With Metal Base Or Reinforcement Patents (Class 102/467)
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Patent number: 11733015Abstract: The present invention provides a two piece and a three piece primer insert for ammunition piece. Each of the individual pieces may be formed by punching, pressing, stamping, molding, milling, coining, or by additive manufacturing. The individual pieces may be joined by clinching, pressing welding soldering, sintering, adhesive gluing, staking, and iterative addition by forming one piece into another piece.Type: GrantFiled: July 2, 2019Date of Patent: August 22, 2023Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Lonnie Burrow, Christopher William Overton, Florian Herzog, Nimmy Mammoottil, Andrew Rosek
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Patent number: 11578955Abstract: An ammunition article comprises a polymer cartridge case formed of a polymer composition comprising a thermoplastic polymer, preferably the polymer composition having a density of less than 1.35 determined in accordance with ASTM D792, the polymer cartridge case having a first end, an opposing second end, and a chamber disposed between the first end and the second end for receiving a propellant; a projectile attached to the first end of the polymer cartridge case; a metal base insert joined to the second end of the polymer cartridge case; and a primer carried by the metal base insert; wherein the metal base insert and the polymer cartridge case remain joined together as a single piece assembly upon loading, firing and removal from a chamber of a firearm for a polymer case temperature of ?65° F. (?54° C.) to 165° F. (74° C.).Type: GrantFiled: July 26, 2019Date of Patent: February 14, 2023Assignee: SHPP GLOBAL TECHNOLOGIES B.V.Inventors: Mark A. Sanner, Ernest Ford Caldwell, Charles Padgett, Christopher Wall, Gerould Harding, Lanse Padgett
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Patent number: 11300393Abstract: One embodiment of the present invention provides a polymeric ammunition having a metal injection molded primer insert.Type: GrantFiled: October 29, 2018Date of Patent: April 12, 2022Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 11280596Abstract: The present invention provides an ammunition cartridge having a primer insert for having a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element is adapted to receive a polymer overmolding; a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and a groove in the primer recess positioned around the primer flash aperture adapted to receive a polymer overmolding, wherein the groove extends at least partially over the bottom surface and the groove is adapted to receive polymer at least partially over the bottom surface.Type: GrantFiled: July 23, 2019Date of Patent: March 22, 2022Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 11112225Abstract: The present invention provides polymeric ammunition cartridge having a generally cylindrical neck having a projectile aperture at a first end, a shoulder comprising a shoulder top connected to the generally cylindrical neck opposite a shoulder bottom, a nose junction positioned around the shoulder bottom, a skirt connected circumferentially about the nose junction to extend away from the shoulder bottom, wherein the nose junction and the skirt are adapted to mate to a base junction in a cartridge.Type: GrantFiled: February 1, 2018Date of Patent: September 7, 2021Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Lonnie Burrow, Christopher William Overton
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Patent number: 11085739Abstract: One embodiment of the present invention provides a stamped metal primer insert for a polymeric ammunition cartridge comprising: a top surface having a stamped flange that extends circumferentially about an outer edge of the top surface; a stamped coupling element that extends from the flange to a coupling tip; a stamped inner coupling element from the coupling tip to a bottom surface, wherein the bottom surface is opposite the top surface; a stamped primer recess in the top surface that extends toward the bottom surface; a primer flash aperture in the primer recess through the bottom surface; and a groove stamped in the primer recess around the primer flash aperture adapted to receive a polymer overmolding.Type: GrantFiled: October 4, 2018Date of Patent: August 10, 2021Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 11079205Abstract: The present invention provides a polymer nose for a polymeric ammunition cartridge having a generally cylindrical neck having a projectile aperture at a first end, an outer shoulder surface that extends from the generally cylindrical neck, an outer shoulder angle defined by the outer shoulder surface, an inner shoulder surface on the inside of the polymer nose opposite the outer shoulder surface, an inner shoulder angle defined by the outer shoulder surface, a skirt surface extending from the inner shoulder surface, a skirt angle defined by the skirt surface and a nose junction that extends from the outer shoulder surface to the skirt surface, wherein the nose junction is adapted to mate to a polymer cartridge.Type: GrantFiled: December 28, 2017Date of Patent: August 3, 2021Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Lonnie Burrow, Christopher William Overton
