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    Method of making a metal injection molded ammunition cartridge
    1.
    发明授权
    Method of making a metal injection molded ammunition cartridge 有权

    公开(公告)号：US11733010B2

    公开(公告)日：2023-08-22

    申请号：US17544113

    申请日：2021-12-07

    申请人： TRUE VELOCITY IP HOLDINGS, LLC

    发明人： Lonnie Burrow

    IPC分类号： F42B5/02 ,  B29C45/00 ,  F42B5/26 ,  F42B5/285 ,  F42B5/36

    CPC分类号： F42B5/02 ,  B29C45/0046 ,  F42B5/26 ,  F42B5/285 ,  F42B5/36

    摘要： The present invention provides a method of making a metal injection molded ammunition cartridge comprising the steps of: providing an ammunition cartridge mold comprising a bottom portion having a primer recess extending into the bottom portion adapted to receive a primer, a flash hole positioned in the primer recess through the bottom surface; side walls extending from the bottom portion to a nose end aperture, wherein a propellant chamber is formed between the nose end aperture and the bottom surface; injecting a metal composition into the ammunition cartridge mold to form a metal injection molded ammunition cartridge; and removing the metal injection molded ammunition cartridge from the ammunition cartridge mold.

    METHOD OF MAKING POLYMERIC SUBSONIC AMMUNITION
    3.
    发明申请
    METHOD OF MAKING POLYMERIC SUBSONIC AMMUNITION 有权

    公开(公告)号：US20220349691A1

    公开(公告)日：2022-11-03

    申请号：US17683688

    申请日：2022-03-01

    申请人： TRUE VELOCITY IP HOLDINGS, LLC

    发明人： Lonnie Burrow

    IPC分类号： F42B33/00 ,  F42B5/16 ,  F42B5/307 ,  F42C19/08 ,  F42B33/02

    摘要： The present invention provides a method of making a subsonic ammunition 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.

    Subsonic polymeric ammunition
    4.
    发明授权
    Subsonic polymeric ammunition 有权

    公开(公告)号：US11454479B2

    公开(公告)日：2022-09-27

    申请号：US17090111

    申请日：2020-11-05

    申请人： TRUE VELOCITY IP HOLDINGS, LLC

    发明人： Lonnie Burrow

    IPC分类号： F42B5/307 ,  F42C19/02 ,  F42C19/08 ,  F42B5/02 ,  F42B5/30 ,  F42B33/00 ,  F42B5/16 ,  F42C19/10 ,  F42B33/02

    摘要： The present invention provides a subsonic ammunition comprising: a primer insert comprises a top surface opposite a bottom surface, a substantially cylindrical coupling element extending away from the bottom surface forming, 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, a flash aperture groove in the primer recess that extends circumferentially about the primer flash aperture, and a flange that extends circumferentially about an outer edge of the top surface; a polymeric casing body comprising a generally cylindrical hollow polymer body molded over the substantially cylindrical coupling element, into the primer flash aperture and into the flash aperture groove to form a flash hole and extending toward a mid-body coupling joint; a nose comprising a projectile aperture that extends to a neck connected to a shoulder that transitions from the projectile aperture to a nose coupler, wherein the nose coupler is connected to the mid-body coupling joint; a propellant chamber formed between the projectile aperture and the primer flash aperture; and wherein the generally cylindrical hollow polymer body comprises a thickened wall that reduce the internal volume of the propellant chamber by at least 10%, wherein the thickened wall comprises a first passage comprising a first passage comprising a first aperture having a first diameter about the diameter of the flash hole that extends to a first top surface and a second passage that extends from the first top surface toward the neck, wherein the second passage has a second diameter about the size of the projectile aperture; a primer fitted in the primer pocket; a propellant disposed in the propellant chamber; and a projectile positioned in the projectile aperture.

    POLYMER AMMUNITION AND CARTRIDGE HAVING A CONVEX PRIMER INSERT
    5.
    发明申请
    POLYMER AMMUNITION AND CARTRIDGE HAVING A CONVEX PRIMER INSERT 有权

    公开(公告)号：US20220290956A1

    公开(公告)日：2022-09-15

    申请号：US17569820

    申请日：2022-01-06

    申请人： TRUE VELOCITY IP HOLDINGS, LLC

    发明人： Lonnie Burrow ,  Christopher William Overton

    IPC分类号： F42B5/307

    摘要： The present invention provides a primer insert for a polymer ammunition cartridge 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 convex transition region that transitions from the bottom surface to a second segment wherein the transition region has an overall convex shape; 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 0.09 inches, wherein the second segment has a second segment angle from +3 to −3 degrees relative to the first segment angle and the first segment has a first segment angle from +6 to −6 degrees from perpendicular to the top surface; a primer recess in the top surface that extends toward the bottom surface; a primer flash aperture positioned in the primer recess through the bottom surface; and a flash aperture groove in the primer recess and positioned around the primer flash aperture and adapted to receive a polymer overmolding through the primer flash aperture.

    MULTI-PIECE POLYMER AMMUNITION CARTRIDGE
    6.
    发明申请
    MULTI-PIECE POLYMER AMMUNITION CARTRIDGE 有权

    公开(公告)号：US20220260348A1

    公开(公告)日：2022-08-18

    申请号：US17532144

    申请日：2021-11-22

    申请人： TRUE VELOCITY IP HOLDINGS, LLC

    发明人： Lonnie Burrow ,  Christopher William Overton

    IPC分类号： F42B5/307 ,  F42C19/08 ,  F42B5/313

    摘要： 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.

    Subsonic polymeric ammunition cartridge
    8.
    发明授权
    Subsonic polymeric ammunition cartridge 有权

    公开(公告)号：US11340050B2

    公开(公告)日：2022-05-24

    申请号：US14863644

    申请日：2015-09-24

    申请人： TRUE VELOCITY IP HOLDINGS, LLC

    发明人： Lonnie Burrow

    IPC分类号： F42B5/307 ,  F42C19/08 ,  F42B5/16 ,  F42B33/00 ,  F42B33/02 ,  F42C19/10

    摘要： 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 between 25 and 80% 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.