| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 102464000 | Case | 67 |
| 20090025597 | VARIABLE RANGE AMMUNITION CARTRIDGE FOR ELECTRICAL DISCHARGE WEAPON - An ammunition cartridge for an electrical discharge weapon having at least one dart positioned within a dart chamber in the housing. The cartridge has at least one adjustable barrel for selection between close and extended ranges and a joint and port for adjusting pressure in the barrel. In another form the cartridge has two fixed barrels and a retractable deflection ramp for selection between close and extended ranges. | 01-29-2009 |
| 20090308274 | Integrated Pusher Plate for a Canister- or Gun-Launched Projectile and System Incorporating Same - A pusher plate assembly for launching a projectile includes a pusher plate, a pressure seal circumferentially extending about the pusher plate, a cage extending from an aft side of the pusher plate, and a plurality of propellant portions disposed in the cage. A projectile system includes a launching tube, a projectile disposed in the launching tube, a pusher plate assembly disposed between an aft end of the projectile and the launching tube, a fuze, a charge igniter operatively associated with the fuze and the plurality of propellant portions, and a retainer disposed within the launching tube proximate a mouth of the launching tube. The pusher plate assembly includes a pusher plate, a pressure seal circumferentially extending about the pusher plate to seal an annulus between the pusher plate and the launching tube, a cage extending from an aft side of the pusher plate, and a plurality of propellant portions disposed in the cage. | 12-17-2009 |
| 20110023742 | PRESSURE SEAL - A seal is provided that restricts movement of adjacent parts when in a high pressure environment while allowing relative movement of adjacent parts when in non-high pressure environment. | 02-03-2011 |
| 20110174187 | Door breaching projectile system - A modified 40 mm grenade round designed to breach doors without throwing a substantial amount of shrapnel into a building's interior. The modified round includes a standoff device located on its forward end. The standoff device detonates the explosive charge within the projectile before the nose of the projectile actually strikes the target. This early detonation throws a pressure wave again the door's exterior, forcing the door inward. Shrapnel produced by the detonation remains primarily outside the door. Thus, the modified projectile is able to blow open a door without throwing a significant amount of shrapnel into a building's interior. | 07-21-2011 |
| 20110174188 | Rifle and Handgun Cartridge - A rifle or handgun cartridge is formed to have an overall length of about 2.260 inches, or 57.4 millimeters. The shell case has a case length between 1.550 inches and 1.650 inches and a neck forming a mouth for a standard .224 caliber bullet. The shoulder adjoining the neck widens from the neck to a diameter of between 0.400 inches to 0.415 inches, and preferably 0.4059 inches. The adjoining shell body forms the main powder chamber for receiving an explosive charge. A head adjoins the shell body and forms a base of the shell case. The head has a primer pocket formed therein communicating with the main powder chamber through a vent hole formed between the primer pocket and the main powder chamber. | 07-21-2011 |
| 20110214583 | Improved Firearm Cartridges and Delivery System - The present invention includes a modular cartridge system for firearms. The system includes a plurality of cartridges that each having a base, a rim, a case, and a projectile coupled to the case. Each cartridge of the system includes base and rim dimensions that are functionally equivalent to each other, projectile diameters that are variable between 0.220 inches and 0.4050 inches, and case lengths that are variable between 0.500 inches and 2.000 inches. | 09-08-2011 |
| 20120012024 | Contoured Thickness Blank for Ammunition Cartridges - An austenitic stainless steel ammunition cartridge includes an outer region and a base, wherein the outer region is about 50%-80% of the thickness of the base, which serves to minimize the sidewall ironing required to form the cartridge. The cartridge blank can be formed by spin forming, compression forming, grinding, or a combination thereof. Tooling to form the insert can include at least a pair of blocks and inserts, at least one insert defining a centrally positioned aperture. | 01-19-2012 |
| 20120037029 | HIGH VISIBILITY AMMUNITION CASINGS - Ammunition casings are described that include a base, a body coupled to the base, and one or more patterns on the body. | 02-16-2012 |
| 20120174813 | MODULAR CASE AMMUNITION AND METHODS OF ASSEMBLY - A hybrid ammunition cartridge for a firearm is includes a substantially cylindrical casing defining a body portion having a neck at a forward end and a base at a rearward end, the base including a rim. A projectile is mounted in the neck. Brass is used in the casing at the neck to hold the projectile at the proper crimp. Brass is also used in the rim to house the primer and to provide a surface at which a hook or any suitable mechanism can be used to extract the cartridge from the firearm. The remaining body portion is then manufactured from a composite material having suitable mechanical properties. | 07-12-2012 |