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Patent number: 11047664Abstract: 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.Type: GrantFiled: May 23, 2019Date of Patent: June 29, 2021Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 10876822Abstract: The present invention provides a molded polymer ammunition, ammunition cartridge, ammunition case, and ammunition mid-case, that is overmolded over a primer insert and into a flash aperture of the primer insert fitted to a polymer nose to be used to make polymer ammunition.Type: GrantFiled: November 9, 2017Date of Patent: December 29, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Lonnie Burrow, Christopher William Overton
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Patent number: 10866072Abstract: A multi-piece ammunition cartridge casing includes a casing base extending along a central axis and defining an opening extending axially into the casing base from the distal base end. The inner casing surface defines a circumferential groove with a groove radius greater than a radius of an adjacent portion of the opening. The cartridge casing also includes a casing body with a proximal end portion disposed in the opening of the casing base. The casing body is secured to the casing base by way of a flange protruding radially outward in mating contact with the circumferential groove.Type: GrantFiled: January 18, 2019Date of Patent: December 15, 2020Assignee: Sig Sauer, Inc.Inventors: Jason W. Imhoff, Thomas J. Burczynski
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Patent number: 10852108Abstract: The present invention provides polymeric ammunition cartridge having a generally cylindrical neck having a projectile aperture at a first end, an outer shoulder surface that extends from the generally cylindrical neck, an outer shoulder angle defined by the outer shoulder surface, an inner shoulder surface on the inside of the polymer nose opposite the outer shoulder surface, an inner shoulder angle defined by the outer shoulder surface, a skirt surface extending from the inner shoulder surface, a skirt angle defined by the skirt surface, and a nose junction that extends from the outer shoulder surface to the skirt surface, wherein the nose junction is adapted to mate to a polymer cartridge.Type: GrantFiled: May 23, 2019Date of Patent: December 1, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Lonnie Burrow, Christopher William Overton
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Patent number: 10753713Abstract: One embodiment of the present invention provides a method of stamping a metal primer insert for a polymeric ammunition cartridge comprising the steps of: providing an insert blank for stamping; stamping the insert blank to form a top surface having a flange that extends circumferentially about an outer edge of the top surface; stamping the insert blank to form a substantially cylindrical coupling element that extends from the flange to a coupling tip; stamping the insert blank to form an inner coupling element from the coupling tip to a bottom surface, wherein the bottom surface is opposite the top surface; stamping the insert blank to form a primer recess in the top surface that extends toward the bottom surface; stamping the insert blank to form a primer flash aperture in the primer recess through the bottom surface; and stamping the insert blank to form a groove in the primer recess around the primer flash aperture adapted to receive a polymer overmolding.Type: GrantFiled: October 4, 2018Date of Patent: August 25, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 10704877Abstract: 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.Type: GrantFiled: August 23, 2018Date of Patent: July 7, 2020Assignee: True Velocity IP Holdings, LLCInventors: Tyler Lee Boss, Lonnie Burrow, Michael Edward Godart, Jimmie Sloan, Andrew Rosek
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Patent number: 10704876Abstract: 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.Type: GrantFiled: August 23, 2018Date of Patent: July 7, 2020Assignee: True Velocity IP Holdings, LLCInventors: Tyler Lee Boss, Lonnie Burrow, Michael Edward Godart, Jimmie Sloan, Andrew Rosek
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Patent number: 10697743Abstract: A casing for use in a cartridge for a firearm comprises a sleeve and attached base. The sleeve has cylindrical portion with a mouth for holding a bullet and an opposing radially-running bulkhead from which extends a nipple that is secured within a passageway of the base by a lip at the nipple terminal end. There are one or more seal regions in the passageway. A sleeve is preferably made of austenitic stainless steel and there are differing hardness and magnetic properties along the sleeve length. Particularly for high pressure rounds, the bulkhead has a frusto-conical portion with one or more circumferential waves and mates with a conical depression in the surface of the base; optionally, a skirt around the periphery of the base provides support to the sleeve bulkhead. A base has a deep cannelure with a continuously curving groove bottom, enabling a base to be made of an iron alloy into which carbon is diffused to enable hardening, after machining.Type: GrantFiled: April 14, 2019Date of Patent: June 30, 2020Assignee: SHELL SHOCK TECHNOLOGIES LLCInventors: Anthony Viggiano, Volodymyr Drobockyi
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Patent number: 10677573Abstract: The present invention provides polymeric ammunition having a generally cylindrical neck having a projectile aperture at a first end, a shoulder comprising a shoulder top connected to the generally cylindrical neck opposite a shoulder bottom, a nose junction positioned around the shoulder bottom, a skirt connected circumferentially about the nose junction to extend away from the shoulder bottom, wherein the nose junction and the skirt are adapted to mate to a base junction in a cartridge.Type: GrantFiled: February 1, 2018Date of Patent: June 9, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Lonnie Burrow, Christopher William Overton
