Method of coding polymer ammunition cartridges
AssigneeTrue Velocity IP Holdings, LLC
InventorLonnie Burrow
Life of this patent
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Abstract
The present invention provides a method of coding polymer ammunition cartridges by providing a first colored polymer forming a polymeric bullet-end upper portion comprising a bullet-end coupling element extending to a bullet-end aperture to engage a bullet; providing a second colored polymer forming a polymeric middle body comprising a first coupling end connected to the bullet-end coupling element and a second coupling end connected to a primer insert to form a propellant chamber that connects the bullet-end aperture to the primer insert; and coding the first colored polymer, the second colored polymer or both to identify a projectile type, an ammunition type, a propellant charge, or a combination thereof.
Claims19
A method of making color coded polymer ammunition cartridges comprising the steps of:
- providing a polymer ammunition cartridges comprising a primer insert comprising a top surface opposite a bottom surface and an coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a flash hole aperture positioned in the primer recess to extend through the bottom surface, and a flash aperture groove in the primer recess that extends circumferentially about the flash hole aperture;
- a mid-body comprising a second polymer composition having a nose coupler at one end extending to an overmolded primer insert, wherein the second polymer composition extends over the coupling element and into the flash hole aperture to the flash aperture groove to form an overmolded flash hole;
- a nose connected to the coupling element wherein the nose comprises a first polymer composition, wherein the nose comprises a mid-body coupling element connected to a projectile end aperture to engage a projectile by a shoulder;
- providing a first colorant in the first polymer composition;
- and
- providing at least a second colorant in the second polymer composition.
Dependencies are inferred from the claim text.