| 20120204751 | CARTRIDGE ASSEMBLY HAVING AN INTEGRATED RETENTION SYSTEM - A cartridge assembly for large bore gun systems having an integrated retention assembly for maintaining propellant charges within the cartridge case. The cartridge case having an interior space for receiving propellant charges and an open proximate end through which the propellant charges can be fed. An insulating sleeve defining an interior channel is affixed to the cartridge case and extends out of the proximate end of the cartridge case. The interior channel serves as a chute through which propellant charges can be fed. After the propellant charges are loaded, the insulating sleeve is crimped closed to retain the propellant charges within the cartridge case. A closure plug can be inserted into the proximate end of the cartridge case after the insulating sleeve is crimped closed. | 08-16-2012 |
| 20120285345 | ALUMINUM CARTRIDGE CASING FOR RIFLES - A cartridge casing for rifles is made from a high strength aluminum alloy. A method for making such cartridge casing includes the steps of (a) forming a cylindrical blank from an aluminum alloy having a tensile strength greater than 80,000 psi, and (b) rotating the blank at a rate greater than 500 rpm and forcing the blank into a die, the die having a bore with progressively reduced interior diameters which are less than the external diameter of the blank. In the method, the forcing of the blank into the die results in the finished cartridge casing having a distal end with an external diameter which is less than the external diameter of its proximal end. | 11-15-2012 |
| 20130305950 | Cartridge with Rapidly Increasing Sequential Ignitions for Guns and Ordnances - A cartridge may be loaded with a powder column containing stratified, stacked layers of propellant, each powder layer over-compressed to a specified degree, with the burn rate controlled by the specified degree of over-compression applied to each respective powder layer. The application of a highly compressed powder column reduces the burn rate, and may force one or more of the powder layers to launch with the projectile down the barrel. Accordingly, the powder column is forced to burn in a manner similar to fuel burning in a solid fuel rocket engine. This greatly reduces the pressure(s) developed in the chamber, and permits the force of the burning powder to be efficiently focused on forward propulsion. The rapidly increasing set of sequential ignitions provides higher and higher energy densities with each subsequent ignition, and creates a more uniform linear acceleration of the projectile for the full length of the target barrel. | 11-21-2013 |
| 20140083319 | PRECISION FORGED CARTRIDGE CASE - An improved cartridge case completely produced net shape on a progressive cold former that includes a trim to lengthy station with an internal shearing tool. | 03-27-2014 |
| 20140261044 | Bullets With Lateral Damage Stopping Power - Ammunition which includes a bullet having an effective caliber that is larger than its nominal caliber, comprised of a bullet body with a longitudinal cavity in the forward end, and one or more bores extending from the cavity to bore openings on the exterior of the bullet. In use, target media is gathered in the cavity and ejected under force through the bore openings, increasing the damage done by the bullet. Preferably, the bullet cavity and bores are filled with a polymeric or elastomeric material. | 09-18-2014 |
| 20150020706 | HIGH VISIBILITY AMMUNITION CASINGS - Ammunition casings are described that include a base, a body coupled to the base, and one or more patterns on the body. | 01-22-2015 |
| 20150292846 | ARTICLES OF ORDNANCE INCLUDING REACTIVE MATERIAL ENHANCED PROJECTILES, AND RELATED METHODS - A munition, such as a projectile formed of at least one reactive material. In one embodiment, the projectile includes a body portion formed of at least one reactive material composition wherein the at least one reactive material composition defines at least a portion of an exterior surface of the projectile. In other words, a portion of the reactive material may be left “unbuffered” or exposed to the barrel of a gun or weapon from which it is launched and similarly exposed to a target with which the projectile subsequently impacts. In one embodiment, the projectile may be formed with a jacket surrounding a portion of the reactive material to provide additional structural integrity. The projectile may be formed by casting or pressing the reactive material into a desired shape, or the reactive material may be extruded into a near-net shape and then machined into the desired shape. | 10-15-2015 |
| 20150308797 | Ammunition Cartridge - An ammunition cartridge has a casing and a bullet. The casing has a tubular body closed at one end and attached at the other end to the bullet. An internal surface of the casing attached to the bullet is provided with a coating of copper oxide. The copper oxide may be black, for example black cupric oxide. The coating can result in a more consistent and reliable separation of the bullet from the coated casing compared to an uncoated casing and this can assist the accuracy of the ammunition. | 10-29-2015 |
