract: The invention relates to a weapon intended for fighting games, mainly for paintball, namely to special cartridges containing painting liquid. The special cartridge contains a cartridge case 1 that includes a propellant charge 2, a projectile 3 and a primer cap 4. The cartridge case 1 has inside a rigidly fixed nozzle 5 (variants 1, 3) for supplying a portion of the gas stream at the projectile 3 or a solid partition 7 (variant 2). The cylindrical cartridge case body 1 is provided with holes 6 on the side of the primer cap 4 that are intended to direct the gas flow (variants 1-3); in addition, the mouth of the cartridge case is also provided with holes 8 for directing the gas flow (variants 2, 3). The areas of the holes of the nozzle 5 and the total surfaces of the holes 6 and 8 are of different size.

Abstract: Apparatus and methods for manufacturing subsonic ammunition articles from conventional supersonic ammunition articles are provided. The apparatus includes devices for controllably introducing a filler material to reduce the inner volume of a conventional supersonic ammunition article. Method are also provided for converting a conventional supersonic ammunition article to a subsonic ammunition article including defining a new subsonic propellant volume within said conventional supersonic ammunition article and controllably introducing a filler material therearound.

Abstract: A projectile launcher includes a barrel, a high pressure chamber included within the barrel, and a low pressure area included within the barrel and substantially surrounding the high pressure chamber. The high pressure chamber includes an inner cavity and multiple vent holes connecting the inner cavity to the low pressure area so that high pressure gases generated in the inner cavity by a pressure cartridge can pass from the inner cavity to the low pressure area and propel a round (or projectile) out of the launcher.

Abstract: An ammunition round includes a slug having a cylindrical body portion and a slug casing having a cylindrical body with an open top end, a closed bottom end, and an interior cavity extending therebetween. The interior cavity is configured for receiving at least a portion of the cylindrical body portion of the slug. At least one groove extends circumferentially around at least a portion of one of the cylindrical body portion of the slug and the interior cavity of the slug casing. At least one projection extends circumferentially around at least a portion of the other of the cylindrical body portion of the slug and the interior cavity of the slug casing. The at least one projection is configured for being received within at least a portion of the at least one groove.