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Patent number: 10578409Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: 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.Type: GrantFiled: August 24, 2018Date of Patent: March 3, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 10571228Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: 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.Type: GrantFiled: August 24, 2018Date of Patent: February 25, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 10571231Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: 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 0.1 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 0.06 to 0.14 inches and the second segment has a second segment distance from 0.05 to 0.Type: GrantFiled: August 24, 2018Date of Patent: February 25, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 10571229Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: 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.Type: GrantFiled: August 24, 2018Date of Patent: February 25, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 10571230Abstract: The present invention provides a primer insert for a polymer ammunition cartridge comprising: 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 0.1 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 0.06 to 0.14 inches and the second segment has a second segment distance from 0.05 to 0.Type: GrantFiled: August 24, 2018Date of Patent: February 25, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow
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Patent number: 10533830Abstract: The present invention provides a A polymer nose for a polymeric ammunition cartridge having a generally cylindrical neck having a projectile aperture at a first end, an outer shoulder surface that extends from the generally cylindrical neck, an outer shoulder angle defined by the outer shoulder surface, an inner shoulder surface on the inside of the polymer nose opposite the outer shoulder surface, an inner shoulder angle defined by the outer shoulder surface, a skirt surface extending from the inner shoulder surface, a skirt angle defined by the skirt surface, and a nose junction that extends from the outer shoulder surface to the skirt surface, wherein the nose junction is adapted to mate to a polymer cartridge.Type: GrantFiled: December 28, 2017Date of Patent: January 14, 2020Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Lonnie Burrow, Christopher William Overton
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Patent number: 10408592Abstract: 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.Type: GrantFiled: August 23, 2018Date of Patent: September 10, 2019Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventors: Tyler Lee Boss, Lonnie Burrow, Michael Edward Godart, Jimmie Sloan, Andrew Rosek
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Patent number: 10048052Abstract: 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 between 25 and 80% 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.Type: GrantFiled: September 24, 2015Date of Patent: August 14, 2018Assignee: True Velocity, Inc.Inventor: Lonnie Burrow
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Patent number: 9969112Abstract: A manufacturing process is provided for a shoe with a fabric upper that is internally provided with a waterproof coating layer made of plastic material. The process includes the step of piercing of the upper in order to inject plastic material in an intermediate space between a core of a mold and the upper.Type: GrantFiled: February 20, 2015Date of Patent: May 15, 2018Assignee: CALZATURIFICIO MODA ITALIANA SRLInventor: Osvaldo Giangrandi
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Patent number: 9927219Abstract: The present invention includes a metal primer insert for a polymeric ammunition cartridge having 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 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 that covers an circumferential surface and the primer flash aperture to form a primer flash hole.Type: GrantFiled: May 28, 2015Date of Patent: March 27, 2018Assignee: True Velocity, Inc.Inventor: Lonnie Burrow
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Patent number: 9683818Abstract: Polymer-based composite casings and ammunition containing the same are disclosed. Methods of making and using polymer-based composite casings and ammunition containing the same are also disclosed.Type: GrantFiled: December 21, 2012Date of Patent: June 20, 2017Assignee: PolyCase Ammunition, LLCInventors: Paul Lemke, Juan Carlos Marin
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Patent number: 9395165Abstract: 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.Type: GrantFiled: October 6, 2015Date of Patent: July 19, 2016Assignee: MAC, LLCInventors: Nikica Maljkovic, Joe Paul Gibbons, Jr., John Francis Bosarge, Jr.
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Patent number: 9335137Abstract: 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.Type: GrantFiled: October 6, 2015Date of Patent: May 10, 2016Assignee: MAC, LLCInventors: Nikica Maljkovic, John Francis Bosarge, Jr., Joe Paul Gibbons, Jr.