| 20160003586 | Munition Having A Reusable Housing Assembly and A Removable Powder Chamber - A reusable shell casing having a housing with exterior grooves having a substantially central bore with a tapered end capable of receiving a payload and an opposite threaded end adapted to receive a novel reusable high pressure chamber assembly containing a removable powder chamber, a burst disk, and a threaded insert. The chamber assembly has a central bore having an upper bore portion that is cylindrically shaped having a threaded surface adapted to secure to the threaded portion of a threaded insert. The central bore also has a lower bore portion that is cylindrically shaped having a surface that is adapted to closely contour the circumference of the removable powder chamber. The powder chamber has a primary end having a primary opening adapted to receive a propellant located opposite a secondary end having a protrusion. The protrusion has a secondary opening adapted to receive a primer. | 01-07-2016 |
| 20160054105 | Firearm Ammunition Case Insert - A firearm ammunition cartridge comprises a case having a substantially tubular body portion, an open leading end, and a trailing end defining a primer port. An insert is received within the case and extending along the body portion. The insert has an exterior surface conforming to an interior surface of the body portion and a central cavity extending along an axial dimension of the insert. The central cavity opens to the primer port at the trailing end of the case and to a leading end of the insert. A quantity of gunpowder is disposed within the central cavity, and a projectile is received and retained within the leading end of the case. The gunpowder is confined to a chamber comprising at least a portion of the central cavity between said case trailing end and the projectile. | 02-25-2016 |
| 20160131461 | COATED SUBSTRATE SYSTEMS AND METHODS - An apparatus, comprising: a substrate configured into a casing, a propellant configured between a projectile positioned/configured within the casing and an end of the casing, the propellant configured to expand upon a firing event and project the projectile from the casing; and a coating comprising a conformal coating layer having a particulate boron nitride dispersed therein, wherein the coating is configured to cover at least one of the inner sidewall and the outer sidewall, such that at least one side of the substrate is covered by the coating. | 05-12-2016 |
| 20160252332 | CARTRIDGE | 09-01-2016 |
| 20180023930 | Firearm Ammunition Case Insert | 01-25-2018 |
| 102465000 | Nonmetallic | 32 |
| 102466000 | Plastic cases | 32 |
| 20090044717 | BASE FOR A CARTRIDGE CASING BODY FOR AN AMMUNITION ARTICLE, A CARTRIDGE CASING BODY AND AN AMMUNITION ARTICLE HAVING SUCH BASE, WHEREIN THE BASE IS MADE FROM PLASTIC, CERAMIC, OR A COMPOSITE MATERIAL - An apparatus for manufacturing an ammunition article, includes forming a projectile of an ammunition article at a first station of an apparatus, transporting the projectile within the apparatus to a second station of the apparatus, and injection molding at the second station a cartridge casing body of the ammunition article around at least a portion of the projectile. | 02-19-2009 |
| 20110290143 | CARTRIDGE - The invention relates to a cartridge having a propellant charge casing at least partially filled with a propellant charge powder, and a projectile part connected on a front of the propellant charge casing, wherein the propellant charge casing comprises a casing cover, a casing sheath and a casing base, and the casing sheath is connected to the projectile part via the casing cover and to the casing base via a spring steel sheet. In order to achieve different amounts of propellant charge powder filled into the same propellant charge casing without igniting the propellant charge at undesirable blast waves, a sack-shaped container that is completely filled with the respective amount of propellant charge powder is disposed inside the propellant charge casing so that the container, and thus also the propellant charge powder, extends in the direction of the central longitudinal axis of the cartridge. | 12-01-2011 |
| 20120180687 | HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING FOR BLANK AND SUBSONIC AMMUNITION - A high strength polymer-based cartridge casing includes an upper component of polymer having a first end with a mouth, at least a wall between the first end and a second end of the upper component opposite the first end, a sleeve extending longitudinally and radially about the wall, and at least one of an overlap portion and an underskirt portion extending from the wall near the second end. The lower component is molded from a polymer and includes at least one of a tapered portion and an outer tapered portion that engages at least one of the overlap portion and the underskirt portions, respectively, to join the upper and the lower components. Further, the sleeve reduces a volume of a propellant chamber formed by the wall. The reduced volume of the propellant chamber permits only enough propellant to propel a bullet engaged in the cartridge casing at subsonic speeds. | 07-19-2012 |
