Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition
AssigneePCP Tactical, LLC
InventorTony Padgett
Life of this patent
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Abstract
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.
Claims5
A high strength polymer-based cartridge for subsonic ammunition comprising:
- an upper component, molded from a polymer;
- a bullet, having a conventional weight for a caliber of the bullet, removably engaged with the upper component;
- a lower component, molded from a polymer, and engaged the upper component;
- an insert engaged to the lower component;
- a shoulder portion of the upper component;
- an upper component inner wall extending from the shoulder to the lower component and having a first diameter;
- a lower component inner wall extending from the upper component to the insert having a second diameter;
- and
- a linear slope disposed between the first diameter and the second diameter;
- wherein the upper and lower component inner walls form a propellant chamber;
- wherein the first diameter does not equal the second diameter;
- wherein the first diameter is less than the second diameter;
- and
- wherein the slope between the first and second diameters reduces a volume of the propellant chamber.
A method of making a high strength polymer-based cartridge casing for subsonic ammunition comprising the steps of:
- molding an upper component from a polymer;
- removably disposing a conventional weight bullet, for a caliber of the bullet, in the upper component;
- molding a lower component from a second polymer;
- engaging the upper component to the lower component;
- forming an insert engaged to the lower component;
- molding a shoulder portion of the upper component;
- extending an upper component inner wall from the shoulder to the lower component;
- molding a first diameter in the upper component;
- extending a lower component inner wall from the upper component to the insert;
- molding a second diameter in the lower component inner wall not equal to the first diameter;
- molding a linear slope disposed between the first diameter and the second diameter;
- forming a propellant chamber from the upper and lower component inner walls, the slope between the first and second diameters reducing a volume of the propellant chamber;
- and
- permitting, based on the reduced volume, enough propellant to propel the bullet at subsonic speeds.
Dependencies are inferred from the claim text.