Narrowing high strength polymer-based cartridge for blank and subsonic ammunition

• US 9,995,561 B2
• Filed: 06/20/2016
• Issued: 06/12/2018
• Est. Priority Date: 01/14/2011
• Status: Active Grant

• Current Assignee: Pcp Tactical, LLC
• Original Assignee: Pcp Tactical, LLC
• Inventors: Padgett, Tony
• Primary Examiner(s): Freeman, Joshua E
• Application Number:
  US15/187,421
• Publication Number:
  US 20160298944A1
• Time in Patent Office: 722 Days
• Field of Search: 102439
• CPC Class Codes: F42B 12/76 of the casing
• CPC Class Codes: F42B 33/02 Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges F42B33/004 takes precedence
• CPC Class Codes: F42B 5/307 formed by assembling several elements
• CPC Class Codes: F42B 5/313 all elements made of plastics
• CPC Class Codes: F42B 8/04 Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge

Abstract

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.

Claims

1. A high strength polymer-based cartridge for subsonic ammunition comprising:

a first end having a mouth;

a projectile disposed in the mouth;

a shoulder disposed below the mouth forming a bottleneck cartridge; and

at least a wall, molded from a polymer, between the first end and a second end of the upper component opposite the first end forming a propellant chamber; and

an insert joined to the second end;

wherein the wall comprises a thickness at least 1.25 times greater than a standard thickness of a wall of a standard cartridge,

wherein the propellant chamber between the mouth and the insert is unobstructed, and

wherein the propellant chamber comprises a powder load having a load density greater than 40%.

2. The high strength polymer-based cartridge of claim 1, wherein the insert is made from a metal, an alloy of metals, or an alloy of a metal and a non-metal.

3. The high strength polymer-based cartridge of claim 1, wherein the thickened wall begins below the shoulder.

4. The high strength polymer-based cartridge of claim 3, further comprising a bowl formed in the wall over the insert.