| 20120180688 | HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING AND MANUFACTURING METHOD - A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can be have a frangible portion capable of being split upon discharge of a projectile. The shoulder can have unequal outside and inside shoulder angles. The casing can also include an insert having a rim at one end or a plurality of ribs extending longitudinally along a wall between the shoulder and the bottom of the cartridge and spaced radially from each other around a circumference of the wall. A projectile can be disposed in the mouth and a relief can be disposed on the neck near the mouth and projectile. The relief can form a gap between the neck and the projectile to receive an adhesive. | 07-19-2012 |
| 20140060372 | VARIABLE INSIDE SHOULDER POLYMER CARTRIDGE - A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. An inside of the shoulder can be shaped in at least one of a convex or concave shape. The shoulder can have unequal outside and inside shoulder angles. Further, the inside shoulder can be textured or coated. | 03-06-2014 |
| 20140069290 | POLYMER-BASED MACHINE GUN BELT LINKS AND CARTRIDGE CASINGS AND MANUFACTURING METHOD - An example of a polymer-based machine gun link can include a first side having a finger to hold a cartridge and a second side, opposite the first side, having at least two fingers to hold a second cartridge. A stem can join the first side and the second side the two fingers are smaller than the finger and spaced along the stem so that the finger fits between the two fingers. All of the finger, the two fingers, and the stem are made from polymer. | 03-13-2014 |
| 20140290522 | ADHESIVE LIP FOR A HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING AND MANUFACTURING METHOD - A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can have a frangible portion capable of being split upon discharge of a projectile. A projectile can be disposed in the mouth and a relief can be disposed on the neck near the mouth and projectile. The relief can form a gap between the neck and the projectile to receive an adhesive. | 10-02-2014 |
| 20140373744 | Base Insert for Polymer Ammunition Cartridges - An insert for a high strength polymer-based cartridge casing can include an outside, an inside formed within the insert, and a back end disposed at a rear of the cartridge casing. The back end includes a rim and groove disposed around the outside of the insert and a primer pocket disposed inside the back end. Also included is a front end, opposite the back end, having an overmolded area disposed around the outside of the insert above the primer pocket and a basin, having a depth, formed inside the overmolded area. A flash hole can be included inside the insert and communicating between the primer pocket and the basin. The flash hole has a perimeter and a ring disposed around the perimeter of the flash hole, including a height starting at a bottom of the basin, disposed toward the front end, and less than the depth of the basin. | 12-25-2014 |
| 20150047527 | FRANGIBLE PORTION FOR A HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING AND MANUFACTURING METHOD - A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can have a frangible portion capable of being split upon discharge of a projectile. A projectile can be disposed in the mouth. | 02-19-2015 |
| 20150316361 | NECK POLYMERIC AMMUNITION CASING GEOMETRY - Ammunition casings that have optimal external cartridge dimensions for polymeric cases are provided. Polymeric ammunition cartridges and casings are presented having a neck portion of the polymeric case dimensioned for optimal fit within a firearm chamber. The polymeric ammunition casing may include one or both of an extended neck region and an internal cannelure engaging portion. | 11-05-2015 |
| 20160003587 | POLYMER AMMUNITION CARTRIDGE HAVING A WICKING TEXTURING - One embodiment of the present invention provides a polymeric ammunition cartridge having wicking texturing. | 01-07-2016 |
| 20160003588 | POLYMER AMMUNITION HAVING A WICKING TEXTURING - One embodiment of the present invention provides a polymeric ammunition cartridge having a wicking texturing at the projectile aperture. | 01-07-2016 |
| 20160025464 | Subsonic Ammunition Casing - A subsonic ammunition cartridge casing having an engineered internal volume designed to allow for the introduction of precisely the amount of propellant necessary at precisely the desired location to reproducibly produce the desired projectile velocity and internal pressure is provided. The subsonic shell casing has an engineered internal propellant cavity built into the internal body of the casing itself that does not necessarily depend on the introduction of a separate volume reducing device such as tubing, filler, foam filler and the like. This ensures the integrity of the case, does not result in anything being expelled through the muzzle of the weapon other than the projectile, does not have any burning or combusting components, allows for very precise control of the internal volume and thus chamber pressure, and is economical to produce. | 01-28-2016 |