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Patent number: 9188412Abstract: 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.Type: GrantFiled: July 30, 2012Date of Patent: November 17, 2015Assignee: MAC, LLCInventors: Nikica Maljkovic, John Francis Bosarge, Joe Paul Gibbons
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Patent number: 9003973Abstract: A high strength polymer-based cartridge casing includes an upper component of polymer, a bullet of a standard weight, a lower component of polymer, and an insert. The upper component has a shoulder portion and an upper component inner wall has a first diameter extending from the shoulder. The lower component has a lower component inner wall having a second diameter. The upper and lower component inner walls form a propellant chamber; and the first and second diameters reduce a volume of the propellant chamber. The reduced volume of the propellant chamber permits only enough propellant to propel a bullet engaged in the cartridge casing at subsonic speeds.Type: GrantFiled: June 26, 2014Date of Patent: April 14, 2015Assignee: PCP Tactical, LLCInventor: Tony Padgett
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Patent number: 8978559Abstract: 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.Type: GrantFiled: July 25, 2013Date of Patent: March 17, 2015Assignee: Nylon Corporation of America, Inc.Inventors: Jack D Davies, Gregory Biederman, Christopher A Coco
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Publication number: 20150033970Abstract: 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.Type: ApplicationFiled: July 31, 2014Publication date: February 5, 2015Inventors: Nikica Maljkovic, John Francis Bosarge, Chris Davis
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Patent number: 8875633Abstract: 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.Type: GrantFiled: April 17, 2013Date of Patent: November 4, 2014Assignee: PCP Tactical, LLCInventor: Charles Padgett
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Patent number: 8813650Abstract: 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.Type: GrantFiled: July 10, 2012Date of Patent: August 26, 2014Assignee: Solvay Advanced Polymers, L.L.C.Inventors: Nikica Maljkovic, Todd S. Rushing
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Publication number: 20140216293Abstract: 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.Type: ApplicationFiled: September 30, 2013Publication date: August 7, 2014Applicant: PCP Tactical, LLCInventors: Thomas R. Klein, Sy Wiley
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Patent number: 8763535Abstract: A high strength polymer-based cartridge casing includes an upper component of polymer, a bullet of a standard weight, a lower component of polymer, and an insert. The upper component has a shoulder portion and an upper component inner wall has a first slope extending from the shoulder. The lower component has a lower component inner wall having a second slope. The upper and lower component inner walls form a propellant chamber; and the first and second slopes reduce a volume of the propellant chamber. The reduced volume of the propellant chamber permits only enough propellant to propel a bullet engaged in the cartridge casing at subsonic speeds.Type: GrantFiled: July 13, 2012Date of Patent: July 1, 2014Assignee: PCP Tactical, LLCInventor: Tony Padgett
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Publication number: 20140076188Abstract: 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.Type: ApplicationFiled: July 30, 2012Publication date: March 20, 2014Applicant: MAC, LLCInventors: Nikica Maljkovic, John Francis Bosarge, Joe Paul Gibbons
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Publication number: 20140060373Abstract: 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.Type: ApplicationFiled: July 30, 2012Publication date: March 6, 2014Applicant: MAC,LLCInventors: Nikica Maljkovic, Joe Paul Gibbons, John Francis Bosarge
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Patent number: 8573126Abstract: 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.Type: GrantFiled: July 30, 2010Date of Patent: November 5, 2013Assignee: PCP Tactical, LLCInventors: Thomas R. Klein, Sy Wiley
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Patent number: 8561543Abstract: 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.Type: GrantFiled: November 9, 2011Date of Patent: October 22, 2013Assignee: True Velocity, Inc.Inventor: Lonnie Burrow
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Patent number: 8522684Abstract: 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.Type: GrantFiled: September 2, 2011Date of Patent: September 3, 2013Assignee: Nylon Corporation of America, Inc.Inventors: Jack D Davies, Gregory J Biederman, Christopher A Coco
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Publication number: 20130186294Abstract: 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.Type: ApplicationFiled: September 27, 2011Publication date: July 25, 2013Applicant: Nylon Corporation of America, Inc.Inventors: Jack Davies, Christopher Coco
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Patent number: 8443730Abstract: 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.Type: GrantFiled: January 13, 2012Date of Patent: May 21, 2013Assignee: PCP Tactical, LLCInventor: Charles Padgett
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Patent number: 8408137Abstract: 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.Type: GrantFiled: May 6, 2010Date of Patent: April 2, 2013Inventor: Vin Battaglia
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Publication number: 20130014665Abstract: 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.Type: ApplicationFiled: July 10, 2012Publication date: January 17, 2013Applicant: Solvay Advanced Polymers, L.L.C.Inventors: Nikica Maljkovic, Todd S. Rushing
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Publication number: 20120111219Abstract: 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.Type: ApplicationFiled: November 9, 2011Publication date: May 10, 2012Applicant: True Velocity, Inc.Inventor: Lonnie Burrow
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Publication number: 20120024183Abstract: 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.Type: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Applicant: MNP CorporationInventor: Thomas R. Klein
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Publication number: 20110179965Abstract: 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.Type: ApplicationFiled: November 2, 2010Publication date: July 28, 2011Inventor: Mark Mason
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Publication number: 20100282112Abstract: 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.Type: ApplicationFiled: May 6, 2010Publication date: November 11, 2010Inventor: Vin Battaglia