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Method of making polymer ammunition having a primer diffuser

a technology of polymer ammunition and diffuser, which is applied in the field of ammunition, can solve the problems of not providing satisfactory ammunition, high cost, and potentially hazardous, and achieve the characteristics of the ammunition

Active Publication Date: 2017-04-27
TRUE VELOCITY IP HLDG LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a method for making a polymeric ammunition with a primer inserted into a diffuser cup. The method involves forming a cylindrical insert with a primer recess, a primer flash hole aperture, and a flange. A polymer middle body is then formed by overmolding a polymer composition over the cylindrical insert. A polymer bullet-end component is then formed and attached to the polymer middle body to form a propellant chamber. The polymer middle body is then filled with a propellant and the bullet-end component is attached to the bullet to form the propellant chamber. The technical effect of this invention is to provide a reliable and effective method for making polymeric ammunition with a primer.

Problems solved by technology

Conventional ammunition cartridge casings for rifles and machine guns, as well as larger caliber weapons, are made from brass, which is heavy, expensive, and potentially hazardous.
Plastic cartridge casings have been known for many years but have failed to provide satisfactory ammunition that could be produced in commercial quantities with sufficient safety, ballistic, handling characteristics, and survive physical and natural conditions to which it will be exposed during the ammunition's intended life cycle; however, these characteristics have not been achieved.
Shortcomings of the known plastic or substantially plastic ammunition include the possibility of the projectile being pushed into the cartridge casing, the bullet pull being too light such that the bullet can fall out, the bullet pull being too insufficient to create sufficient chamber pressure, the bullet pull not being uniform from round to round, and portions of the cartridge casing breaking off upon firing or insufficient sealing about the primer.

Method used

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  • Method of making polymer ammunition having a primer diffuser
  • Method of making polymer ammunition having a primer diffuser
  • Method of making polymer ammunition having a primer diffuser

Examples

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Embodiment Construction

[0018]While the making and using of various embodiments of the present invention are discussed in detail below, it should be appreciated that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention and do not delimit the scope of the invention.

[0019]To facilitate the understanding of this invention, a number of terms are defined below. Terms defined herein have meanings as commonly understood by a person of ordinary skill in the areas relevant to the present invention. Terms such as “a”, “an” and “the” are not intended to refer to only a singular entity, but include the general class of which a specific example may be used for illustration. The terminology herein is used to describe specific embodiments of the invention, but their usage does not delimit the invention, except as outlined in the claims.

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Abstract

The present invention provides a polymeric ammunition having a polymeric cartridge, projectile and a primer insert having a primer diffuser cup with a primer inserted therein.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]None.TECHNICAL FIELD OF THE INVENTION[0002]The present invention relates in general to the field of ammunition, specifically to lightweight polymer ammunition having a primer having a diffuser.STATEMENT OF FEDERALLY FUNDED RESEARCH[0003]None.INCORPORATION-BY-REFERENCE OF MATERIALS FILED ON COMPACT DISC[0004]None.BACKGROUND OF THE INVENTION[0005]Without limiting the scope of the invention, its background is described in connection with primers for polymer cartridge casing ammunition. Conventional ammunition cartridge casings for rifles and machine guns, as well as larger caliber weapons, are made from brass, which is heavy, expensive, and potentially hazardous. There exists a need for an affordable lighter weight replacement for brass ammunition cartridge cases that can increase mission performance and operational capabilities. Lightweight polymer cartridge casing ammunition must meet the reliability and performance standards of existing f...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F42B33/00F42B33/02F42B33/04
CPCF42B33/001F42B33/0207F42B33/04F42B5/307F42C19/0807F42C19/083F42C19/10
Inventor BURROW, LONNIE
Owner TRUE VELOCITY IP HLDG LLC
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