| 20160033241 | A POLYMER AMMUNITION HAVING A MIM PRIMER INSERT - One embodiment of the present invention provides a polymeric ammunition having a metal injection molded primer insert. | 02-04-2016 |
| 20160069653 | POLYMER CENTER FIRE CARTRIDGE CASE FOR SMALL OR MEDIUM CALIBER AMMUNITION AND METHOD FOR MANUFACTURING SAME - An engineered polymer center fire small or medium ammunition cartridge case and methods for manufacturing the same, wherein the engineered polymer material meets the internal & external ballistic standards set by the Sporting Arms and Ammunition Manufacturers Institute and military specifications for center fire rifle small or medium calibers of ammunition cartridges from 0.223 caliber to 30 mm caliber. The cartridge case may allow a projectile to snap into place in the cartridge case mouth after the case is primed and propellant powder is placed into the cartridge case during the cartridge loading process. The rifle cartridge case may be either a single-piece case suitable for use in pistols or a two-piece case suitable for use in rifles, and may be formed by either injection molding or an injection blow molding process. Injection blow molding allows a single piece design. Also disclosed are inventive engineered polymers for use in cartridges. | 03-10-2016 |
| 20160069654 | DESIGN AND METHOD FOR THE MANUFACTURE OF POLYMER CARTRIDGE CASE RIMFIRE SMALL ARMS AMMUNITION - A rimfire cartridge case may comprise a cylindrical case body, a case head disposed at a first end of the cylindrical case body, and a case mouth disposed at a second end of the cylindrical case body. The case head may have a circumference greater than a circumference of the cylindrical case body. The case head may comprise a hollow envelope configured to contain a priming mixture. The case mouth may be configured to mechanically engage a projectile. The cylindrical case body and the case head may be integrally formed in a single piece from a polymer material to define a chamber configured to hold a propellant and to contain a pressure generated by the propellant when the propellant is ignited by the priming mixture. Also disclosed are inventive engineered polymers for use in cartridges. | 03-10-2016 |
| 20160146585 | NARROWING HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING FOR BLANK AND SUBSONIC AMMUNITION - A high strength polymer-based cartridge casing includes a cartridge body, molded from a polymer, having a first end and an opposing second end, and enclosing a volume. A bullet is removably engaged with the first end and an insert is engaged to the second end. A shoulder portion is located proximate the first end and a propellant chamber formed in the volume. The propellant chamber has a first diameter proximate to the shoulder, a second diameter proximate to the insert and greater than the first diameter, and a linear slope disposed between the first diameter and the second diameter. | 05-26-2016 |
| 20160169641 | FRANGIBLE PORTION FOR A HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING AND MANUFACTURING METHOD | 06-16-2016 |
| 102467000 | With metal base or reinforcement | 14 |
| 20090314178 | LIGHTWEIGHT CARTRIDGE CASE - Disclosed is an ammunition cartridge case that includes a sleeve, a base fixedly attached to the sleeve and a fiber reinforced polymer composite annulus that is at least partially within the base. In certain embodiments, the sleeve and the base are formed partly or entirely from a metal, for example steel or stainless steel. The base has a central aperture that affords for the annulus ring to fit within. The annulus is dimensioned such that it fits securely within the central aperture of the base and has a center aperture wherein a primer can be located. The annulus ring contains a volume of composite fibers ranging from 10 to 90 volume percent. The annulus isolates the primer from the cartridge case and thereby prevents galvanic corrosion between the primer and case. In addition, a metallic foil can be present between the annulus and the cartridge case in order to assure proper securement of the annulus therewithin. | 12-24-2009 |
| 20100282112 | SPIRAL CASE AMMUNITION - A cartridge for a firearm comprises a case having a base located at one end and a projectile mounted at the other end. A specific volume of propellant is contained in the case and is ignitable via a primer located in the base. The ignition of the propellant causes the projectile to be propelled from the case. The case comprises a wall defining a plurality of circumferential flutes that extend around outer and inner surfaces of the case in a helical or vertical configuration. | 11-11-2010 |
| 20110179965 | AMMUNITION ASSEMBLY - Ammunition assemblies including ammunition cartridges are provided herein. According to some embodiments, ammunition cartridges may include a tubular casing having a first and a second end, wherein the tubular casing is at least partially constructed from a polymeric material, and wherein the tubular casing is adapted to receive and retain a propellant, a cap releaseably associable with the first end of the tubular casing, and a rim extending from the second end of the tubular casing, the rim and second end of the tubular casing cooperating together to form an extraction groove for receiving at least a portion of an extractor of a firearm. | 07-28-2011 |
| 20120024183 | Cartridge Base and Plastic Cartridge Case Assembly for Ammunition Cartridge - A cartridge for ammunition has a base with an axial end section. An annular wall extends from the enlarged outer peripheral lip section to an opposite end. The axial end section has a primer cavity therein and a radially outwardly extending peripheral extraction lip. An annular ledge is axially positioned at an inner end of said primer cavity and radially extends inwardly from said annular wall. A passage has a reduced diameter compared to the primer cavity and extends through the annular ledge. A main charge cavity is at an opposite side of the ledge from the primer cavity. A knurl section is on an outer surface of said cylindrical wall. A cartridge case is attached to the base about said knurl section. | 02-02-2012 |
| 20120111219 | LIGHTWEIGHT POLYMER AMMUNITION CARTRIDGE CASINGS - 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. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole. | 05-10-2012 |
| 20130014665 | AMMUNITION CASING - An ammunition article is provided which comprises a casing and a cap wherein the casing is formed from a polymeric material that has a room temperature notched Izod impact value greater than about 10 ft lbs/in and then has a ratio of notched Izod impact value at room temperature to notch Izod impact value at about −40° C. of less than about 4. | 01-17-2013 |
| 20130186294 | AMMUNITION CARTRIDGE CASE BODIES MADE WITH POLYMERIC NANOCOMPOSITE MATERIAL - The present invention is directed to a three-part ammunition cartridge casing body comprising a head or base portion, a case portion and a cap portion. The cartridge casing body further comprises: the base portion, made of metal or polymeric resin, having a closed end and an open end; a substantially cylindrical case portion, open on both ends, joined to the open end of the base portion and comprising a nanocomposite material of a nanoclay dispersed in a polyamide resin matrix; and a cap portion, made of a nanocomposite material of a nanoclay dispersed in a polyamide resin matrix and further comprising glass fibers, joined to the other end of the case portion, wherein the case portion is more ductile than the cap portion. | 07-25-2013 |
| 20140060373 | Subsonic Ammunition Casing - A subsonic ammunition cartridge casing having an engineered internal volume designed to allow for the introduction of precisely the amount of propellant necessary at precisely the desired location to reproducibly produce the desired projectile velocity and internal pressure is provided. The subsonic shell casing has an engineered internal propellant cavity built into the internal body of the casing itself that does not necessarily depend on the introduction of a separate volume reducing device such as tubing, filler, foam filler and the like. This ensures the integrity of the case, does not result in anything being expelled through the muzzle of the weapon other than the projectile, does not have any burning or combusting components, allows for very precise control of the internal volume and thus chamber pressure, and is economical to produce. | 03-06-2014 |
| 20140076188 | POLYMERIC AMMUNITION CASING GEOMETRY - An ammunition cartridge casing having a geometry designed to allow for the use of polymeric materials in forming the walls of the cartridge casing of an ammunition article, and methods of reusing such cartridges are provided. More specifically, the ammunition cartridge has a specified ratio between the wall-thicknesses of select portions of an ammunition article's cartridge casing such that polymeric materials may be used in the construction of the ammunition article cartridge casings. | 03-20-2014 |
| 20140216293 | CARTRIDGE BASE AND PLASTIC CARTRIDGE CASE ASSEMBLY FOR AMMUNITION CARTRIDGE - A cartridge for ammunition has a base with an axial end section. An annular wall extends from the enlarged outer peripheral lip section to an opposite end. The axial end section has a primer cavity therein and a radially outwardly extending peripheral extraction lip. An annular ledge is axially positioned at an inner end of said primer cavity and radially extends inwardly from said annular wall. A passage has a reduced diameter compared to the primer cavity and extends through the annular ledge. A main charge cavity is at an opposite side of the ledge from the primer cavity. A knurl section is on an outer surface of said cylindrical wall. A cartridge case is attached to the base about said knurl section. | 08-07-2014 |
| 20150033970 | ENGINEERED NECK ANGLE AMMUNITION CASING - Polymeric ammunition casings having engineered neck geometries, and methods of forming such ammunition are provided. In particular embodiments, both the internal and external neck geometries are engineered to provide even greater improvement of the accuracy and consistency of the ammunition. | 02-05-2015 |
| 20160003589 | LIGHTWEIGHT POLYMER AMMUNITION CARTRIDGE CASINGS - 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. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole. | 01-07-2016 |
| 20160003590 | POLYMER AMMUNITION CARTRIDGE HAVING A METAL INJECTION MOLDED PRIMER INSERT - 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. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole. | 01-07-2016 |
| 20160003601 | METAL INJECTION MOLDED PRIMER INSERT FOR POLYMER AMMUNITION - The present invention provides an injection molded primer insert for polymer ammunition comprising: a top surface opposite a bottom surface; a primer flash hole aperture positioned in the top surface extending through to the bottom surface; a substantially cylindrical coupling element extending away from the bottom surface forming an interior surface inside the substantially cylindrical coupling element and an exterior surface; a primer recess in the top surface that extends toward the bottom surface, a primer flash aperture 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, wherein the flange is adapted to receive a polymer overmolding. | 01-07-2016 |
| 102469000 | Breech end structure | 13 |
| 20100282113 | Systems And Methods Of A Cartridge For Conditional Activation - A weapon conditionally activates a cartridge. The cartridge has a projectile and a first mechanical feature. The weapon includes an activator and a station. The activator includes a second mechanical feature. The station positions the cartridge so that the first feature opposes the second feature. On condition that the first feature does not mechanically interfere with the second feature, the activator activates the cartridge to launch the projectile from the cartridge. On condition that the first feature mechanically interferes with the second feature resulting in an excess head space, the activator is inhibited by the excess head space from activating the cartridge. | 11-11-2010 |
| 20110192312 | A CARTRIDGE CASE AND A ROUND COMPRISING SUCH A CARTRIDGE CASE - A cartridge case intended for explosive materials. A releasable base plate is provided in a bottom section of the cartridge case. A base plate locking device includes a temperature dependent shape memory material. A space is provided partly in the bottom section of the cartridge case and partly in the base plate of the cartridge case defining a motion path inclined backwards for the shape memory material to follow when its passes a temperature such that the shape memory struggles to resume a former shape, resulting in that the base plate is unlocked from the bottom section of the cartridge case and released. A round of ammunition including the cartridge case. | 08-11-2011 |
| 20110192313 | CARTRIDGE CASE AND A ROUND COMPRISING SUCH A CARTRIDGE CASE - A cartridge case intended for explosive materials. A releasable base plate is provided in a bottom section of the cartridge case. A base plate locking device includes a temperature dependent shape memory material. The shape memory material of the base plate locking device is provided to exert a crushing force on the cartridge case at a temperature increase passing a temperature such that the shape memory material in question struggles to resume a former shape in order to break up the connection between the base plate and the bottom section of the cartridge case and release the base plate from the bottom section of the cartridge case. A round of ammunition includes the cartridge case. | 08-11-2011 |
| 20110252998 | CARTRIDGE AMMUNITION - The cartridge ammunition ( | 10-20-2011 |
| 20120060716 | CARTRIDGE CASES AND BASE INSERTS THEREFOR - A base insert for a cartridge case comprises a base end having a lip and a groove proximate the lip and having a primer pocket defined in the base end and an insert end having a base wall and a cylindrical wall extending there from, the base wall and cylindrical wall defining a powder fill pocket. The base wall has a flash hole disposed therein and an inner surface facing the powder fill pocket. The cylindrical wall has an inner surface intersecting with the inner surface of the base wall and an outer surface defining the outer circumference of the base insert. The intersection of the inner surface of the base wall and the inner surface of the cylindrical wall is curved or forms an oblique angle, while the outer surface of the insert end is not curved and does not form an oblique angle. | 03-15-2012 |
| 20120180689 | RIFLE AND HANDGUN CARTRIDGE - A rifle or handgun cartridge is formed to have an overall length of about 2.260 inches, or 57.4 millimeters. The shell case has a case length between 1.550 inches and 1.620 inches and a neck forming a mouth for a variety of caliber bullets, preferably a standard .224 caliber bullet, or a 9.0 mm bullet. In the alternative, the bullet is a caliber .308 and the case length is 1.550. The shoulder adjoining the neck widens from the neck to a diameter of between 0.400 inches to 0.415 inches, and preferably 0.4059 inches. The base has a diameter of 0.426 to 0.430 inches (10.82-10.92 mm), and preferably 0.427 inches. The adjoining shell body forms the main powder chamber for receiving an explosive charge. A head adjoins the shell body and forms a base of the shell case. The head has a primer pocket formed therein communicating with the main powder chamber through a vent hole formed between the primer pocket and the main powder chamber. | 07-19-2012 |
| 20130305951 | CARTRIDGE CASES AND BASE INSERTS THEREFOR - A base insert for a cartridge case comprises a base end having a lip and a groove proximate the lip and having a primer pocket defined in the base end and an insert end having a base wall and a cylindrical wall extending there from, the base wall and cylindrical wall defining a powder fill pocket. The base wall has a flash hole disposed therein and an inner surface facing the powder fill pocket. The cylindrical wall has an inner surface intersecting with the inner surface of the base wall and an outer surface defining the outer circumference of the base insert. The intersection of the inner surface of the base wall and the inner surface of the cylindrical wall is curved or forms an oblique angle, while the outer surface of the insert end is not curved and does not form an oblique angle. | 11-21-2013 |
| 20140318404 | LONG-RANGE PRECISION FIREARM CARTRIDGE - A long-range precision firearm cartridge case including a cylindrical body portion with a head end and an opposite end, the cylindrical body portion having a central aperture extending into the head end for receipt of a primer, and the cylindrical body portion having a cartridge extraction groove formed around the periphery of the body portion adjacent the head end. The case including a cylindrical neck portion and a frusto-conical shoulder portion integrally formed with the body portion and the neck portion. The shoulder portion tapers radially inwardly from the opposite end of the body portion to the cylindrical neck portion. The neck portion extends longitudinally from the shoulder portion to define a projectile receiving end. The frusto-conical shoulder portion is constructed to form a shoulder angle with a longitudinal axis of the body portion, the shoulder angle being greater than 30 degrees and no greater than ninety degrees. | 10-30-2014 |
| 20150300791 | COMPOSITE CARTRIDGE CASE - A cartridge case has a heel element having a forward portion, a generally flat rear end portion, and a circumferential groove, having a generally radially extending rear face and a sloped forward face. A separate generally tubular sidewall, extends over the forward portion of the heel element and over the sloped forward face into the circumferential groove. | 10-22-2015 |
| 102470000 | With primer means | 4 |
| 20100147177 | Fluid energy delivery burst cartridge - A modified fluid delivery cartridge. A conventional straight-sided high pressure cartridge case is primed and then filled with solid propellant. A burst cup is inserted in the case mouth. The burst cup is preferably embossed with a cross or other shape to promote predictable rupture. A charge casing is provided which opens into a high pressure cartridge receiver bounded by an inner charge casing wall. The inner charge casing wall is provided with a step, in which the diameter of the high pressure cartridge receiver is reduced. The high pressure cartridge case is pressed into the receiver in the charge casing wall. As the high pressure cartridge case is being pressed into place, the straight wall of the case passes over the step in the inner charge casing wall, which deforms the straight wall to form a neck. This neck captured the burst cup within the high pressure cartridge case. | 06-17-2010 |
| 20100258023 | DELAYED EXTRACTION AND A FIREARM CARTRIDGE CASE - A high pressure cartridge case is provided for firearms with blowback operating systems. The cartridge case is provided with a primer support member that supports a primer in a rearward end of a cartridge case. The support member is slideable rearwardly in the cartridge case when the cartridge is fired. The components expand to seal with the cartridge case to prevent the escape of gas around the support member when the propellant is ignited. | 10-14-2010 |
| 20110048269 | Rifle Cartridge - A rifle cartridge is formed to have an overall length of about 2.800 inches, or 71.12 millimeters. The shell case has a case length between 1.900 inches and 1.950 inches and a neck forming a mouth for a standard .270 caliber bullet. The shoulder adjoining the neck widens from the neck to a diameter of between 0.445 inches to 0.465 inches, and preferably 0.450 inches. The adjoining shell body forms the main powder chamber for receiving an explosive charge. A head adjoins the shell body and forms a base of the shell case. The head has a primer pocket formed therein communicating with the main powder chamber through a vent hole formed between the primer pocket and the main powder chamber. | 03-03-2011 |
| 20120186480 | 37mm Screw Apart Shell - A two-piece reusable shell for use with launching systems. The launcher shell has a top tube portion that screws onto a base portion, which houses an ignition source and a propellant. The reusable shell allows for efficient access to all portions of the shell and for easy interchangeability between tubes of differing lengths and one standard base unit. | 07-26-2012 |
